David's Astronomy - Supernovae 2021

David's Astronomy Pages (Deep Sky)
Supernovae - 2021

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This page documents observations and images of supernova with discovery dates in 2021.
(Note: Some images may roll over into the following year)

Supernovae (2021)
Name, type, discovery date, host galaxy

SN 2021J - Type Ia Supernova (2021-01-01) in NGC 4414

SN 2021K - Type Ia Supernova (2021-01-01) in MCG +6-30-84 / PGC 48870

SN 2021pc - Type Ia Supernova (2021-01-07) in UGC 784

SN 2021nv - Type Ia Supernova (2021-01-07) in UGC 1436

SN 2021xn - Type Ia Supernova (2021-01-10) in PGC 6041

SN 2021apf - Type Ia Supernova (2021-01-16) in CGCG 056-009

SN 2021ass - Type II Supernova (2021-01-18) in NGC 684

SN 2021bge - Type II Supernova (2021-01-27) in UGC 2505

SN 2021biz - Type Ia Supernova (2021-01-29) in NGC 4227

SN 2021bjy - Type Ia Supernova (2021-01-30) in CGCG 264-017

SN 2021bkw - Type Ia Supernova (2021-01-31) in LEDA 1634284

SN 2021bug - Type II Supernova (2021-02-04) in NGC 4533 (Attempt)

SN 2021cjd - Type IIP Supernova (2021-02-07) in NGC 4774

SN 2021cwc - Type Ia Supernova (2021-02-13) in UGC 3502

SN 2021dnn - Type Ia Supernova (2021-02-22) in NGC 304

SN 2021dwg - Type Ic Supernova (2021-02-27) in IC 992

SN 2021foa - Type IIn Supernova (2021-03-15) in IC 863

SN 2021fxy - Type Ia Supernova (2021-03-17) in NGC 5018

SN 2021gmh - Type Ia Supernova (2021-03-19) in SDSS J223433.36+340019.1

SN 2021gno - Type II Supernova (2021-03-20) in NGC 4165

SN 2021gmj - Type II Supernova (2021-03-20) in NGC 3310 (Herschel IV-60)

SN 2021hcz - Type Ia Supernova (2021-03-24) in NGC 1400

SN 2021hiz - Type Ia Supernova (2021-03-30) in IC 3322A

AT2021kni - Candidate Supernova (2021-04-26) in NGC 7767

SN 2021koq - Type Ia Supernova (2021/04/28) in UGC 11177

SN 2021tyf - Type II Supernova (2021-07-24) in UGC 9479 (Attempt)

SN 2021ucg - Type II Supernova (2021-07-25) in UGC 12188

SN 2021ukt - Type Ia Supernova (2021-07-31) in UGC 505

SN 2021umh - Type Ia Supernova (2021-08-01) in LEDA 2204848

SN 2021usd - Type Ia Supernova (2021-08-02) in CGCG 200-019 (Attempt)

SN 2021vau - Type Ia Supernova (2021-08-04) in UGC 3240

SN 2021vtl - Type Ia Supernova (2021-08-11) in NGC 940

SN 2021wcu - Type Ia Supernova (2021-08-13) in GALEXASC J072024.60+325058.8

SN 2021wad - Type Ia Supernova (2021-08-15) in NGC 4896

SN 2021win - Type Ia Supernova (2021-08-18) in WISEA J050619.12+223047.4

SN 2021wqi - Type Ia Supernova (2021-08-20) in NGC 5513

SN 2021wkv - Type Ia Supernova (2021-08-20) in NGC 6184

SN 2021wuf - Type Ia Supernova (2021-08-23) in NGC 6500

SN 2021wvy - Type II Supernova (2021-08-23) in UGC 4002

SN 2021wvw - Type II Supernova (2021-08-24) in UGC 2605

SN 2021wyw - Type Ia Supernova (2021-08-25) in NGC 7501

SN 2021xgx - Type Ia Supernova (2021-08-29) in UGC 10607

SN 2021yal - Type Ia-91T Supernova (2021-09-05) in PGC 1155307 (Attempt)

SN 2021yok - Type II Supernova (2021-09-10) in UGC 3873

SN 2021zby - Type II Supernova (2021-09-17) in NGC 1166

SN 2021zju - Type Ib Supernova (2021-09-24) in NGC 9

SN 2021aalq - Type II Supernova (2021-10-03) in WISEA J095040.62+475756.9

SN 2021aazm - Type II Supernova (2021-10-09) in UGC 235

SN 2021abcw - Type Ibn Supernova (2021-10-11) in UGC 5751

SN 2021abjr - Type Ia Supernova (2021-10-13) in WISEA J102139.24+062408.7

SN 2021abkm - Type II Supernova (2021-10-14) in NGC 6627

SN 2021abko - Type Ia Supernova (2021-10-14) in IC 190

SN 2021abzd - Type Ia 91bg-like (2021-10-22) in NGC 233 (Attempt)

SN 2021abze - Type II Supernova (2021-10-22) in NGC 234 (Attempt)

SN 2021aceu - Type Ia Supernova (2021-10-22) in UGC 811

SN 2021aclv (?) - Type Ia Supernova (2021-10-30) in NGC 327

SN 2021adpe - Type Ia Supernova (2021-11-04) in UGC 8975

SN 2021aefs - Type II Supernova (2021-11-09) in NGC 3836

SN 2021afkk - Type II Supernova (2021-11-25) in UGC 1971

SN 2021afsj - Type Ia Supernova (2021-11-29) in UGC 4671

SN 2021agco - Type II Supernova (2021-12-05) in UGC 3855

SN 2021agdd - Type Ia Supernova (2021-12-07) in NGC 7446

SN 2021aggu - Type Ia Supernova (2021-12-12) in NGC 2761

SN 2021agpf - Type Ia Supernova (2021-12-26) in NGC 5732

SN 2021agpj - Type Ia Supernova (2021-12-27) in 2MFGC 03677

SN 2021ahot - Type Ia Supernova (2021-12-30) in LEDA 2156782

SN 2021J - Type Ia Supernova (discovered 2021-01-01) in NGC 4414

NGC 4414 (Coma Berenices)
SN 2021J (Type Ia, z=0.0024) discovered 2021/01/01.489 UT by ZTF
Alias: ZTF21aaabvit
Mag +13.97 at discovery
(Rochester Supernova site | Jean-Claude Merlin image | )

NGC 4414 with SN 2021J - 2021-01-12 (T+10.7d)

Annotated CCD Image (50% size, square root scale)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-01-12 05:30 UT (#848177-81)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021J - Image sequence T+7.5d to T+24.7d
(SN discovery, T = 2021-01-01.489)

NGC 4414 with SN 2021J - 2021-01-08 (T+7.5)
Image below (2021-01-08.952) was taken 7.5 days after discovery of SN 2021J
SN is shown by white cross hairs. Magnitude ?
Taken through poor transparency sky
(cf. with later image taken on 2021-01-12)

Annotated CCD Image (125% size, square root scale, cropped)
180s exposure (single frame), 3x3 binning, C Filter
2021-01-08 22:52 UT (#847157)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 4414 with SN 2021J - 2021-01-12 (T+10.7d)
Image below (2021-01-12.223) was taken 10.7 days after discovery of 2021J
SN is shown by white cross hairs. Magnitude ?

Annotated CCD Image (125% size, log scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-01-12 05:30 UT (#848177-81)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 4414 with SN 2021J - 2021-01-17 (T+15.7d)
Image below (2021-01-17.219) was taken 15.7 days after discovery of 2021J
SN is shown by white cross hairs. Magnitude ?

Annotated CCD Image (125% size, log scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-01-17 05:25 UT (#850314-18)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 4414 with SN 2021J - 2021-01-18 (T+16.7d)
Image below (2021-01-18.147) was taken 16.7 days after discovery of 2021J
SN is shown by white cross hairs. Magnitude ?

Annotated CCD Image (125% size, log scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-01-18 03:41 UT (#851055-59)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 4414 with SN 2021J - 2021-01-19 (T+17.6d)
Image below (2021-01-19.056) was taken 17.6 days after discovery of 2021J
SN is shown by white cross hairs. Magnitude ?

Annotated CCD Image (125% size, log scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-01-19 01:29 UT (#852067-71)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 4414 with SN 2021J - 2021-01-23 (T+21.7d)
Image below (2021-01-23.190) was taken 21.7 days after discovery of 2021J
SN is shown by white cross hairs. Magnitude ?

Annotated CCD Image (125% size, log scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-01-23 04:43 UT (#853316-20)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 4414 with SN 2021J - 2021-01-24 (T+22.6d)
Image below (2021-01-24.092) was taken 22.6 days after discovery of 2021J
SN is shown by white cross hairs. Magnitude ?

Annotated CCD Image (125% size, log scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-01-24 02:22 UT (#854311-15)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 4414 with SN 2021J - 2021-01-26 (T+24.7d)
Image below (2021-01-26.142) was taken 24.7 days after discovery of 2021J
SN is shown by white cross hairs. Magnitude ?

Annotated CCD Image (125% size, log scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-01-26 03:34 UT (#855223-27)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 4414 - Earlier Image (2006)

CCD Image (100% size, linear scale)
2 x 2 min exposure (average combine), 2x2 binning, C FilterÂ
2006-04-23 22:58h UT (#116099-100))
8" LX200 Classic + ST-7E

SN 2021K - Type Ia Supernova (discovered 2021-01-01) in MCG +6-30-84 / PGC 48870

MCG +6-30-84 / PGC 48870 with SN 2021K (Canes Venatici)
MCG +6-30-84 / Alias
SN 2021K (Type: Ia) discovered 2021/01/01.490 UT by ZTF
Discovery Magnitude 15.71
Alias: ZTF21aaabvjk, Gaia21acj
Confirmed SN Ia
Gaia, 2021-01-04 03:38:42, Mag 15.42
Gaia, 2021-01-27 03:33:29, Mag 15.86
Gaia, 2021-05-03 12:37:25, Mag 18.30
Gaia, 2021-05-16 06:43:09, Mag 18.49
Gaia, 2021-05-16 08:29:43, Mag 18.62
Gaia, 2021-07-28 07:08:07, Mag 19.80
Gaia, 2021-08-21 19:10:09, Mag 20.21
(Rochester Supernova site | ZTF observations | TNS 2021K | Gaia21acj )

MCG +6-30-84 / PGC 48870 with SN 2021K - 2021-01-13 (T+11.8d)
MCG +6-30-84 / PGC 48870 (catalog mag +15.5)
with other galaxies in view: PGC 48887 (catalog +14.7),
PGC 2044865 (catalog mag +17.1), PGC 214152 (catalog mag +17.2)

Annotated CCD Image (50% size, square root scale)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-01-13 06:51 UT (#9123-27)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

MCG +6-30-84 w/ SN 2021K - 2021-01-13 (T+11.8d)
Image contrast adjusted to highlight the
stellar-looking object SN 2021K (shown by white cross hairs)

Annotated CCD Image (125% size, square root scale, cropped)
Contrast adjusted
Image details as above

SN 2021K - Image sequence T+11.8d to T+54.7d
(SN discovery, T = 2021-01-01.490)

MCG +6-30-84 w/ SN 2021K - 2021-01-13 (T+11.8d)
Image below (2021-01-13.279) was taken 11.8 days after discovery of 2021K
SN is shown by white cross hairs.
Measured magnitude +14.6 (SN + Galaxy Centre)
vs Host Galaxy Catalog Mag +15.5

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-01-13 06:51 UT (#849123-27)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

MCG +6-30-84 w/ SN 2021K - 2021-01-17 (T+15.7d)
Image below (2021-01-17.203) was taken 15.7 days after discovery of 2021K
SN is shown by white cross hairs.
Measured magnitude +14.6, SN + Galaxy Centre (flat)
vs Host Galaxy Catalog Mag +15.5

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-01-17 05:02 UT (#850305-09)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

MCG +6-30-84 / PGC 48870 with SN 2021K - 2021-01-19 (T+17.8d)
Image below (2021-01-19.256) was taken 17.8 days after discovery of 2021K
SN is shown by white cross hairs.
Measured magnitude +14.7, SN + Galaxy Centre (fading)
vs Host Galaxy Catalog Mag +15.5

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-01-19 06:18 UT (#852199-203)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

MCG +6-30-84 / PGC 48870 with SN 2021K - 2021-01-26 (T+24.7d)
Image below (2021-01-26.216) was taken 24.7 days after discovery of 2021K
SN is shown by white cross hairs.
Measured magnitude +15.1, SN + Galaxy Centre (brightening)
vs Host Galaxy Catalog Mag +15.5

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-01-26 05:20 UT (#855278-82)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

MCG +6-30-84 / PGC 48870 with SN 2021K - 2021-02-25 (T+54.7d)
Image below (2021-02-25.208) was taken 54.7 days after discovery of 2021K
SN is shown by white cross hairs.
Measured magnitude +15.2, SN + Galaxy Centre (fading)
vs Host Galaxy Catalog Mag +15.5

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-02-25 05:10 UT (#862093-97)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

MCG +6-30-84 with SN 2021K - 2021-03-22 (T+79.7d)
Image below (2021-03-22.140) was taken 79.7 days after discovery of 2021K
SN is shown by white cross hairs.
Measured magnitude +15.29 (SN + Galaxy Centre)
vs Host Galaxy Catalog Mag +15.29

Annotated CCD Image (125% size, square root scale, cropped)
180s exposure (single frame), 3x3 binning, C Filter
2021-03-22 03:25 UT (#873098)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

MCG +6-30-84 with SN 2021K - 2021-03-30 (T+87.5d)
Image below (2021-03-30.034) was taken 87.5 days after discovery of 2021K
SN is shown by white cross hairs.
Measured magnitude +15.29 (SN + Galaxy Centre) (steady)
vs Host Galaxy Catalog Mag +15.29

Annotated CCD Image (125% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-03-30 00:58 UT (#877102-06)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

MCG +6-30-84 with SN 2021K - 2021-04-13 (T+101.5d)
Image below (2021-04-13.017) was taken 101.5 days after discovery of 2021K
Position of reported SN is shown by white cross hairs.
Measured magnitude +14.88 (SN + Galaxy Centre)
vs Host Galaxy Catalog Mag +15.29

Annotated CCD Image (125% size, square root scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2021-04-13 00:30 UT (#883090-92)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

MCG +6-30-84 with SN 2021K - 2021-04-16 (T+104.6d)
Image below (2021-04-16.049) was taken 104.6 days after discovery of 2021K
Position of reported SN is shown by white cross hairs.
Measured magnitude +15.00 (SN + Galaxy Centre)
vs Host Galaxy Catalog Mag +15.29

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-04-16 01:19 UT (#886079-83)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

MCG +6-30-84 with SN 2021K - 2021-04-25 (T+114.5d)
Image below (2021-04-25.994) was taken 114.5 days after discovery of 2021K
Position of reported SN is shown by white cross hairs.
Measured magnitude +15.06 (SN + Galaxy Centre, Clear Filter)
vs Host Galaxy Catalog Mag +15.29
Poor quality image (due to bright sky background causing low S/N)

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-04-26 00:01 UT (#891069-73)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

MCG +6-30-84 / PGC 48870 with SN 2021K - 2022-01-02 (T+365.7d)
Image below (2022-01-02.224) was taken 365.7 days after discovery of 2021K
Position of earlier SN (now faded) is shown by white cross hairs.
Measured magnitude +15.5, SN + Galaxy Centre (fading)
vs Host Galaxy Catalog Mag +15.5

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-01-02 05:33 UT (#947273-77)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

MCG +6-30-84 / PGC 48870 with SN 2021K - 2022-02-05 (T+399.6d)
Image below (2022-02-05.099) was taken 399.6 days after discovery of 2021K
Position of earlier SN (now faded) is shown by white cross hairs.

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-02-05 02:33 UT (#963196-200)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021pc - Type Ia Supernova (discovered 2021-01-07) in UGC 784

UGC 784 with SN 2021pc Cetus)
SN 2021pc (Type: Ia) discovered 2021/01/07.160 UT by ZTF
Magnitude +18.3 at discovery
Alias: ZTF21aabpszb, Gaia21adm
(Rochester Supernova site | TNS | )

UGC 784 with SN 2021pc - 2021-01-11 (T+4.7d)
UGC 784 / PGC 4443 (catalog mag + 16.0)
Other galaxies in same FOV: PGC 1110475 (catalog mag + 16.8)

Annotated CCD Image (50% size, square root scale)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-01-11 21:21 UT (#848043-47)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021pc - Image sequence T+4.7d to T+264.0d
(SN discovery, T = 2021-01-07.160)

UGC 784 with SN 2021pc - 2021-01-11 (T+4.7d)
Image below (2021-01-11.883) was taken 4.7 days after discovery of SN 2021pc
SN is shown by white cross hairs. Measured Magnitude +16.3

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-01-11 21:21 UT (#848043-47)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 784 with SN 2021pc - 2021-01-12 (T+5.7d)
Image below (2021-01-12.815) was taken 5.7 days after discovery of 2021pc
SN is shown by white cross hairs. Measured Magnitude +16.2

Annotated CCD Image (125% size, square root scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2021-01-12 19:42 UT (#849033-37)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 784 with SN 2021pc - 2021-01-16 (T+9.7d)
Image below (2021-01-16.838) was taken 9.7 days after discovery of SN 2021pc
SN is shown by white cross hairs. Measured Magnitude +15.7

Annotated CCD Image (125% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-01-16 20:17 UT (#850067-70)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 784 with SN 2021pc - 2021-01-23 (T+16.6d)
Image below (2021-01-23.756) was taken 16.6 days after discovery of 2021pc
SN is shown by white cross hairs. Measured Magnitude +15.4

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-01-23 18:18 UT (#854003-07)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 784 with SN 2021pc - 2021-02-01 (T+25.6d)
Image below (2021-02-01.786) was taken 25.6 days after discovery of 2021pc
SN is shown by white cross hairs. Measured Magnitude +15.8

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-02-01 19:02 UT (#857020-24)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 784 with SN 2021pc - 2021-02-22 (T+46.6d)
Image below (2021-02-22.797) was taken 46.6 days after discovery of 2021pc
Very poor quality image. SN is shown by white cross hairs.
Unable to measure SN magnitude

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-02-22 19:16 UT (#861004-08)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 784 with SN 2021pc - 2021-09-28 (T+264.0d)
Image below (2021-09-28.122) was taken 264.0 days after discovery of 2021pc
No sign of earlier supernova
SN is presumed to have faded and is no longer visible

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-09-28 03:04 UT (#917272-76)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021nv - Type Ia Supernova (discovered 2021-01-07) in UGC 1436

UGC 1436 with SN 2021nv (Aries)
SN 2021nv (Type: Ia) discovered 2021/01/07.263 UT by ATLAS
Magnitude +17.8 at discovery
Alias: ATLAS21aqr
(Rochester Supernova site | Claudio Balcon image | )

UGC 1436 with SN 2021nv - 2021-01-11 (T+4.7d)

Annotated CCD Image (50% size, square root scale)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-01-11 21:42 UT (#848050-54)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 1436 with adjacent galaxies
UGC 1436 / PGC 7371 (catalog mag + 17.0)
PGC 7362 (catalog mag + 16.3), PGC 7391 (catalog mag ?)

Annotated CCD Image (100% size, square root scale, cropped)
Image details as above

SN 2021nv - Image sequence T+4.6d to T+50.6d
(SN discovery, T = 2021-01-07.263)

UGC 1436 with SN 2021nv - 2021-01-11 (T+4.6d)
Image below (2021-01-11.898) was taken 4.6 days after discovery of SN 2021nv
SN is shown by white cross hairs. Measured Magnitude +17.1

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-01-11 21:42 UT (#848050-54)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 1436 with SN 2021nv - 2021-01-12 (T+5.5d)
Image below (2021-01-12.768) was taken 5.5 days after discovery of 2021nv
SN is shown by white cross hairs. Measured Magnitude +16.8 (brightening)

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-01-12 18:36 UT (#849011-15)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 1436 with SN 2021nv - 2021-01-16 (T+9.5d)
Image below (2021-01-16.810) was taken 9.5 days after discovery of 2021nv
SN is shown by white cross hairs. Measured Magnitude +16.8 (brightening)

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-01-16 19:35 UT (#850037-41)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 1436 with SN 2021nv - 2021-01-18 (T+11.7d)
Image below (2021-01-18.965) was taken 11.7 days after discovery of 2021nv
SN is shown by white cross hairs. Measured Magnitude +16.3 (brightening)

Annotated CCD Image (150% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-01-18 23:20 UT (#852012-16)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 1436 with SN 2021nv - 2021-01-23 (T+16.6d)
Image below (2021-01-23.876) was taken 16.6 days after discovery of 2021nv
SN is shown by white cross hairs. Measured Magnitude +16.0 (near peak)

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-01-23 21:12 UT (#854119-23)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 1436 with SN 2021nv - 2021-01-25 (T+18.6d)
Image below (2021-01-25.835) was taken 18.6 days after discovery of 2021nv
SN is shown by white cross hairs. Measured Magnitude +16.1 (fading)

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-01-25 20:12 UT (#855036-40)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 1436 with SN 2021nv - 2021-02-01 (T+25.6d)
Image below (2021-02-01.829) was taken 25.6 days after discovery of 2021nv
SN is shown by white cross hairs. Measured Magnitude +16.3 (fading)

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-02-01 20:03 UT (#857064-68)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 1436 with SN 2021nv - 2021-02-10 (T+34.6d)
Image below (2021-02-10.869) was taken 34.6 days after discovery of 2021nv
SN is shown by white cross hairs. Measured Magnitude +16.9 (fading)

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-02-10 21:02 UT (#858029-33)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 1436 with SN 2021nv - 2021-02-22 (T+46.6d)
Image below (2021-02-22.855) was taken 46.6 days after discovery of 2021nv
SN position is shown by white cross hairs.
SN & UG 1436 barely visible above bright sky background

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-02-22 20:40 UT (#861045-49)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 1436 with SN 2021nv - 2021-02-26 (T+50.6d)
Image below (2021-02-26.816) was taken 50.6 days after discovery of 2021nv
SN position is shown by white cross hairs (fading)

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-02-26 19:45 UT (#864012-16)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 1436 with SN 2021nv - 2021-02-27 (T+51.6d)
Image below (2021-02-27.876) was taken 51.6 days after discovery of 2021nv
SN position is shown by white cross hairs.

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-02-27 21:12 UT (#865057-61)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 1436 with SN 2021nv - 2021-03-05 (T+57.6d)
Image below (2021-03-05.874) was taken 57.6 days after discovery of 2021nv
SN position is shown by white cross hairs.

Annotated CCD Image (150% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-03-05 21:09 UT (#867040-43)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 1436 with SN 2021nv - 2021-03-13 (T+65.6d)
Image below (2021-03-13.873) was taken 65.6 days after discovery of 2021nv
SN not visible (poor sky conditions & SN fading)

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-03-13 21:07 UT (#869019-23)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021xn - Type Ia Supernova (discovered 2021-01-10) in PGC 6041

SN 2021xn (Perseus)
Faint Galaxy (PGC 6041, SDSS J013751.16+533958.8, catalog mag +16.1)
with Type Ia Supernova
[ Supernovae ]

SN 2021xn (Type: Ia) discovered 2021/01/10.158 UT by ZTF
Alias: ZTF21aacvhsc
(Rochester Supernova site | Claudio Balcon image )

PGC 6041 with SN 2021xn - 2021-01-19 (T+8.9d)
SN is indicated by white cross hairs.

Annotated CCD Image (50% size, square root scale)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-01-19 02:16 UT (#852082-86)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021xn - Image sequence T+8.9d to T+71.8d
(SN discovery, T = 2021-01-10.158)

PGC 6041 with SN 2021xn - 2021-01-19 (T+8.9d)
Image below (2021-01-19.088) was taken 8.9 days after discovery of 2021xn
SN is shown by white cross hairs. Magnitude ?

Annotated CCD Image (150% size, log scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-01-19 02:16 UT (#852082-86)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

PGC 6041 with SN 2021xn - 2021-01-22 (T+12.6d)
Image below (2021-01-22.762) was taken 12.6 days after discovery of 2021xn
SN is shown by white cross hairs. Measured Magnitude +15.6
(magnitude based on WCS link on cropped image using GSC stars)
(too many stars for full frame WCS Link using UCAC stars)

Annotated CCD Image (150% size, log scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-01-22 18:26 UT (#853015-19)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

PGC 6041 with SN 2021xn - 2021-01-25 (T+15.7d)
Image below (2021-01-25.808) was taken 15.7 days after discovery of 2021xn
SN is shown by white cross hairs. Measured Magnitude +15.2 (brightening)
(magnitude based on WCS link on cropped image using GSC stars)
(too many stars for full frame WCS Link using UCAC stars)

Annotated CCD Image (150% size, log scale, cropped)
2 x 180s exposure (average combine), 3x3 binning, C Filter
2021-01-25 19:29 UT (#855015-16)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

PGC 6041 with SN 2021xn - 2021-01-31 (T+21.6d)
Image below (2021-01-31.801) was taken 21.6 days after discovery of 2021xn
SN is shown by white cross hairs. Measured Magnitude +15.7 (fading)
(magnitude based on WCS link on cropped image using GSC stars)
(too many stars for full frame WCS Link using UCAC stars)

Annotated CCD Image (150% size, log scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-01-31 19:23 UT (#856012-16)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

PGC 6041 with SN 2021xn - 2021-02-01 (T+22.6d)
Image below (2021-02-01.772) was taken 22.6 days after discovery of 2021xn
SN is shown by white cross hairs. Measured Magnitude +15.2 (brightening)
(magnitude based on WCS link on cropped image using GSC stars)
(too many stars for full frame WCS Link using UCAC stars)

Annotated CCD Image (150% size, log scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-02-01 18:40 UT (#857012-16)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

PGC 6041 with SN 2021xn - 2021-02-11 (T+31.9d)
Image below (2021-02-11.048) was taken 31.9 days after discovery of 2021xn
SN is shown by white cross hairs. Measured Magnitude +15.7 (fading)
(magnitude based on WCS link on cropped image using GSC stars)
(too many stars for full frame WCS Link using UCAC stars)

Annotated CCD Image (150% size, log scale, cropped)
180s exposure (single frame), 3x3 binning, C Filter
2021-02-11 01:12 UT (#858168)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

PGC 6041 with SN 2021xn - 2021-02-16 (T+37.8d)
Image below (2021-02-16.937) was taken 37.8 days after discovery of 2021xn
SN is shown by white cross hairs. Measured Magnitude +15.8 (fading)
(magnitude based on WCS link on cropped image using GSC stars)
(too many stars for full frame WCS Link using UCAC stars)

Annotated CCD Image (150% size, log scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-02-16 22:38 UT (#859109-13)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

PGC 6041 with SN 2021xn -2021-02-25 (T+46.0d)
Image below (2021-02-25.159) was taken 46.0 days after discovery of 2021xn
SN is shown by white cross hairs. Measured Magnitude ?
(too many stars for full frame WCS Link using UCAC stars)
Poor quality image

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-02-25 03:58 UT (#862064-68)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

PGC 6041 with SN 2021xn - 2021-02-25 (T+46.8d)
Image below (2021-02-25.926) was taken 46.8 days after discovery of 2021xn
SN is shown by white cross hairs. Measured Magnitude +16.3 SN (fading)
(magnitude based on WCS link on cropped image using GSC stars with x3 scale,
too many stars for full frame WCS Link using UCAC stars)

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-02-25 22:22 UT (#863076-80)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

PGC 6041 with SN 2021xn - 2021-02-27 (T+48.7d)
Image below (2021-02-27.891) was taken 48.7 days after discovery of 2021xn
SN is shown by white cross hairs. Measured Magnitude +16.3 (flat), Host +16.3
(magnitude based on WCS link on cropped image using GSC stars with x3 scale,
too many stars for full frame WCS Link using UCAC stars)

Annotated CCD Image (150% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-02-27 21:31 UT (#865064-67)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

PGC 6041 with SN 2021xn - 2021-03-11 (T+60.7d)
Image below (2021-03-11.888) was taken 60.7 days after discovery of 2021xn
No object is visible at SN's reported position (white circle)
(image was taken under poor sky conditions with wind & poor seeing)

Annotated CCD Image (150% size, square root scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2021-03-11 21:25 UT (#868042-44)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021xn - 2021-03-13 (T+62.8d)
Image below (2021-03-13.980) was taken 62.8 days after discovery of 2021xn
SN is shown by white cross hairs.

Annotated CCD Image (150% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-03-13 23:41 UT (#869085-89)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021xn - 2021-03-16 (T+65.8d)
Image below (2021-03-16.944) was taken 65.8 days after discovery of 2021xn
Position of earlier SN (indistinct) is shown by white cross hairs.

Annotated CCD Image (150% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-03-16 22:50 UT (#871061-65)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021xn - 2021-03-17 (T+66.7d)
Image below (2021-03-17.895) was taken 66.7 days after discovery of 2021xn
SN (indistinct) is shown by white cross hairs.
Poor quality image (developing cloud / single frame )

Annotated CCD Image (150% size, square root scale, cropped)
180s exposure (single frame), 3x3 binning, C Filter
2021-03-17 21:32 UT (#872018)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021xn - 2021-03-22 (T+71.8d)
Image below (2021-03-22.934) was taken 71.8 days after discovery of 2021xn
Position of earlier SN (faded) is shown by white cross hairs.
SN has faded and is almost unrecognisable

Annotated CCD Image (150% size, log scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-03-22 22:35 UT (#874056-60)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021apf - Type Ia Supernova (discovered 2021-01-16) in CGCG 056-009

CGCG 056-009 with SN 2021apf (Ophiuchus)
SN 2021apf (Type Ia, z=0.006531) discovered 2021/01/16.557 UT by ZTF
Alias: ZTF21aafdxca
(Rochester Supernova site | Fabio Feijo image | )

CGCG 056-009 with SN 2021apf
SN is shown by white cross hairs.
Measured magnitude +15.1 (SN + Galaxy Centre) vs Host Galaxy Catalog Mag +15.5

Annotated CCD Image (70% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-01-26 05:52 UT (#855294-98)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

CGCG 056-009 with SN 2021apf - 2021-01-26 (T+9.7d)
Image below (2021-01-26.238) was taken 9.7 days after discovery of 2021apf
Position of SN (distinct) is shown by white cross hairs.
Measured Magnitude ?

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-01-26 05:52 UT (#855294-98)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

CGCG 056-009 with SN 2021apf - 2021-03-06 (T+48.7d)
Image below (2021-03-06.216) was taken 48.7 days after discovery of 2021apf
SN is shown by white cross hairs.
Measured magnitude ? (fading)

Annotated CCD Image (150% size, square root scale, cropped)
180s exposure (single frame), 3x3 binning, C Filter
2021-03-06 05:14 UT (#867170)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

CGCG 056-009 with SN 2021apf - 2021-03-12 (T+54.6d)
Image below (2021-03-12.200) was taken 54.6 days after discovery of 2021apf
SN is shown by white cross hairs. Measured magnitude ?
(unable to extract SN properties using CCDSoft/Sextractor, object too faint)

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-03-12 04:57 UT (#868166-70)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

CGCG 056-009 with SN 2021apf - 2021-05-11 (T+114.5d)
Image below (2021-05-11.047) was taken 114.5 days after discovery of 2021apf
Position of SN (very faint) is shown by white cross hairs.
Estimated Magnitude +18.4 (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-05-11 01:17 UT (#897039-43)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021ass - Type II Supernova (discovered 2021-01-18) in NGC 684

NGC 684 with SN 2021ass (Triangulum)
Spiral Galaxy with Type II Supernova
[ Supernovae ]

SN 2021ass (Type: II) discovered 2021/01/18.145 UT by ZTF
Alias: ZTF21aafepon
(Rochester Supernova site | Giancarlo Cortini image )

NGC 684 with SN 2021ass - 2021-01-18 (T+0.8d)

Annotated CCD Image (50% size, square root scale)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2021-01-18 22:55 UT (#852004-07)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021ass - Image sequence T+0.8d to 23.8d
(SN discovery, T = 2021-01-18.145)

NGC 684 with SN 2021ass - 2021-01-18 (T+0.8d)
Image below (2021-01-18.949) was taken 0.8 days after discovery of 2021ass
SN is shown by white cross hairs. Magnitude ?

Annotated CCD Image (125% size, square root scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2021-01-18 22:55 UT (#852004-07)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 684 with SN 2021ass - 2021-01-22 (T+4.7d)
Image below (2021-01-22.885) was taken 4.7 days after discovery of 2021ass
SN is shown by white cross hairs. Magnitude ?

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-01-22 21:23 UT (#853142-46)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 684 with SN 2021ass - 2021-01-23 (T+5.8d)
Image below (2021-01-23.956) was taken 5.8 days after discovery of 2021ass
SN is shown by white cross hairs. Magnitude ?
Relatively poor quality image due to bright sky background

Annotated CCD Image (125% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-01-23 23:03 UT (#854180-83)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 684 with SN 2021ass - 2021-01-25 (T+7.7d)
Image below (2021-01-25.859) was taken 7.7 days after discovery of 2021ass
SN is shown by white cross hairs. Magnitude ?

Annotated CCD Image (125% size,square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-01-25 20:47 UT (#855052-56)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 684 with SN 2021ass - 2021-01-31 (T+13.6d)
Image below (2021-01-31.785) was taken 13.6 days after discovery of 2021ass
SN is shown by white cross hairs. Magnitude ?

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-01-31 19:00 UT (#856004-08)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 684 with SN 2021ass - 2021-02-10 (T+23.8d)
Image below (2021-02-10.942) was taken 23.8 days after discovery of 2021ass
SN is shown by white cross hairs. Magnitude ?

Annotated CCD Image (125% size,square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-02-10 22:46 UT (#858089-93)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021bge - Type II Supernova (discovered 2021-01-27) in UGC 2505

UGC 2505 with SN 2021bge (Cetus)
SN 2021bge (Type: II) discovered 2021/01/27.517 UT by Koichi Itagaki
Alias: ATLAS21dfn, Gaia21aqd
Discovery Magnitude 16.8 (Clear Filter)
vs Prior Non-Detection in DSS Image
Confirmed SN II
Gaia, 2021-02-05 00:41:24, Mag 16.74
Gaia, 2021-03-17 05:48:37, Mag 17.20
Gaia, 2021-03-21 11:52:04, Mag 17.23
Gaia, 2021-06-28 20:08:11, Mag 20.09
Gaia, 2021-07-18 08:13:24, Mag 20.42
Gaia, 2021-08-20 09:38:19, Mag 20.70
( Rochester Supernova site | Discovery Image )
( TNS 2021bge | Gaia21aqd )

UGC 2505 with SN 2021bge - 2021-01-31 (T+4.3d)
SN is shown by white cross hairs.

Annotated CCD Image (50% size, square root scale)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-01-31 20:57 UT (#856062-66)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

N2021bge - Image sequence T+4.3d to +312.4d
(SN discovery, T = 2021-01-27.517)

UGC 2505 with SN 2021bge - 2021-01-31 (T+4.3d)
Image below (2021-01-31.867) was taken 4.3 days after discovery of 2021bge
SN is shown by white cross hairs. Measured Magnitude +16.35

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-01-31 20:57 UT (#856062-66)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 2505 with SN 2021bge - 2021-02-01 (T+5.3d)
Image below (2021-02-01.856) was taken 5.3 days after discovery of 2021bge
SN is shown by white cross hairs. Measured Magnitude +16.4 (fading)

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-02-01 20:41 UT (#857084-88)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 2505 with SN 2021bge - 2021-02-16 (T+20.3d)
Image below (2021-02-16.818) was taken 20.3 days after discovery of 2021bge
SN is shown by white cross hairs. Measured Magnitude +16.5 (fading)

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-02-16 19:47 UT (#859013-17)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 2505 with SN 2021bge - 2021-02-22 (T+26.4d)
Image below (2021-02-22.872) was taken 26.4 days after discovery of 2021bge
SN position is shown by white circle Measured Magnitude ? (fading)
Poor quality image (SN hardly visible )

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-02-22 21:04 UT (#861053-57)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 2505 with SN 2021bge - 2021-02-26 (T+30.3d)
Image below (2021-02-26.858) was taken 30.3 days after discovery of 2021bge
SN position is shown by white circle Measured Magnitude ? (fading)
Poor quality image (SN poorly resolved )

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-02-26 20:44 UT (#864048-52)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 2505 with SN 2021bge - 2021-02-27 (T+31.3d)
Image below (2021-02-27.831) was taken 31.3 days after discovery of 2021bge
SN position is shown by white circle Measured Magnitude +16.6 (fading slowly)

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-02-27 20:06 UT (#865022-26)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 2505 with SN 2021bge - 2021-03-05 (T+37.3d)
Image below (2021-03-05.851) was taken 37.3 days after discovery of 2021bge
SN position is shown by white circle Measured Magnitude +16.7 (fading)

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-03-05 20:36 UT (#867020-24)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 2505 with SN 2021bge - 2021-10-25 (T+270.5d)
Image below (2021-10-25.048) was taken 270.5 days after discovery of 2021bge
Position of earlier SN (faded & no longer visible) is shown by white cross-hairs

Annotated CCD Image (125% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-10-25 01:16 UT (#927080-83)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 2505 - 2021-12-05 (T+312.4d)
Image below (2021-12-05.872) was taken 312.4 days after discovery of 2021bge
SN has long since faded and is no longer visible in image below
Image is for comparison with earlier images with SN
Although UGC 2505 is recorded in catalogs as an irregular galaxy,
it looks more like a spiral galaxy ?

Annotated CCD Image (125% size, square root scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2021-12-05 21:02 UT (#939096-98)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021biz - Type Ia Supernova (discovered 2021-01-29) in NGC 4227

NGC 4227 with SN 2021biz (Canes Venatici)
SN 2021biz (Type: Ia) discovered 2021/01/29.543 UT by ATLAS
Alias: ATLAS21dfz
Discovery Magnitude 18.33 (orange-ATLAS Filter)
( Rochester Supernova site | Gianluca Masi image | Jean-Claude Merlin image | TNS 2021biz )

NGC 4227 with SN 2021biz (T+3.6d)
NGC 4227 (catalog mag +12.8) with other galaxies in field of view :
NGC 4229 (catalog mag +13.3), PGC 39321 (catalog mag +17.0),
PGC 213959 (catalog mag +17.2), PGC 2034564 (catalog mag +17.8)
PGC 213960 (catalog mag +17.9), PGC 2035101 (catalog mag +18.0)

Annotated CCD Image (100% size, square root scale, cropped)
2 x 180s exposure (average combine), 3x3 binning, C Filter
2021-02-02 04:17 UT (#857284-88)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 4227 with SN 2021biz - Image sequence T+3.6d to T+64.4d
(SN discovery, T = 2021-01-29.543)

NGC 4227 with SN 2021biz - 2021-02-02 (T+3.6d)
Image below (2021-02-02.172) was taken 3.6 days after discovery of 2021biz
SN shown by white cross hairs. Measured magnitude +16.6 (brightening)

Annotated CCD Image (125% size, square root scale, cropped)
2 x 180s exposure (average combine), 3x3 binning, C Filter
2021-02-02 04:17 UT (#857284-88)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 4227 with SN 2021biz - 2021-02-10 (T+12.5d)
Image below (2021-02-10.996) was taken 12.5 days after discovery of 2021biz
SN shown by white cross hairs. Measured magnitude +15.7 (brightening)

Annotated CCD Image (125% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-02-11 00:04 UT (#858119-22)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 4227 with SN 2021biz - 2021-02-25 (T+26.6d)
Image below (2021-02-25.187) was taken 26.6 days after discovery of 2021biz
SN shown by white cross hairs. Measured magnitude +16.1 (fading)

Annotated CCD Image (125% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-02-25 04:36 UT (#862079-82)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 4227 with SN 2021biz - 2021-02-28 (T+29.5d)
Image below (2021-02-28.019) was taken 29.5 days after discovery of 2021biz
SN shown by white cross hairs. Measured magnitude +16.2 (fading)
(Image affected by offset light source)

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-02-28 00:36 UT (#865126-30)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 4227 with SN 2021biz - 2021-03-06 (T+35.6d)
Image below (2021-03-06.117) was taken 35.6 days after discovery of 2021biz
SN shown by white cross hairs. Measured magnitude +16.4 (fading)

Annotated CCD Image (125% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-03-06 02:56 UT (#867146-49)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 4227 with SN 2021biz - 2021-03-13 (T+43.4d)
Image below (2021-03-13.926) was taken 43.4 days after discovery of 2021biz
SN shown by white cross hairs. Measured magnitude +16.58

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-03-13 22:23 UT (#869057-61)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 4227 with SN 2021biz - 2021-03-14 (T+44.4d)
Image below (2021-03-14.954) was taken 44.4 days after discovery of 2021biz
SN shown by white cross hairs. Measured magnitude +16.58 (unchanged)

Annotated CCD Image (125% size, square root scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2021-03-14 23:01 UT (#870033-36)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 4227 with SN 2021biz - 2021-03-16 (T+46.4d)
Image below (2021-03-16.983) was taken 46.4 days after discovery of 2021biz
SN shown by white cross hairs. Measured magnitude +16.88 (unchanged)

Annotated CCD Image (125% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-03-16 23:47 UT (#871096-99)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 4227 with SN 2021biz - 2021-03-22 (T+51.5d)
Image below (2021-03-22.022) was taken 51.5 days after discovery of 2021biz
SN shown by white cross hairs. Measured magnitude +16.87

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-03-22 00:41 UT (#873035-39)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 4227 with SN 2021biz - 2021-03-23 (T+52.6d)
Image below (2021-03-23.128) was taken 52.6 days after discovery of 2021biz
SN shown by white cross hairs. Measured magnitude ? (fading)

Annotated CCD Image (125% size, square root scale, cropped)
2 x 180s exposure (average combine), 3x3 binning, C Filter
2021-03-23 03:09 UT (#874198-99)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 4227 with SN 2021biz - 2021-03-29 (T+59.4d)
Image below (2021-03-29.948) was taken 59.4 days after discovery of 2021biz
Postion of SN (faint) shown by white cross hairs.
Measured magnitude +17.25 (Clear Filter)

Annotated CCD Image (125% size, linear scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-03-29 22:52 UT (#877061-64)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 4227 with SN 2021biz - 2021-04-01 (T+62.4d)
Image below (2021-04-01.910) was taken 62.4 days after discovery of 2021biz
SN shown by white cross hairs.
Measured magnitude ? (fading ?)

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-04-01 22:00 UT (#879038-42)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 4227 with SN 2021biz - 2021-04-03 (T+64.4d)
Image below (2021-04-03.908) was taken 64.4 days after discovery of 2021biz
SN shown by white cross hairs.
Measured magnitude +17.3 (fading)

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-04-03 21:57 UT (#881040-44)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 4227 with SN 2021biz - 2021-04-12 (T+73.4d)
Image below (2021-04-12.913) was taken 73.4 days after discovery of 2021biz
SN shown by white cross hairs. Measured magnitude ?

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-04-12 22:04 UT (#883025-29)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 4227 with SN 2021biz - 2021-04-13 (T+74.4d)
Image below (2021-04-13.915) was taken 74.4 days after discovery of 2021biz
Position of SN (faint) is shown by white cross hairs.
Estimated Magnitude +17.3 (Clear Filter)

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-04-13 22:06 UT (#884043-47)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 4227 with SN 2021biz - 2021-04-15 (T+75.5d)
Image below (2021-04-15.001) was taken 75.5 days after discovery of 2021biz
Position of SN (faint) is shown by white cross hairs.
Measured Magnitude +17.01 (Clear Filter)

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-04-15 00:10 UT (#885072-76)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 4227 with SN 2021biz - 2021-04-16 (T+76.5d)
Image below (2021-04-16.019) was taken 76.5 days after discovery of 2021biz
Position of SN (faint) is shown by white cross hairs.
Measured Magnitude +17.20 (Clear Filter)

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-04-16 00:36 UT (#886064-68)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 4227 with SN 2021biz - 2021-04-16 (T+77.4d)
Image below (2021-04-16.944) was taken 77.4 days after discovery of 2021biz
Position of SN (faint) is shown by white cross hairs.
Estimated Magnitude +17.6 (Clear Filter)

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-04-16 22:49 UT (#887020-24)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 4227 with SN 2021biz - 2021-04-22 (T+82.5d)
Image below (2021-04-22.012) was taken 82.5 days after discovery of 2021biz
Position of SN (faint) is shown by white cross hairs.
Estimated Magnitude +17.8 (Clear Filter)

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-04-22 00:26 UT (#889034-38)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 4227 with SN 2021biz - 2021-04-24 (T+85.4d)
Image below (2021-04-24.990) was taken 85.4 days after discovery of 2021biz
Position of SN (faint) is shown by white cross hairs.
Poor quality image (bright sky background)

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-04-24 23:54 UT (#890044-48)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 4227 with SN 2021biz - 2021-04-25 (T+86.4d)
Image below (2021-04-25.910) was taken 86.4 days after discovery of 2021biz
Position of SN (faint) is shown by white cross hairs.
Estimated Magnitude +17.7 (Clear Filter)

Annotated CCD Image (125% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-04-25 21:57 UT (#891005-08)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 4227 with SN 2021biz - 2021-05-06 (T+97.5d)
Image below (2021-05-06.996) was taken 97.5 days after discovery of 2021biz
Position of SN (faint) is shown by white cross hairs.
Estimated Magnitude +18.1 (Clear Filter)

Annotated CCD Image (125% size, square root scale, cropped)
2 x 180s exposure (average combine), 3x3 binning, C Filter
2021-05-06 23:57 UT (#895019-20)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 4227 with SN 2021biz - 2022-02-04 (T+370.6d)
Image below (2022-02-04.109) was taken 370.6 days after discovery of 2021biz
Position of earlier SN (no longer visible) is shown by white cross hairs.

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-02-04 02:46 UT (#962053-57)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 4227 with SN 2021biz - 2022-02-09 (T+375.6d)
Image below (2022-02-09.113) was taken 375.6 days after discovery of 2021biz
Position of earlier SN (no longer visible) is shown by white cross hairs.

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-02-09 02:52 UT (#967149-53)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 4227 with SN 2021biz - 2022-02-10 (T+376.5d)
Image below (2022-02-10.089) was taken 376.5 days after discovery of 2021biz
Position of earlier SN (no longer visible) is shown by white cross hairs.

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-02-10 02:18 UT (#968200-04)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021bjy - Type Ia Supernova (discovered 2021-01-30) in CGCG 264-017

CGCG 264-017 with SN 2021bjy (Ursa Major)
SN 2021bjy (Type Ia, zhost=0.02749) discovered 2021/01/30.481 UT by ATLAS
Alias: ATLAS21dgz
( Rochester Supernova site | Odd Trondal image )

CGCG 264-017
CGCG 264-017 / PGC 24798 (catalog mag +15.4)
with other galaxies in same field of view
PGC 24783 (catalog mag 16.4), PGC 2384514 (catalog mag +17.7)

Annotated CCD Image (50% size, square root scale)
2 x 180s exposure (average combine), 3x3 binning, C Filter
2021-04-02 23:14 UT (#880004-05)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

CGCG 264-017 with SN 2021bjy - 2021-02-17 (T+17.6d)
Image below (2021-02-17.080) was taken 17.6 days after discovery of 2021bjy
SN is indicated by white cross-hairs. Measured magnitude +16.7 (transient)
(linked on x1.5 image)

Annotated CCD Image (150% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-02-17 02:02 UT (#859208-11)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

CGCG 264-017 with SN 2021bjy - 2021-02-25 (T+26.5d)
Image below (2021-02-25.980) was taken 26.5 days after discovery of 2021bjy
SN is indicated by white cross-hairs. Measured magnitude ? (fading)

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-02-25 23:40 UT (#863131-35)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

CGCG 264-017 with SN 2021bjy - 2021-04-02 (T+62.5d)
Image below (2021-04-02.965) was taken 62.5 days after discovery of 2021bjyz
SN is indicated by white cross-hairs. Measured magnitude ? (fading)

Annotated CCD Image (150% size, square root scale, cropped)
2 x 180s exposure (average combine), 3x3 binning, C Filter
2021-04-02 23:14 UT (#880004-05)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021bkw - Type Ia Supernova (discovered 2021-01-31) in LEDA 1634284

LEDA 1634284 with SN 2021bkw (Bootes)
SN 2021bkw (Type: Ia) discovered 2021/01/31.553 UT by ATLAS
Alias: ATLAS21dhp
[ Supernovae ]

(Rochester Supernova site | Gianluca Masi image )

LEDA 1634284 (Galaxy)
Alias PGC 1634284 (catalog mag +16.1)

Annotated CCD Image (50% size, square root scale)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-03-12 04:09 UT (#868119-22)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

LEDA 1634284 with SN 2021bkw - 2021-03-12 (T+39.6d)
Image below (2021-03-12.165) was taken 39.6 days after discovery of 2021bkw
Measured Magnitude +16.0 (SN + Host Galaxy Nucleus)

Annotated CCD Image (150% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-03-12 04:09 UT (#868119-22)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

LEDA 1634284 with SN 2021bkw - 2021-03-22 (T+49.6d)
Image below (2021-03-22.113) was taken 49.6 days after discovery of 2021bkw
Measured Magnitude +15.91 (SN + Host Galaxy Nucleus)

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-03-22 02:51 UT (#873076-80)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

LEDA 1634284 with SN 2021bkw - 2022-01-29 (T+362.6d)
Image below (2022-01-29.172) was taken 362.6 days after discovery of 2021bkw
Measured Magnitude +16.5 (SN + Host Galaxy Nucleus, faded)

Annotated CCD Image (150% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2022-01-29 04:15 UT (#961132-36)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021bug - Type II Supernova (discovered 2021-02-04) in NGC 4533 (Attempt)

NGC 4533 with SN 2021bug (Virgo)
SN 2021bug (Type: II) discovered 2021/02/04.413 UT by ZTF
Alias: ZTF21aagydmn, ATLAS21dqt
Discovery Magnitude 18.29
( Rochester Supernova site | TNS 2021bug )

NGC 4533 - Spiral Galaxy

Annotated CCD Image (50% size, square root scale)
2 x 180s exposure (average combine), 3x3 binning, C Filter
2022-02-06 03:42 UT (#964195-96)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 4533 with SN 2021bug - 2022-02-06 (T+366.7d)
Image below (2022-02-06.151) was taken 366.7 days after discovery of 2021bug
Reported position of earlier SN (not visible) is shown by white cross-hairs

Annotated CCD Image (125% size, square root scale, cropped)
2 x 180s exposure (average combine), 3x3 binning, C Filter
2022-02-06 03:42 UT (#964195-96)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 4533 with SN 2021bug - 2021-03-21 (T+45.6d)
Image below (2021-03-21.994) was taken 45.6 days after discovery of 2021bug
Reported position of SN (faint) is shown by white cross-hairs

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-03-22 00:02 UT (#873022-26)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 4533 with SN 2021bug - 2022-02-24 (T+384.6d)
Image below (2022-02-24.039) was taken 384.6 days after discovery of 2021bug
Reported position of earlier SN (not visible) is shown by white cross-hairs
Poor quality image due to bad seeing/wind shake

Annotated CCD Image (125% size, square root scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2022-02-24 01:08 UT (#976123-25)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2021bug (NGC 4533) on Supernovae 2021 Page >>

SN 2021cjd - Type IIP Supernova (discovered 2021-02-07) in NGC 4774

NGC 4774 with SN 2021cjd (Canes Venatici)
SN 2021cjd (Type: IIP) discovered 2021/02/07.491 UT by ZTF
Alias: ZTF21aajgdeu
Discovery Magnitude 20.23 (g-ZTF Filter)
( TNS 2021cjd )

NGC 4774 - Spiral Galaxy with SN 2021cjd (T+68.5d)
NGC 4774 (Kidney Bean Galaxy)
Ring Galaxy, J.Lowrey List
[ Ring Galaxies ]

Annotated CCD Image (50% size, square root scale)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-04-16 23:11 UT (#887028-32)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 4774 - Pre-SN (2020-02-02)
NGC 4774 (catalog mag +14.8)
with adjacent faint galaxy PGC 2087677 (catalog mag +17.2)

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2020-02-02 05:19 UT (#749304-08)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 4774 with AT 2021cjd - 2021-02-28 (T+20.6d)
Image below (2021-02-28.119) was taken 20.6 days after discovery of 2021cjd

Annotated CCD Image (50% size, square root scale)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-02-28 03:01 UT (#865191-95)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 4774 with SN 2021cjd - 2021-04-16 (T+68.5d)
Image below (2021-04-16.960) was taken 68.5 days after discovery of 2021cjd
Measured Magnitude (Nucleus+SN) +14.32 (Clear Filter)

NGC 4774 with SN 2021cjd - 2021-04-25 (T+77.5d)
Image below (2021-04-25.980) was taken 77.5 days after discovery of 2021cjd
Position of SN (faint / not separately visisble) is shown by white cross hairs.
Measured Magnitude +14.30 (SN + Galaxy Centre, Clear Filter)
Poor quality image (due to bright sky background causing low S/N)

Annotated CCD Image (50% size, square root scale)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2021-04-25 23:36 UT (#891061-63)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 4774 with AT2021cjd - 2022-02-04 (T+361.7d)
Image below (2022-02-04.152) was taken 361.7 days after discovery of 2021cjd
Position of earlier SN (faded?) is indicated by white cross-hairs

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-02-04 03:49 UT (#962075-79)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 4774 with SN 2021cjd - 2022-02-08 (T+365.6d)
Image below (2022-02-08.140) was taken 365.6 days after discovery of 2021cjd
Position of earlier supernova (faded?) is indicated by white cross-hairs

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-02-08 03:30 UT (#966095-99)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021cwc - Type Ia Supernova (discovered 2021-02-13) in UGC 3502

UGC 3502 with SN 2021cwc (Camelopardalis)
SN 2021cwc (Type Ia, z=0.021) discovered 2021/02/13.381 UT by ATLAS
Alias: ATLAS21flz
( Rochester Supernova site | Giancarlo Cortini image | Odd Trondal image )

UGC 3502 with SN 2021cwc - 2021-02-16 (T+3.5d)
SN lies close to nucleus of host galaxy

Annotated CCD Image (50% size, square root scale)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-02-16 21:02 UT (#859064-68)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 3502 with SN 2021cwc
Image sequence T+3.5d to T+49.5d
(SN discovery, T = 2021-02-13.381)

UGC 3502 with SN 2021cwc - 2021-02-16 (T+3.5d)
Image below (2021-02-16.870) was taken 3.5 days after discovery of 2021cwc
SN is shown by white cross hairs. Magnitude ?

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-02-16 21:02 UT (#859064-68)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 3502 with SN 2021cwc - 2021-02-18 (T+5.6d)
Image below (2021-02-18.973) was taken 5.6 days after discovery of 2021cwc
SN is shown by white cross hairs. Est Mag +16.3

Annotated CCD Image (150% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-02-18 23:30 UT (#860018-22)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 3502 with SN 2021cwc - 2021-02-25 (T+11.7d)
Image below (2021-02-25.092) was taken 11.7 days after discovery of 2021cwc
SN is shown by white cross hairs.

Annotated CCD Image (150% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-02-25 02:23 UT (#862019-23)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 3502 with SN 2021cwc - 2021-02-26 (T+12.6d)
Image below (2021-02-26.001) was taken 12.6 days after discovery of 2021cwc
SN is shown by white cross hairs. Measured Mag ?
(SN too faint to extract object properties using sextractor)

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-02-26 00:12 UT (#863148-52)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 3502 with SN 2021cwc - 2021-02-26 (T+13.5d)
Image below (2021-02-26.923) was taken 13.5 days after discovery of 2021cwc
SN is shown by white cross hairs. Measured Mag ?
(SN too faint to extract object properties using sextractor)

Annotated CCD Image (150% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-02-26 22:19 UT (#864099-103)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 3502 with SN 2021cwc - 2021-03-06 (T+20.7d)
Image below (2021-03-06.102) was taken 20.7 days after discovery of 2021cwc
SN is shown by white cross hairs. Measured Mag ?
(unable to resolve SN properties using sextractor)

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-03-06 02:36 UT (#867138-42)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 3502 with SN 2021cwc - 2021-03-14 (T+28.6d)
Image below (2021-03-14.003) was taken 28.6 days after discovery of 2021cwc
SN is shown by white cross hairs.

Annotated CCD Image (150% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-03-14 00:14 UT (#869102-05)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 3502 with SN 2021cwc - 2021-03-22 (T+37.5d)
Image below (2021-03-22.919) was taken 37.5 days after discovery of 2021cwc
SN is shown by white cross hairs. SN has faded but is still just visible.

Annotated CCD Image (150% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-03-22 22:12 UT (#874049-52)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 3502 with SN 2021cwc - 2021-03-24 (T+39.5d)
Image below (2021-03-24.894) was taken 39.5 days after discovery of 2021cwc
SN is shown by white cross hairs. SN has faded but is still just visible.

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-03-24 21:37 UT (#875027-31)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 3502 with SN 2021cwc - 2021-03-29 (T+44.5d)
Image below (2021-03-29.894) was taken 44.5 days after discovery of 2021cwc
Position of earlier SN (faded / not visible ) is shown by white cross hairs.

Annotated CCD Image (150% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-03-29 21:36 UT (#877036-40)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 3502 with SN 2021cwc - 2021-04-01 (T+47.5d)
Image below (2021-04-01.856) was taken 47.5 days after discovery of 2021cwc
SN is shown by white cross hairs. SN has faded but is still just visible.

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-04-01 20:42 UT (#879004-08)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 3502 with SN 2021cwc - 2021-04-03 (T+49.5d)
Image below (2021-04-03.863) was taken 49.5 days after discovery of 2021cwc
SN is shown by white cross hairs. SN has faded is barely visible.

Annotated CCD Image (150% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-04-03 20:51 UT (#881016-20)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021dnn - Type Ia Supernova (discovered 2021-02-22) in NGC 304

NGC 304 with SN 2021dnn (Andromeda)
[ Supernovae 2021 ]
SN 2021dnn (Type: Ia) discovered 2021/02/22.225 UT by ATLAS
Discovery Magnitude +18.3
Alias: ZTF21aabpszb, Gaia21adm
(Rochester Supernova site | TNS | )

NGC 304
Other galaxies in same field of view : PGC 3302(catalog mag +15.7)

Annotated CCD Image (50% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-02-22 20:21 UT (#861038-41)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 304 with SN 2021dnn
Image sequence T+0.6d to T+19.6d
(SN discovery, T = 2021-02-22.225)

NGC 304 with SN 2021dnn - 2021-02-22 (T+0.6d)
Image below (2021-02-22.840) was taken 0.6 days after discovery of 2021dnn
SN is shown by white cross hairs.

Annotated CCD Image (150% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-02-22 20:21 UT (#861038-41)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 304 with SN 2021dnn - 2021-02-25 (T+3.7d)
Image below (2021-02-25.894) was taken 3.7 days after discovery of 2021dnn
SN position is shown by white cross hairs.
Poor quality image - SN is not clearly resolved

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-02-25 21:36 UT (#863047-51)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 304 with SN 2021dnn - 2021-02-26 (T+4.6d)
Image below (2021-02-26.801) was taken 4.6 days after discovery of 2021dnn
SN position is shown by white cross hairs.
(unable to resolve SN using sextractor)

Annotated CCD Image (150% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-02-26 19:23 UT (#864004-08)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 304 with SN 2021dnn - 2021-02-27 (T+5.6d)
Image below (2021-02-27.815) was taken 5.6 days after discovery of 2021dnn
SN is shown by white cross hairs.
Measured magnitude ?
(unable to resolve SN using sextractor)

Annotated CCD Image (150% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-02-27 19:41 UT (#865014-17)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 304 with SN 2021dnn - 2021-03-05 (T+11.6d)
Image below (2021-03-05.836) was taken 11.6 days after discovery of 2021dnn
SN is shown by white cross hairs.
Measured magnitude ?
(unable to resolve SN using CCDSoft/Sextractor)

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-03-05 20:13 UT (#867011-15)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 304 with SN 2021dnn - 2021-03-11 (T+17.6d)
Image below (2021-03-11.852) was taken 17.6 days after discovery of 2021dnn
No object is visible at SN reported position (shown by white circle)
( image is single frame taken under poor sky conditions)

Annotated CCD Image (150% size, square root scale, cropped)
180s exposure (single frame), 3x3 binning, C Filter
2021-03-11 20:30 UT (#868020)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 304 with SN 2021dnn - 2021-03-13 (T+19.6d)
Image below (2021-03-13.839) was taken 19.6 days after discovery of 2021dnn
SN position is shown by white circle.
No object is visible at SN's reported position (white circle)

Annotated CCD Image (150% size, square root scale, cropped)
2 x 180s exposure (average combine), 3x3 binning, C Filter
2021-03-13 20:13 UT (#869003-04)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2021dnn (NGC 304) on Supernovae 2021 Page >>

SN 2021dwg - Type Ic Supernova (discovered 2021-02-27) in IC 992

IC 992 with SN 2021dwg (Virgo)
SN 2021dwg (Type: Ic) discovered 2021/02/27.420 UT by ZTF
Alias: ZTF21aannoix
Magnitude +18.44 at discovery
(Rochester Supernova site | TNS SN 2021dwg | ZTF21aannoix Notes)

[ Supernovae 2021 ]

IC 992 with SN 2021dwg - 2021-03-27 (T+27.7d)

Annotated CCD Image (50% size, square root scale)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-03-27 02:27 UT (#876022-25)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

IC 992 with SN 2021dwg
Image sequence T+0.7d to T+33.6d
(SN discovery, T = 2021-02-27.420)

IC 992 with SN 2021dwg - 2021-02-28 (T+0.7d)
Image below (2021-02-28.081) was taken just 0.7 days after discovery of 2021dwg
No indication of an object at reported SN position (shown by white circle)
SN might still be too faint (SN only +18.44 at discovery just hours beforehand)
and/or or image quality is too poor (due to sub-optimal sky conditions)
(SN is however easily visible in a later image taken 6.7 days after SN discovery)

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-02-28 02:06 UT (#865167-71)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

IC 992 with SN 2021dwg - 2021-03-06 (T+6.7d)
Image below (2021-03-06.086) was taken 6.7 days after discovery of 2021dwg
SN shown by white cross-hairs. Measured magnitude +17.6

Annotated CCD Image (125% size, square root scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2021-03-06 02:10 UT (#867130-32)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

IC 992 with SN 2021dwg - 2021-03-14 (T+14.7d)
Image below (2021-03-14.169) was taken 14.7 days after discovery of 2021dwg
Position of SN (distinct) is shown by white cross-hairs
Measured magnitude +17.46

Annotated CCD Image (125% size, square root scale, cropped)
2 x 180s exposure (average combine), 3x3 binning, C Filter
2021-03-14 04:09 UT (#869185-86)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

IC 992 with SN 2021dwg - 2021-03-22 (T+22.7d)
Image below (2021-03-22.099) was taken 22.7 days after discovery of 2021dwg
Position of SN (distinct) is shown by white cross-hairs
Measured magnitude +17.39

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-03-22 02:31 UT (#873069-73)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

IC 992 with SN 2021dwg - 2021-03-27 (T+27.7d)
Image below (2021-03-27.097) was taken 27.7 days after discovery of 2021dwg

Annotated CCD Image (125% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-03-27 02:27 UT (#876022-25)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

IC 992 with SN 2021dwg - 2021-04-02 (T+33.6d)
Image below (2021-04-02.018) was taken 33.6 days after discovery of 2021dwg

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-04-02 00:35 UT (#879097-101)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

IC 992 with SN 2021dwg - 2021-04-13 (T+44.7d)
Image below (2021-04-13.078) was taken 44.7 days after discovery of 2021dwg
Position of SN (faint) is shown by white cross-hairs
Estimated Magnitude +18.4 (Clear Filter)

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-04-13 02:01 UT (#883133-37)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

IC 992 with SN 2021dwg - 2021-04-14 (T+45.6d)
Image below (2021-04-14.066) was taken 45.6 days after discovery of 2021dwg
Position of SN (very faint) is shown by white cross-hairs

Annotated CCD Image (125% size, square root scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2021-04-14 01:40 UT (#884157-59)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

IC 992 with SN 2021dwg - 2021-04-15 (T+46.6d)
Image below (2021-04-15.032) was taken 46.6 days after discovery of 2021dwg
Position of SN (very faint) is shown by white cross-hairs
Estimated Magnitude +18.1 (Clear Filter)

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-04-15 00:55 UT (#885088-92)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

IC 992 with SN 2021dwg - 2021-04-16 (T+47.6d)
Image below (2021-04-16.008) was taken 47.6 days after discovery of 2021dwg
Position of SN (very faint) is shown by white cross-hairs
Estimated Magnitude +18.5 (Clear Filter)

Annotated CCD Image (125% size, square root scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2021-04-16 00:17 UT (#886058-60)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

IC 992 with SN 2021dwg - 2021-04-17 (T+48.6d)
Image below (2021-04-17.007) was taken 48.6 days after discovery of 2021dwg
Position of SN (very faint) is shown by white cross-hairs
Estimated Magnitude +18.3 (Clear Filter)

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-04-17 00:19 UT (#887053-57)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

IC 992 with SN 2021dwg - 2021-04-25 (T+56.6d)
Image below (2021-04-25.004) was taken 56.6 days after discovery of 2021dwg
Position of SN (not visible) is shown by white cross-hairs
Poor quality image (due to bright sky background, low S/N)

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-04-25 00:15 UT (#890052-56)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

IC 992 with SN 2021dwg - 2021-12-18 (T+293.9d)
Image below (2021-12-18.283) was taken 293.9 days after discovery of 2021dwg
Position of earlier SN (no longer visible) is shown by white circle.

Annotated CCD Image (125% size, square root scale, cropped)
2 x 180s exposure (average combine), 3x3 binning, C Filter
2021-12-18 06:51 UT (#943134-35)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021foa - Type IIn Supernova (discovered 2021-03-15) in IC 863

IC 863 with SN 2021foa (Virgo)
SN 2021foa (Type: IIn) discovered 2021/03/15.450 UT by ASAS-SN
Alias: ASASSN-21dg
Discovery Magnitude 15.9 (g-Sloan Filter)
vs Prior Non-Detection Limiting Magnitude 17.9
( Rochester Supernova site | Discovery Image | TNS 2021foa )

Annotated CCD Image (50% size, square root scale)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-03-23 01:56 UT (#874170-74)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

IC 863 with SN 2021foa
Image sequence T+6.6d to T+19.6d
(SN discovery, T = 2021-03-15.450)

IC 863 with SN 2021foa - 2021-03-22 (T+6.6d)
Image below (2021-03-22.010) was taken 6.6 days after discovery of 2021foa
SN is indicated by white cross-hairs.
Measured magnitude +15.02 (for SN)

Annotated CCD Image (150% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-03-22 00:22 UT (#873030-33)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

IC 863 with SN 2021foa - 2021-03-23 (T+7.6d)
Image below (2021-03-23.074) was taken 7.6 days after discovery of 2021foa
SN is indicated by white cross-hairs.
Measured magnitude ? (+14.7 for SN & nucleus combined)

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-03-23 01:56 UT (#874170-74)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

IC 863 with SN 2021foa - 2021-04-02 (T+17.6d)
Image below (2021-04-02.003) was taken 17.6 days after discovery of 2021foa
SN is indicated by white cross-hairs.
Measured magnitude +15.1 (nucleus +14.7)

Annotated CCD Image (150% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-04-02 00:14 UT (#879090-94)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

IC 863 with SN 2021foa - 2021-04-04 (T+19.6d)
Image below (2021-04-04.054) was taken 19.6 days after discovery of 2021foa
SN is indicated by white cross-hairs.
Measured magnitude +14.9

Annotated CCD Image (150% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-04-04 01:29 UT (#881113-16)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

IC 863 with SN 2021foa - 2021-04-13 (T+28.6d)
Image below (2021-04-13.063) was taken 28.6 days after discovery of 2021foa
SN is indicated by white cross-hairs.
Estimated Magnitude +15.5 (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-04-13 01:39 UT (#883124-28)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

IC 863 with SN 2021foa - 2021-04-14 (T+29.6d)
Image below (2021-04-14.006) was taken 29.6 days after discovery of 2021foa
SN is indicated by white cross-hairs.
Estimated Magnitude +15.3 (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-04-14 00:15 UT (#884094-97)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

IC 863 with SN 2021foa - 2021-04-15 (T+30.6d)
Image below (2021-04-15.017) was taken 30.6 days after discovery of 2021foa
SN is indicated by white cross-hairs.
Measured Magnitude +15.08 (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-04-15 00:32 UT (#885080-84)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

IC 863 with SN 2021foa - 2021-04-16 (T+32.5d)
Image below (2021-04-16.992) was taken 32.5 days after discovery of 2021foa
SN is indicated by white cross-hairs.
Estimated Magnitude +15.4 (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-04-16 23:57 UT (#887045-49)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

IC 863 with SN 2021foa - 2021-04-21 (T+36.6d)
Image below (2021-04-21.043) was taken 36.6 days after discovery of 2021foa
SN is indicated by white cross-hairs.
Estimated Magnitude +15.5 (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-04-21 01:09 UT (#888050-53)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021fxy - Type Ia Supernova (discovered 2021-03-17) in NGC 5018

NGC 5018 with SN 2021fxy (Virgo)
SN 2021fxy (Type: Ia) discovered 2021/03/17.725 UT by Koichi Itagaki
Discovery Magnitude 16.9 (Clear Filter)
vs Prior Non-Detection in DSS Image
( Rochester Supernova site | Discovery Image | Paolo Campaner image )
( TNS 2021fxy )

NGC 5018 - Elliptical Galaxy with SN 2021fxy - 2021-03-23 (T+5.3d)
SN 2021fxy is indicated by white cross-hairs.

Annotated CCD Image (50% size, square root scale)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-03-23 01:34 UT (#874164-67)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 5018 with SN 2021fxy
Image sequence T+4.4d to T+406.2d
(SN discovery, T = 2021-03-17.725)

NGC 5018 with SN 2021fxy - 2021-03-22 (T+4.4d)
Image below (2021-03-22.084) was taken 4.4 days after discovery of 2021fxy
SN is indicated by white cross-hairs.
Measured Magnitude + 14.61

Annotated CCD Image (100% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-03-22 02:10 UT (#873062-66)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 5018 with SN 2021fxy - 2021-03-23 (T+5.3d)
Image below (2021-03-23.058) was taken 5.3 days after discovery of SN 2021fxy
SN is indicated by white cross-hairs.
Measured Magnitude + 14.5

Annotated CCD Image (100% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-03-23 01:34 UT (#874164-67)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 5018 with SN 2021fxy - 2021-04-01 (T+14.3d)
Image below (2021-04-01.010) was taken 14.3 days after discovery of 2021fxy
SN is indicated by white cross-hairs.
Measured Magnitude + 13.8 (Clear Filter)

Annotated CCD Image (100% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-04-01 00:24 UT (#878018-22)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 5018 with SN 2021fxy - 2021-04-04 (T+17.3d)
Image below (2021-04-04.024) was taken 17.3 days after discovery of 2021fxy
SN is indicated by white cross-hairs.
Measured Magnitude + 13.9 (Clear Filter)

Annotated CCD Image (100% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-04-04 00:44 UT (#881104-08)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 5018 with SN 2021fxy - 2021-04-12 (T+26.3d)
Image below (2021-04-12.983) was taken 26.3 days after discovery of 2021fxy
SN is indicated by white cross-hairs.
Measured Magnitude + 14.07 (Clear Filter)

Annotated CCD Image (100% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-04-12 23:45 UT (#883075-79)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 5018 with SN 2021fxy - 2021-04-13 (T+27.2d)
Image below (2021-04-13.966) was taken 27.2 days after discovery of 2021fxy
SN is indicated by white cross-hairs.
Measured Magnitude + 14.23 (Clear Filter)

Annotated CCD Image (100% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-04-13 23:20 UT (#884073-77)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 5018 with SN 2021fxy - 2021-04-14 (T+28.2d)
Image below (2021-04-14.972) was taken 28.2 days after discovery of 2021fxy
SN is indicated by white cross-hairs.
Measured Magnitude + 14.26 (Clear Filter)

Annotated CCD Image (100% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-04-14 23:27 UT (#885056-60)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 5018 with SN 2021fxy - 2021-04-16 (T+29.3d)
Image below (2021-04-16.035) was taken 29.3 days after discovery of 2021fxy
SN is indicated by white cross-hairs.
Measured magnitude + 14.38 (Clear Filter)

Annotated CCD Image (100% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-04-16 00:58 UT (#886072-76)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 5018 with SN 2021fxy - 2021-04-16 (T+30.3d)
Image below (2021-04-16.975) was taken 30.3 days after discovery of 2021fxy
SN is indicated by white cross-hairs.
Measured Magnitude + 14.59 (Clear Filter)

Annotated CCD Image (100% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-04-16 23:33 UT (#887036-40)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 5018 with SN 2021fxy - 2021-04-21 (T+34.3d)
Image below (2021-04-21.027) was taken 34.3 days after discovery of 2021fxy
SN is indicated by white cross-hairs.
Measured Magnitude + 14.57 (Clear Filter)

Annotated CCD Image (100% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-04-21 00:46 UT (#888043-46)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 5018 with SN 2021fxy - 2021-04-21 (T+35.3d)
Image below (2021-04-21.979) was taken 35.3 days after discovery of 2021fxy
SN is indicated by white cross-hairs.
Measured Magnitude + 14.65 (Clear Filter)

Annotated CCD Image (100% size, square root scale, cropped)
2 x 180s exposure (average combine), 3x3 binning, C Filter
2021-04-21 23:33 UT (#889021-22)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 5018 with SN 2021fxy - 2021-05-05 (T+49.2d)
Image below (2021-05-05.974) was taken 49.2 days after discovery of 2021fxy
SN is indicated by white cross-hairs.
Estimated Magnitude + 14.9 (Clear Filter)

Annotated CCD Image (100% size, square root scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2021-05-05 23:27 UT (#894035-37)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 5018 with SN 2021fxy - 2022-01-14 (T+302.5d)
Image below (2022-01-14.235) was taken 302.5 days after discovery of 2021fxy
Position of earlier SN (faded/no longer visible) is shown by white cross-hairs.

Annotated CCD Image (100% size, square root scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2022-01-14 05:47 UT (#954098-102)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 5018 with SN 2021fxy - 2022-04-27 (T+406.2d)
Image below (2022-04-27.970) was taken 406.2 days after discovery of 2021fxy
Position of earlier SN (faded/no longer visible) is indicated by white cross-hairs.

Annotated CCD Image (100% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-04-27 23:27 UT (#1004034-38)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021gmh - Type Ia Supernova (discovered 2021-03-19) in SDSS J223433.36+340019.1

SDSS J223433.36+340019.1 with SN 2021gmh (Pegasus)
SN 2021gmh (Type: Ia) discovered 2021/03/19.536 UT by ZTF
Alias: ZTF21aaqftpz
(Rochester Supernova site )

Position of SDSS Galaxy with Supernova (faint) is shown by white circle

Annotated CCD Image (50% size, square root scale)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-09-27 22:31 UT (#917128-32)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021gmh - 2021-09-20 (T+184.5d)
Image below (2021-09-20.050) was taken 184.5 days after discovery of 2021gmh
Galaxy with Supernova (faint) is shown by white cross-hairs

Annotated CCD Image (150% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-09-20 01:19 UT (#914109-12)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021gmh - 2021-09-21 (T+186.4d)
Image below (2021-09-21.967) was taken 186.4 days after discovery of 2021gmh
Galaxy with Supernova (not visible) is shown by white cross-hairs

Annotated CCD Image (150% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-09-21 23:20 UT (#915165-68)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021gmh - 2021-09-27 (T+192.4d)
Image below (2021-09-27.931) was taken 192.4 days after discovery of 2021gmh
Galaxy with Supernova (faint) is shown by white cross-hairs

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-09-27 22:31 UT (#917128-32)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Negative CCD Image (150% size, square root scale, cropped)
Image details as above

SN 2021gno - Type II Supernova (discovered 2021-03-20) in NGC 4165

NGC 4165 with SN 2021gno (Virgo)
SN 2021gno (Type: II) discovered 2021/03/20.235 UT by ZTF
Alias: ZTF21aaqhhfu
( Rochester Supernova site | Claudio Balcon image | Giancarlo Cortini image )

NGC 4165
NGC 4165 / PGC 38885 (catalog mag +14.7) with
NGC 4168 (catalog mag +11.2) & NGC 4164 (catalog mag +15.7)

Annotated CCD Image (50% size, square root scale)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-04-01 22:43 UT (#879054-58)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 4165 - Detail
NGC 4165 / PGC 38885 (catalog mag +14.7) with
PGC 1426623 (catalog mag +17.4)

Annotated CCD Image (50% size, square root scale)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2022-01-06 03:30 UT (#949084-87)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 4165 with SN 2021gno
Image sequence T+12.7d to +14.7d
(SN discovery, T = 2021-03-20.235

NGC 4165 with SN 2021gno - 2021-04-01 (T+12.7d)
Image below (2021-04-01.940) was taken 12.7 days after discovery of 2021gno
SN is shown by white cross hairs.

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-04-01 22:43 UT (#879054-58)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 4165 with SN 2021gno - 2021-04-03 (T+14.7d)
Image below (2021-04-03.893) was taken 14.7 days after discovery of 2021gno
SN is shown by white cross hairs. Magnitude +16.7

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-04-03 21:36 UT (#881032-36)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 4165 with SN 2021gno - 2021-04-12 (T+23.7d)
Image below (2021-04-12.888) was taken 23.7 days after discovery of 2021gno
SN is shown by white cross hairs.
Measured Magnitude +17.28

Annotated CCD Image (125% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-04-12 21:27 UT (#883012-15)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 4165 with SN 2021gno - 2021-04-14 (T+24.8d)
Image below (2021-04-14.037) was taken 24.8 days after discovery of 2021gno
Position of SN (very faint) is shown by white cross hairs
Poor quality image (poor sky transparency, uneven sky background, )

Annotated CCD Image (125% size, square root scale, cropped)
2 x 180s exposure (average combine), 3x3 binning, C Filter
2021-04-14 00:58 UT (#884130-32)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 4165 with SN 2021gno - 2021-04-14 (T+25.7d)
Image below (2021-04-14.956) was taken 25.7 days after discovery of 2021gno
Position of SN (faint) is shown by white cross hairs
Estimated Magnitude +17.4 (Clear Filter)

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-04-14 23:05 UT (#885048-52)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 4165 with SN 2021gno - 2021-04-22 (T+32.8d)
Image below (2021-04-22.003) was taken 32.8 days after discovery of 2021gno
Position of SN (faint) is shown by white cross hairs
Estimated Magnitude +17.7 (Clear Filter)
Poor quality image (poor sky conditions)

Annotated CCD Image (125% size, square root scale, cropped)
2 x 180s exposure (average combine), 3x3 binning, C Filter
2021-04-22 00:08 UT (#889031-32)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 4165 with SN 2021gno - 2021-04-30 (T+41.7d)
Image below (2021-04-30.915) was taken 41.7 days after discovery of 2021gno
Position of SN (very faint) is shown by white cross hairs
Estimated Magnitude +18.0 (Clear Filter)

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-04-30 22:07 UT (#893010-14)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 4165 with SN 2021gno - 2021-05-05 (T+46.7d)
Image below (2021-05-05.958) was taken 46.7 days after discovery of 2021gno
Position of SN (very faint) is shown by white cross hairs
Estimated Magnitude +18.1 (Clear Filter)

Annotated CCD Image (125% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-05-05 23:06 UT (#894028-31)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 4165 with SN 2021gno - 2021-05-06 (T+47.7d)
Image below (2021-05-06.981) was taken 47.7 days after discovery of 2021gno
Position of SN (very faint) is shown by white cross hairs
Estimated Magnitude +18.2 (Clear Filter)

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-05-06 23:41 UT (#895012-16)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 4165 with SN 2021gno - 2021-05-07 (T+48.8d)
Image below (2021-05-07.999) was taken 48.8 days after discovery of 2021gno
Position of SN (very faint) is shown by white cross hairs
Estimated Magnitude +18.1 (Clear Filter)

Annotated CCD Image (125% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-05-08 00:05 UT (#896004-07)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 4165 with SN 2021gno - 2022-01-02 (T+288.0d)
Image below (2022-01-02.197) was taken 288.0 days after discovery of 2021gno
Position of earlier SN (no longer visible) is shown by white cross hairs.

Annotated CCD Image (125% size, square root scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2022-01-02 04:53 UT (#947260-64)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 4165 with SN 2021gno - 2022-01-06 (T+291.9d)
Image below (2022-01-06.140) was taken 291.9 days after discovery of 2021gno
Position of earlier SN (no longer visible) is shown by white cross hairs.

Annotated CCD Image (125% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2022-01-06 03:30 UT (#949084-87)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 4165 with SN 2021gno - 2022-01-08 (T+293.9d)
Image below (2022-01-08.101) was taken 293.9 days after discovery of 2021gno
Position of earlier SN (no longer visible) is shown by white cross hairs.

Annotated CCD Image (125% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2022-01-08 02:34 UT (#950197-200)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 4165 with SN 2021gno - 2022-01-09 (T+294.9d)
Image below (2022-01-09.179) was taken 294.9 days after discovery of 2021gno
Position of earlier SN (no longer visible) is shown by white cross hairs.

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-01-09 04:27 UT (#951087-91)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 4165 with SN 2021gno - 2022-02-10 (T+326.8d)
Image below (2022-02-10.072) was taken 326.8 days after discovery of 2021gno
Position of earlier SN (no longer visible) is shown by white cross hairs.

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-02-10 01:53 UT (#968193-97)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 4165 with SN 2021gno - 2022-02-11 (T+327.8d)
Image below (2022-02-11.056) was taken 327.8 days after discovery of 2021gno
Position of earlier SN (no longer visible) is shown by white cross hairs.

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-02-11 01:30 UT (#969058-62)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021gmj - Type II Supernova (discovered 2021-03-20) in NGC 3310 (Herschel IV-60)

NGC 3310 / Herschel IV-60 with SN 2021gmj (Ursa Major)
SN 2021gmj (Type: II) discovered 2021/03/20.320 UT by DLT40
Alias: ZTF21aaqgmjt, ATLAS21izq
Discovery Magnitude 15.98 (r-Sloan Filter)
( Rochester Supernova site | Gianluca Masi image | TNS 2021gmj )
[ Herschel 400 Objects ]

NGC 3310 (Herschel IV-60) - Spiral Galaxy with SN 2021gmj
SN position indicated by white cross-hairs

Annotated CCD Image (50% size, log scale)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-03-24 22:07 UT (#875043-47)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 3310 with SN 2021gmj
Image sequence T+4.6d to +14.6d
(SN discovery, T = 2021-03-20.320)

NGC 3310 - Pre-Supernova Image (2013)

CCD Image (100% size, square root scale, cropped)
5 x 90 sec exposure (average combine), 3x3 binning, C filter,
2013-04-05 21:37h UT (#545080-84)
12" LX200R (at f/9.7) + ST-10XME

NGC 3310 with SN 2021gmj - 2021-03-24 (T+4.6d)
Image below (2021-03-24.915) was taken 4.6 days after discovery of 2021gmj
SN position indicated by white cross-hairs

Annotated CCD Image (100% size, log scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-03-24 22:07 UT (#875043-47)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 3310 with SN 2021gmj - 2021-03-29 (T+9.6d)
Image below (2021-03-29.917) was taken 9.6 days after discovery of 2021gmj
SN position indicated by white cross-hairs
Poor quality image (affected by wind shake/poor seeing)

Annotated CCD Image (100% size, log scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2021-03-29 22:13 UT (#877050-52)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 3310 with SN 2021gmj - 2021-04-01 (T+12.6d)
Image below (2021-04-01.896) was taken 12.6 days after discovery of 2021gmj
SN position indicated by white cross-hairs

Annotated CCD Image (100% size, log scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-04-01 21:39 UT (#879031-35)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 3310 with SN 2021gmj - 2021-04-01 (T+11.7d)
Image below (2021-04-01.026) was taken 11.7 days after discovery of 2021gmj
SN position indicated by white cross-hairs. Magnitude ?

Annotated CCD Image (100% size, log scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-04-01 00:45 UT (#878026-29)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 3310 with SN 2021gmj - 2021-04-03 (T+14.6d)
Image below (2021-04-03.878) was taken 14.6 days after discovery of 2021gmj
SN position indicated by white cross-hairs

Annotated CCD Image (100% size, log scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-04-03 21:14 UT (#881024-28)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 3310 with SN 2021gmj - 2021-04-11 (T+22.6d)
Image below (2021-04-11.926) was taken 22.6 days after discovery of 2021gmj
SN position indicated by white cross-hairs

CCD Image (100% size, log scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2021-04-11 22:19 UT (#882022-24)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 3310 with SN 2021gmj - 2021-04-12 (T+23.6d)
Image below (2021-04-12.875) was taken 23.6 days after discovery of 2021gmj
SN position indicated by white cross-hairs

CCD Image (100% size, log scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-04-12 21:08 UT (#883005-08)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 3310 with SN 2021gmj - 2021-04-13 (T+24.7d)
Image below (2021-04-13.990) was taken 24.7 days after discovery of 2021gmj
Position of SN (faint) is indicated by white cross-hairs

CCD Image (100% size, log scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-04-13 23:55 UT (#884087-91)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 3310 with SN 2021gmj - 2021-04-14 (T+25.6d)
Image below (2021-04-14.915) was taken 25.6 days after discovery of 2021gmj
Position of SN (faint) is indicated by white cross-hairs

CCD Image (100% size, log scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-04-14 22:06 UT (#885024-28)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 3310 with SN 2021gmj - 2021-04-15 (T+26.6d)
Image below (2021-04-15.914) was taken 26.6 days after discovery of 2021gmj
Position of SN (faint) is indicated by white cross-hairs
Estimated Magnitude +15.0 (Clear Filter)

CCD Image (100% size, log scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-04-15 22:05 UT (#886025-29)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 3310 with SN 2021gmj - 2021-04-21 (T+31.7d)
Image below (2021-04-21.001) was taken 31.7 days after discovery of 2021gmj
Position of SN (faint) is indicated by white cross-hairs
Estimated Magnitude +15.0 (Clear Filter)
Poor quality image (bright sky background, single frame)

CCD Image (100% size, log scale, cropped)
180s exposure (single frame), 3x3 binning, C Filter
2021-04-21 00:02 UT (#888033)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 3310 with SN 2021gmj - 2021-04-21 (T+32.6d)
Image below (2021-04-21.943) was taken 32.6 days after discovery of 2021gmj
Position of SN (faint) is indicated by white cross-hairs
Estimated Magnitude +14.8 (Clear Filter)
Target not centered due to a TheSky6 issue

CCD Image (100% size, log scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-04-21 22:45 UT (#889005-08)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 3310 with SN 2021gmj - 2021-04-25 (T+35.7d)
Image below (2021-04-25.033) was taken 35.7 days after discovery of 2021gmj
Position of SN (faint) is indicated by white cross-hairs
Estimated Magnitude +14.8 (Clear Filter)

CCD Image (100% size, log scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2021-04-25 00:52 UT (#890069-71)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 3310 with SN 2021gmj - 2021-04-25 (T+36.6d)
Image below (2021-04-25.953) was taken 36.6 days after discovery of 2021gmj
Position of SN (faint) is indicated by white cross-hairs
Estimated Magnitude +14.7 (Clear Filter)

CCD Image (100% size, log scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-04-25 23:02 UT (#891045-49)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 3310 with SN 2021gmj - 2021-05-01 (T+41.7d)
Image below (2021-05-01.001) was taken 41.7 days after discovery of 2021gmj
Position of SN (faint) is indicated by white cross-hairs
Estimated Magnitude +14.7 (Clear Filter)

CCD Image (100% size, log scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-05-01 00:09 UT (#893044-48)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 3310 with SN 2021gmj - 2021-05-05 (T+46.6d)
Image below (2021-05-05.914) was taken 46.6 days after discovery of 2021gmj
Position of SN (faint) is indicated by white cross-hairs
Estimated Magnitude +14.8 (Clear Filter)

CCD Image (100% size, log scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-05-05 22:05 UT (#894002-06)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 3310 with SN 2021gmj - 2021-05-06 (T+47.6d)
Image below (2021-05-06.955) was taken 47.6 days after discovery of 2021gmjj
Position of SN (very faint) is indicated by white cross-hairs
Very poor quality image (poor sky transparency / single sub-frame)

CCD Image (100% size, log scale, cropped)
180s exposure (single frame), 3x3 binning, C Filter
2021-05-06 22:55 UT (#895008)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 3310 with SN 2021gmj - 2021-05-08 (T+48.8d)
Image below (2021-05-08.074) was taken 48.8 days after discovery of 2021gmj
Position of SN (faint) is indicated by white cross-hairs
Estimated Magnitude +14.9 (Clear Filter)

CCD Image (100% size, log scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2021-05-08 01:52 UT (#896075-77)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 3310 with SN 2021gmj - 2021-12-17 (T+271.9d)
Image below (2021-12-17.187) was taken 271.9 days after discovery of 2021gmj
SN is no longer visible

CCD Image (100% size, log scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2021-12-17 04:40 UT (#942305-08)
12" LX200R (at f/10.4) + ST-10XME
Non-Guided

NGC 3310 - 2021-12-30 (T+284.8d)
Image below (2021-12-30.115) was taken 284.8 days after discovery of 2021gmj
Position of earlier SN (no longer visible) is indicated by white cross-hairs

CCD Image (100% size, log scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2021-12-30 02:53 UT (#946145-47)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 3310 - 2022-01-02 (T+287.8d)
Image below (2022-01-02.149) was taken 287.8 days after discovery of 2021gmj
Earlier SN 2021gmj (Type: II) is no longer visible

CCD Image (100% size, log scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-01-02 03:44 UT (#947237-41)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 3310 with SN 2021gmj - 2022-01-06 (T+291.9d)
Image below (2022-01-06.224) was taken 291.9 days after discovery of 2021gmj
Position of earlier SN (no longer visible) is indicated by white cross-hairs

CCD Image (100% size, log scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-01-06 05:31 UT (#949127-31)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021hcz - Type Ia Supernova (discovered 2021-03-24) in NGC 1400

NGC 1400 with SN 2021hcz (Eridanus)
SN 2021hcz (Type: Ia) discovered 2021/03/24.984 UT by Gaia
Alias: Gaia21bmx
Alerting magnitude +15.43
Declined to magnitude +19.68 by 2021-08-24
Declined to magnitude +18.07 by 2021-12-22
( Rochester Supernova site | Discovery Image | TNS AT2021hcz | Gaia21bmx )

NGC 1400 - Elliptical Galaxy

Annotated CCD Image (50% size, log scale)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-01-09 19:33 UT (#952067-71)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 1400 with SN 2021hcz - 2021-12-16 (T+266.9d)
Image below (2021-12-16.893) was taken 266.9 days after discovery of 2021hcz
Position of earlier SN (no longer visible) is shown by white cross-hairs

Annotated CCD Image (125% size, log scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-12-16 21:36 UT (#942097-101)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 1400 with SN 2021hcz - 2022-01-09 (T+290.8d)
Image below (2022-01-09.808) was taken 290.8 days after discovery of 2021hcz
Position of earlier SN (no longer visible) is shown by white cross-hairs

Annotated CCD Image (125% size, log scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-01-09 19:33 UT (#952067-71)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Negative CCD Image (125% size, log scale, cropped)
Image details as above

NGC 1400 with SN 2021hcz - 2022-01-21 (T+302.8d)
Image below (2022-01-21.826) was taken 302.8 days after discovery of 2021hcz
Position of earlier SN (no longer visible) is shown by white cross-hairs

Annotated CCD Image (125% size, log scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2022-01-21 20:00 UT (#957081-85)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2021hcz (NGC 1400) on Supernova 2021 Page >>

SN 2021hiz - Type Ia Supernova (discovered 2021-03-30) in IC 3322A

IC 3322A with SN 2021hiz (Virgo)
SN 2021hiz (Type: Ia) discovered 2021/03/30.359 UT by ZTF
Alias: ZTF21aaqytjr
Discovery Magnitude 17.71 (g-ZTF Filter)
( Rochester Supernova site | TNS 2021hiz )

IC 3322A with SN 2021hiz - 2021-04-02 (T+2.7d)
IC 3322A / PGC 40566 (catalog mag +13.8) with SN indicated by white cross-hairs
Other galaxies in same field of view
PGC 213988 (catalog mag 16.9), PGC 213989 (catalog mag +16.9)
PGC 213987 (catalog +17.4)

Annotated CCD Image (50% size, square root scale)
2 x 180s exposure (average combine), 3x3 binning, C Filter
2021-04-02 01:22 UT (#879107-08)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

IC 3322A with SN 2021hiz
Image sequence T+2.7d to +4.7d
(SN discovery, T = 2021-03-30.359 UT)

IC 3322A with SN 2021hiz - 2021-04-02 (T+2.7d)
Image below (2021-04-02.054) was taken 2.7 days after discovery of 2021hiz
Position of SN (distinct, brightening) is indicated by white cross-hairs.
Measured magnitude +15.4 (Clear Filter)

Annotated CCD Image (100% size, square root scale, cropped)
2 x 180s exposure (average combine), 3x3 binning, C Filter
2021-04-02 01:22 UT (#879107-08)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

IC 3322A with SN 2021hiz - 2021-04-04 (T+4.7d)
Image below (2021-04-04.016) was taken 4.7 days after discovery of 2021hiz
Position of SN (distinct, brightening) is indicated by white cross-hairs.
Measured magnitude +14.4 (Clear Filter)

Annotated CCD Image (100% size, square root scale, cropped)
2 x 180s exposure (average combine), 3x3 binning, C Filter
2021-04-04 00:28 UT (#881100-01)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

IC 3322A with SN 2021hiz - 2021-04-15 (T+16.6d)
Image below (2021-04-15.939) was taken 16.6 days after discovery of 2021hiz
Position of SN (bright) is indicated by white cross-hairs.
Measured magnitude +13.07 (Clear Filter)

Annotated CCD Image (100% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-04-15 22:41 UT (#886039-43)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Negative CCD Image (100% size, square root scale, cropped)
Image details as above

IC 3322A with SN 2021hiz - 2022-01-02 (T+277.9d)
Image below (2022-01-02.210) was taken 277.9 days after discovery of 2021hiz
Position of SN (now only faintly visible) is indicated by white cross-hairs.
Image affected by some wind vibration

Annotated CCD Image (100% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2022-01-02 05:12 UT (#947267-71)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

IC 3322A with SN 2021hiz - 2022-01-09 (T+284.8d)
Image below (2022-01-09.194) was taken 284.8 days after discovery of 2021hiz
Position of SN (now only faintly visible) is indicated by white cross-hairs.

Annotated CCD Image (100% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2022-01-09 04:47 UT (#951094-97)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT2021kni - Candidate Supernova (discovered 2021-04-26) in NGC 7767

NGC 7767 with AT2021kni (Pegasus)
AT2021kni (Type: unk) discovered 2021/04/26.766 UT by Koichi Itagaki
Alias: PSN J23505558+2705349, Gaia21cvt
( Rochester Supernova site | Discovery Image | Enrico Prosperi image | Gaia21cvt )

NGC 7767 and adjacent galaxies
NGC 7767 (catalog mag +13.5), NGC 7768 (catalog mag +12.3),
NGC 7765 (catalog mag +14.7), NGC 7766 (catalog mag +16.7),
PGC 1800698 (catalog mag +17.1), PGC 1798869 (catalog mag +17.3)

Annotated CCD Image (50% size, square root scale)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2021-08-14 01:05 UT (#905100-02)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 7767 with AT2021kni
Image sequence T+10.3d to +123.2d
(SN discovery, T = 2021-04-26.766 UT )

NGC 7767 with AT2021kni - 2021-05-07 (T+10.3d)
Attempt to image AT2021kni on 2021-05-07.090 (10.3 days after discovery of transient)
unfortunately failed due to bright sky conditions and failed autoguiding.

No Image

NGC 7767 with AT2021kni - 2021-08-14 (T+109.3d)
Image below (2021-08-14.036) was taken 109.3 days after discovery of 2021kni
Position of reported transient is shown by white circle.
No clear definitive evidence of object at reported position.
Transient AT2021kni has probably faded to below limiting magnitude of image (~ +18.0)
Gaia observations (Gaia21cvt) on 2021-08-06 indicate that AT2021kni had faded to +19.74

Annotated CCD Image (150% size, square root scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2021-08-14 01:05 UT (#905100-02)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 7767 with AT2021kni - 2021-08-28 (T+123.2d)
Image below (2021-08-28.006) was taken 123.2 days after discovery of 2021kni
Position of reported transient is shown by white circle.
No clear definitive evidence of object at reported position.
Transient AT2021kni has probably faded to below limiting magnitude of image (~ +18.0)
Gaia observations (Gaia21cvt) on 2021-08-06 indicate that AT2021kni had faded to +19.74

CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-08-28 00:18 UT (#909107-11)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021tyf - Type II Supernova (discovered 2021-07-24) in UGC 9479 (Attempt)

UGC 9479 with SN 2021tyf (Virgo)
SN 2021tyf (Type: II) discovered 2021-07-24.206 UT by ZTF
Alias: ZTF21abnvlnj, Gaia21dwq
( Rochester Supernova site | Gaia21dwq )

UGC 9479 - Spiral Galaxy
Bright star is mag +7.85 star HIP 71915

Annotated CCD Image (50% size, square root scale)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-03-05 03:13 UT (#981069-73)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 9479 with SN 2021tyf - 2022-01-28 (T+188.0d)
Image below (2022-01-28.208) was taken 188.0 days after discovery of 2021tyf
Position of earlier SN (faded/no longer visible) in shown by white cross-hairs
Glare at top of image is from HIP 71915 (Mag +7.85)

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-01-28 05:08 UT (#960131-35)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 9479 with SN 2021tyf - 2022-03-05 (T+223.9d)
Image below (2022-03-05.128) was taken 223.9 days after discovery of 2021tyf
Position of earlier SN (faded/no longer visible) in shown by white cross-hairs

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-03-05 03:13 UT (#981069-73)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021koq - Type Ia Supernova (discovered 2021/04/28) in UGC 11177

UGC 11177 with SN 2021koq (Ophiuchus)
AT 2021koq (Type: Ia) discovered 2021/04/28.486 UT by ATLAS
Alias: ATLAS21nmi
Discovery Magnitude 17.84 (orange-ATLAS Filter)
( Rochester Supernova site | TNS 2021koq | TNS AstroNote ATLAS21nmi )

UGC 11177 - Spiral Galaxy with AT 2021koq (T+9.6d)

Annotated CCD Image (50% size, square root scale)
180s exposure (single frame), 3x3 binning, C Filter
2021-05-08 02:12 UT (#896083)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 11177 with SN 2021koq - 2021-05-08 (T+9.6d)
Image below (2021-05-08.092) was taken 9.6 days after discovery of 2021koq
Position of reported transient (faint but distinct) is shown by white cross-hairs
Measured Magnitude +15.92 (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped)
180s exposure (single frame), 3x3 binning, C Filter
2021-05-08 02:12 UT (#896083)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 11177 with SN 2021koq - 2021-05-11 (T+12.6d)
Image below (2021-05-11.063) was taken 12.6 days after discovery of 2021koq
Position of reported transient (distinct) is shown by white cross-hairs
Measured Magnitude +16.19 (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-05-11 01:38 UT (#897047-51)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 11177 with SN 2021koq - 2021-06-01 (T+33.6d)
Image below (2021-06-01.044) was taken 33.6 days after discovery of 2021koq
Position of reported transient (very faint) is shown by white cross-hairs
Very poor quality image (bright sky background, low S/N)

Annotated CCD Image (150% size, square root scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2021-06-01 01:09 UT (#899074-76)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 11177 with SN 2021koq - 2022-03-07 (T+312.7d)
Image below (2022-03-07.201) was taken 312.7 days after discovery of 2021koqf
Position of earlier transient / supernova (faded/no longer visible) is shown by white cross-hairs

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-03-07 04:59 UT (#983213-17)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021ucg - Type II Supernova (discovered 2021-07-25) in UGC 12188

UGC 12188 with SN 2021ucg (Lacerta)
SN 2021ucg (Type: II) discovered 2021/07/25.516 UT by ATLAS
Alias: ATLAS21bchd
Discovery Magnitude 18.06 (orange-ATLAS Filter)
vs Prior Non-Detection Limiting Magnitude 18.45
Host Alias : PGC 69727 (catalog mag +14.4)
(Rochester Supernova site | Odd Trondal image | TNS 2021ucg )

UGC 12188 - Spiral Galay

Annotated CCD Image (50% size, square root scale)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-08-14 00:30 UT (#905083-87)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 12188 with SN 2021ucg
Image sequence T+19.5d to +113.4d
(SN discovery, T = 2021-07-25.516 UT )

UGC 12188 with SN 2021ucg - 2021-08-14 (T+19.5d)
Image below (2021-08-14.015) was taken 19.5 days after discovery of 2021ucg
SN show by white cross-hairs
Measured magnitude +16.5

Annotated CCD Image (125% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-08-14 00:30 UT (#905083-87)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 12188 with SN 2021ucg - 2021-10-25 (T+92.3d)
Image below (2021-10-25.835) was taken 92.3 days after discovery of 2021ucg
Position of SN (faint) is shown by white cross-hairs
Measured magnitude +16.13 (Clear Filter)

CCD Image (125% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-10-25 20:10 UT (#928042-45)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 12188 with SN 2021ucg - 2021-11-15 (T+113.4d)
Image below (2021-11-15.903) was taken 113.4 days after discovery of 2021ucg
SN (faint) show by white cross-hairs
Measured magnitude +17.0

CCD Image (125% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-11-15 21:48 UT (#933022-26)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 12188 with SN 2021ucg - 2021-12-24 (T+152.4d)
Image below (2021-12-24.912) was taken 152.4 days after discovery of 2021ucg
Position of earlier SN (no longer visible) is shown by white cross-hairs

CCD Image (125% size, square root scale, cropped)
2 x 180s exposure (average combine), 3x3 binning, C Filter
2021-12-24 22:00 UT (#944016-18)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021ukt - Type Ia Supernova (discovered 2021-07-31) in UGC 505

UGC 505 with SN 2021ukt (Cetus)
SN 2021ukt (Type: Ia) discovered 2021/07/31.441 UT by ZTF
Alias: ZTF21abpxquj, Gaia21dsv
( Rochester Supernova site | Stan Howerton image | Gaia21dsv )

UGC 505 with SN 2021ukt - 2021-08-14 (T+13.6d)

Annotated CCD Image (50% size, square root scale)
2 x 180s exposure (average combine), 3x3 binning, C Filter
2021-08-14 01:19 UT (#905106-07)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 505 with SN 2021ukt
Image sequence T+13.6d to +95.5d
(SN discovery, T = 2021-07-31.441 UT )

UGC 505 with SN 2021ukt - 2021-08-14 (T+13.6d)
Image below (2021-08-14.052) was taken 13.6 days after discovery of 2021ukt
SN position is shown by white cross-hairs.
Measured magnitude +15.75

Annotated CCD Image (125% size, square root scale, cropped)
2 x 180s exposure (average combine), 3x3 binning, C Filter
2021-08-14 01:19 UT (#905106-07)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 505 with SN 2021ukt - 2021-08-28 (T+27.6d)
Image below (2021-08-28.053) was taken 27.6 days after discovery of 2021ukt
SN position is shown by white cross-hairs.
Measured magnitude +16.0

CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-08-28 01:26 UT (#909151-55)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 505 with SN 2021ukt - 2021-09-01 (T+31.6d)
Image below (2021-09-01.076) was taken 31.6 days after discovery of 2021ukt
SN position is shown by white cross-hairs.
Measured magnitude +16.05

CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-09-01 01:58 UT (#910105-09)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 505 with SN 2021ukt - 2021-09-07 (T+38.5d)
Image below (2021-09-07.990) was taken 38.5 days after discovery of 2021ukt
SN position is shown by white cross-hairs.
Measured magnitude +16.37 (Clear Filter)

CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-09-07 23:53 UT (#912099-103)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 505 with SN 2021ukt - 2021-11-03 (T+95.5d)
Image below (2021-11-03.933) was taken 95.5 days after discovery of 2021ukt
No sign of any object at location of earlier supernova
(shown by white cross-hairs)
SN is presumed to have faded

Annotated CCD Image (125% size, square root scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2021-11-03 22:33 UT (#931055-57)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021umh - Type Ia Supernova (discovered 2021-08-01) in LEDA 2204848

LEDA 2204848 with SN 2021umh (Andromeda)
SN 2021umh (Type: Ia) discovered 2021-08-01.449 UT by ZTF
Alias: ZTF21abqikvn
Discovery mag +18.64
( Rochester Supernova site | TNS 2021umh )
[ Supernovae ]

LEDA 2204848 - Galaxy
LEDA 2204848 / PGC 2204848 (catalog mag 16.7)
with adjacent galaxies
PGC 9017 (catalog mag +15.6), PGC 2204990 (catalog mag +16.0),
PGC 2204405 (catalog mag +16.8), PGC 2204898 (catalog mag +17.2),
PGC 2203419 (catalog mag +18.1)

Annotated CCD Image (50% size, square root scale)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-01-07 23:25 UT (#950131-35)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

LEDA 2204848 with SN 2021umh - 2021-09-22 (T+51.6d)
Image below (2021-09-22.097) was taken 51.6 days after discovery of 2021umh
Position of reported SN (not separately distinguishable) is shown by white cross hairs.
Measured magnitude +15.80 (gal. nucleus + SN)

CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-09-22 02:28 UT (#915265-69)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

LEDA 2204848 with SN 2021umh - 2022-01-07 (T+159.5d)
Image below (2022-01-07.969) was taken 159.5 days after discovery of 2021umh
Position of earlier SN (no longer distinguishable/not visible) is shown by white cross hairs.
Measured magnitude +16.40 (gal. nucleus)

CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-01-07 23:25 UT (#950131-35)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Annotated negative CCD Image (150% size, square root scale, cropped)
Image details as above

LEDA 2204848 with SN 2021umh - 2022-01-09 (T+161.3d)
Image below (2022-01-09.756) was taken 161.3 days after discovery of 2021umh
Position of earlier SN (no longer distinguishable/not visible) is shown by white cross hairs.
Measured magnitude +16.40 (gal. nucleus) , unchanged

CCD Image (150% size, square root scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2022-01-09 18:22 UT (#952030-32)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2021umh (LEDA 2204848) on Supernovae 2021 Page >>

SN 2021usd - Type Ia Supernova (discovered 2021-08-02) in CGCG 200-019 (Attempt)

CGCG 200-019 with SN 2021usd (Lyra)
SN 2021usd (Type: Ia) discovered 2021-08-02.376 UT by PS1
Alias: PS21ijv, ZTF21abqftqr
Discovery Magnitude +18.75
( Rochester Supernova site | TNS 2021usd )

CGCG 200-019 - Galaxy

Annotated CCD Image (50% size, square root scale)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2022-03-20 02:09 UT (#989157-60)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

CGCG 200-019 with SN 2021usd - 2022-02-10 (T+191.8d)
Image below (2022-02-10.197) was taken 191.8 days after discovery of 2021usd
Position of earlier SN (no longer visible) is shown by white cross-hairs

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-02-10 04:54 UT (#968277-81)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

CGCG 200-019 with SN 2021usd - 2022-03-20 (T+229.7d)
Image below (2022-03-20.081) was taken 229.7 days after discovery of 2021usd
Position of earlier SN (no longer visible) is shown by white cross-hairs

Annotated CCD Image (150% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2022-03-20 02:09 UT (#989157-60)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021vau - Type Ia Supernova (discovered 2021-08-04) in Spiral Galaxy UGC 3240

UGC 3240 with SN 2021vau (Orion)
SN 2021vau (Type: Ia, z=0.036) discovered 2021/08/04.610 UT by ASAS-SN
Alias: ASASSN-21ou, Gaia21dzq
Host Alias : PGC 16668 (catalog mag +15.5)
(Rochester Supernova site | Discovery image | Gaia21dzq )

UGC 3240 with SN 2021vau (T+23.5d)

CCD Image (50% size, square root scale)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-08-28 03:07 UT (#909223-27)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 3240 with SN 2021vau - 2021-08-28 (T+23.5d)
Image below (2021-08-28.124) was taken 23.5 days after discovery of 2021vau
Supernova position (v. close to galaxy centre) shown by white indicator line
Measured magnitude +15.7 (SN + Host Nucleus)

CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-08-28 03:07 UT (#909223-27)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 3240 with SN 2021vau - 2021-09-01 (T+27.5d)
Image below (2021-09-01.115) was taken 27.5 days after discovery of 2021vau
Supernova position (v. close to galaxy centre) shown by white indicator line
Measured magnitude +15.8 (SN + Host Nucleus)

CCD Image (150% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-09-01 02:52 UT (#910128-31)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 3240 with SN 2021vau - 2021-09-22 (T+48.6d)
Image below (2021-09-22.179) was taken 48.6 days after discovery of 2021vau
Supernova position (v. close to galaxy centre) shown by white indicator line
Measured Magnitude (SN + Host Nucleus) +15.55 (Clear Filter)

CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-09-22 04:27 UT (#915366-70)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 3240 with SN 2021vau - 2021-10-23 (T+79.5d)
Image below (2021-10-23.118) was taken 79.5 days after discovery of 2021vau
Supernova position (v. close to galaxy centre) shown by white indicator line
Poor quality image (bright sky background, low S/N)

CCD Image (150% size, square root scale, cropped)
2 x 180s exposure (average combine), 3x3 binning, C Filter
2021-10-23 02:55 UT (#926145-47)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 3240 with SN 2021vau - 2021-11-17 (T+104.4d)
Image below (2021-11-17.012) was taken 104.4 days after discovery of 2021vau
Supernova position (v. close to galaxy centre) shown by white indicator line
Measured magnitude +16.0 (SN + Host Nucleus)
(vs catalog mag for UGC/PGC 16668 of +15.5)
Image quality degraded by bright moonlit sky

CCD Image (150% size, square root scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2021-11-17 00:26 UT (#934079-81)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 3240 with SN 2021vau - 2021-11-24 (T+111.4d)
Image below (2021-11-24.049) was taken 111.4 days after discovery of 2021vau
Supernova shown by white indicator line
Measured magnitude +15.95 (SN + Host Nucleus)
(vs catalog mag for UGC/PGC 16668 of +15.5)

CCD Image (150% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-11-24 01:21 UT (#936167-70)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021vtl - Type Ia Supernova (discovered 2021-08-11) in NGC 940

NGC 940 with SN 2021vtl (Triangulum)
SN 2021vtl (Type: Ia) discovered 2021-08-11.930 UT by XOSS
Alias: PSP21D, Gaia21duk, PSN J02292803+3138385
(Rochester Supernova site )

NGC 940 with SN 2021vtl (T+20.1d)

Annotated CCD Image (50% size, square root scale)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-09-01 01:29 UT (#910090-94)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 940 with SN 2021vtl - 2021-09-01 (T+20.1d)
Image below (2021-09-01.056) was taken 20.1 days after discovery of 2021vtl
SN is shown by white cross-hairs

Annotated CCD Image (100% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-09-01 01:29 UT (#910090-94)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 940 with SN 2021vtl - 2021-09-07 (T+26.2d)
Image below (2021-09-07.140) was taken 26.2 days after discovery of 2021vtl
SN (distinct, but fading) is shown by white cross-hairs
Estimated Magnitude +16.0 (Clear Filter)

Annotated CCD Image (100% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-09-07 03:31 UT (#911133-37)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 940 with SN 2021vtl - 2021-09-08 (T+27.2d)
Image below (2021-09-08.115) was taken 27.2 days after discovery of 2021vtl
SN (distinct) is shown by white cross-hairs
Estimated Magnitude +16.0 (Clear Filter)

Annotated CCD Image (100% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-09-08 02:54 UT (#912198-202)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 940 with SN 2021vtl - 2021-09-20 (T+39.2d)
Image below (2021-09-20.108) was taken 39.2 days after discovery of 2021vtl
SN (faint) is shown by white cross-hairs
Estimated Magnitude +16.1 (Clear Filter)

Annotated CCD Image (100% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-09-20 02:44 UT (#914166-70)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 940 with SN 2021vtl - 2021-09-22 (T+41.1d)
Image below (2021-09-22.011) was taken 41.1 days after discovery of 2021vtl
SN (faint) is shown by white cross-hairs

Annotated CCD Image (100% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-09-22 00:25 UT (#915199-203)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 940 with SN 2021vtl - 2021-09-28 (T+47.1d)
Image below (2021-09-28.063) was taken 47.1 days after discovery of 2021vtl
SN (faint) is shown by white cross-hairs

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-09-28 01:40 UT (#917241-45)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 940 with SN 2021vtl - 2021-09-30 (T+49.1d)
Image below (2021-09-30.024) was taken 49.1 days after discovery of 2021vtl
SN (faint) is shown by white cross-hairs
Estimated Magnitude +16.9 (Clear Filter)

Annotated CCD Image (125% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-09-30 00:43 UT (#918184-88)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 940 with SN 2021vtl - 2021-10-03 (T+53.0d)
Image below (2021-10-03.976) was taken 53.0 days after discovery of 2021vtl
SN (faint) is shown by white cross-hairs
Estimated Magnitude +16.9 (Clear Filter)

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-10-03 23:34 UT (#920025-29)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 940 with SN 2021vtl - 2021-10-05 (T+54.2d)
Image below (2021-10-05.101) was taken 54.2 days after discovery of 2021vtl
SN (faint) is shown by white cross-hairs
Estimated Magnitude +16.9 (Clear Filter)

Annotated CCD Image (125% size, square root scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2021-10-05 02:30 UT (#921205-07)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 940 with SN 2021vtl - 2021-10-10 (T+59.1d)
Image below (2021-10-10.025) was taken 59.1 days after discovery of 2021vtl
Position of SN (faint) is shown by white cross-hairs
Estimated Magnitude +17.0 (Clear Filter)

Annotated CCD Image (125% size, square root scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2021-10-10 00:42 UT (#922027-29)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 940 with SN 2021vtl - 2021-11-09 (T+90.0d)
Image below (2021-11-09.940) was taken 90.0 days after discovery of 2021vtl
Position of earlier reported SN is shown by white cross-hairs
No indication of SN object, this is most probably because SN has faded
combined with a poor image quality (due to poor guiding & no frame stacking)

Annotated CCD Image (100% size, square root scale, cropped)
180s exposure (single frame), 3x3 binning, C Filter
2021-11-09 22:36 UT (#932114)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 940 with SN 2021vtl - 2021-11-17 (T+97.1d)
Image below (2021-11-17.055) was taken 97.1 days after discovery of 2021vtl
No indication of earlier SN object, this is most probably because SN has faded

Annotated CCD Image (100% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-11-17 01:28 UT (#934116-20)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021wcu - Type Ia Supernova (discovered 2021-08-13) in GALEXASC J072024.60+325058.8

SN 2021wcu in GALEXASC J072024.60+325058.8 (Gemini)
SN 2021wcu (Type: Ia) discovered 2021-08-13.497 UT by ZTF
Alias: ZTF21abtdlno, Gaia21eaw
(Rochester Supernova site | TNS 2021wcu | Gaia21eaw )

GALEXASC J072024.60+325058.8 - Galaxy

Annotated CCD Image (50% size, square root scale)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-02-09 21:54 UT (#968116-20)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021wcu - 2021-10-11 (T+58.7d)
Image below (2021-10-11.158) was taken 58.7 days after discovery of 2021wcu
Position of SN (very faint) is shown by white cross-hairs.
Poor quality image (poor sky transparency / cloud)

Annotated CCD Image (150% size, square root scale, cropped)
2 x 180s exposure (average combine), 3x3 binning, C Filter
2021-10-11 03:50 UT (#923043-44)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021wcu in GALEXASC J072024.60+325058.8 - 2022-01-22 (T+162.4d)
Image below (2022-01-22.904) was taken 162.4 days after discovery of 2021wcu
Position of SN (very faint) is shown by white cross-hairs.

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-01-22 21:51 UT (#958092-96)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021wcu in GALEXASC J072024.60+325058.8 - 2022-02-09 (T+180.4d)
Image below (2022-02-09.906) was taken 180.4 days after discovery of 2021wcu
Position of earlier SN (no longer visible) is shown by white cross-hairs.

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-02-09 21:54 UT (#968116-20)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021wad - Type Ia Supernova (discovered 2021-08-15) in NGC 4896

NGC 4896 with SN 2021wad (Coma Berenices)
SN 2021wad (Type: Ia, zhost=0.019864) discovered 2021/08/15.261 UT by ATLAS
Alias: ATLAS21bgbp, Gaia21duy
Magnitude +17.68 at discovery
(Rochester Supernova site, Gaia21duy )

NGC 4896 with SN 2021wad (T+9.6d)
NGC 4896 Elliptical Galaxy, Alias UGC 8117 / PGC 44768, (catalog mag +13.9)
with adjacent Galaxies : PGC 44848 (catalog mag +14.9),
PGC 44805 (catalig mag +15.7), PGC 44750 (catalog mag +16.4)
Note : satellite track crossing image close to NGC 4896

Annotated CCD Image (50% size, square root scale)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-08-24 21:29 UT (#908005-09)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 4896 (T+176.8d)

Annotated CCD Image (50% size, square root scale)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-02-08 02:05 UT (#966066-70)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 4896 with SN 2021wad
Image sequence T+7.6d to +176.8d
(SN discovery, T = 2021-08-15.261 UT )

NGC 4896 with SN 2021wad - 2021-08-22 (T+7.6d)
Image below (2021-08-22.894) was taken 7.6 days after discovery of 2021wad
SN position is shown by white cross-hairs.
Measured mag ?
(unable to resolve SN using SExtractor/CCDSoft)

Annotated CCD Image (125% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-08-22 21:37 UT (#906005-09)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 4896 with SN 2021wad - 2021-08-24 (T+9.6d)
Image below (2021-08-24.888) was taken 9.6 days after discovery of 2021wad
SN position is shown by white cross-hairs.
Measured mag ? (unable to resolve SN using SExtractor/CCDSoft)

Annotated CCD Image (125% size, square root scale, cropped)
Image details as above

NGC 4896 with SN 2021wad - 2022-01-08 (T+145.9d)
Image below (2022-01-08.113) was taken 145.9 days after discovery of 2021wad
Position of earlier SN (no longer visible) is shown by white cross-hairs.

Annotated CCD Image (125% size, square root scale, cropped)
2 x 180s exposure (average combine), 3x3 binning, C Filter
2022-01-08 02:47 UT (#950203-04)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 4896 with SN 2021wad - 2022-02-04 (T+172.9d)
Image below (2022-02-04.167) was taken 172.9 days after discovery of 2021wad
Position of earlier SN (no longer visible) is shown by white cross-hairs.

Annotated CCD Image (125% size, square root scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2022-02-04 04:10 UT (#962082-84)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 4896 with SN 2021wad - 2022-02-05 (T+173.8d)
Image below (2022-02-05.084) was taken 173.8 days after discovery of 2021wad
Position of earlier SN (no longer visible) is shown by white cross-hairs.

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-02-05 02:11 UT (#963189-93)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 4896 with SN 2021wad - 2022-02-06 (T+174.8d)
Image below (2022-02-06.067) was taken 174.8 days after discovery of 2021wad
Position of earlier SN (no longer visible) is shown by white cross-hairs.

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-02-06 01:45 UT (#964158-62)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 4896 with SN 2021wad - 2022-02-08 (T+176.8d)
Image below (2022-02-08.080) was taken 176.8 days after discovery of 2021wad
Position of earlier SN (no longer visible) is shown by white cross-hairs.

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-02-08 02:05 UT (#966066-70)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 4896 with SN 2021wad - 2022-02-10 (T+178.9d)
Image below (2022-02-10.112) was taken 178.9 days after discovery of 2021wad
Position of earlier SN (no longer visible) is shown by white cross-hairs.

Annotated CCD Image (125% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2022-02-10 02:49 UT (#968216-19)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021win - Type Ia Supernova (discovered 2021-08-18) in WISEA J050619.12+223047.4

SN 2021win (Taurus)
Alias: In WISEA J050619.12+223047.4
SN 2021win (Type: Ia) discovered 2021-08-18.445 UT by ZTF
Alias: ZTF21abuibjs, Gaia21dyd
Magnitude at discovery ~ +16.4
(Rochester Supernova site | Gaia21dyd )

WISEA Galaxy with SN 2021win (T+32.7d)
Position of reported SN is shown by white circle
Bright star in FOV is HIP 23784 (magnitude +7.13)

Annotated CCD Image (50% size, square root scale)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-09-20 03:50 UT (#914195-99)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021win - 2021-09-20 (T+32.7d)
Image below (2021-09-20.153) was taken 32.7 days after discovery of 2021win
Position of reported SN (distinct) is shown by white cross-hairs
Measured Magnitude +15.92 (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-09-20 03:50 UT (#914195-99)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021win - 2021-12-05 (T+109.4d)
Image below (2021-12-05.835) was taken 109.4 days after discovery of 2021win
Position of reported SN is shown by white cross-hairs
Host galaxy is faint but just visible.
SN itself has probably faded and is no longer visible.

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-12-05 20:12 UT (#939066-70)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021win - 2021-12-29 (T+133.4d)
Image below (2021-12-29.892) was taken 133.4 days after discovery of 2021win
Position of reported SN is shown by white cross-hairs
Host galaxy is faint but just visible.
SN itself has probably faded and is no longer visible.

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-12-29 21:33 UT (#946030-34)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021win - 2022-01-07 (T+142.6d)
Image below (2022-01-07.998) was taken 142.6 days after discovery of 2021win
Position of reported SN is shown by white cross-hairs
Host galaxy is faint but just visible.
SN itself has probably faded and is no longer visible.

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-01-08 00:06 UT (#950144-48)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021wqi - Type Ia Supernova (discovered 2021-08-20) in NGC 5513

NGC 5513 with SN 2021wqi (Bootes)
SN 2021wqi : Type Ia (z=0.016724) discovered 2021/08/20.214 UT by Gaia
Alias: Gaia21dxe
Discovery Magnitude +17.68
(Rochester Supernova site, Gaia21duy )

NGC 5513 with SN 2021wqi (T+9.6d)
NGC 5513 / PGC 50776, (catalog mag +14.9)
with adjacent Galaxies :
NGC 5509 / PGC 50751 (catalog mag +14.1 or +15.1),
PGC 50761 (catalog mag +15.2)

Annotated CCD Image (50% size, square root scaled)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-08-24 21:49 UT (#908013-17)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 5513 with SN 2021wqi
Image sequence T+2.7d to +4.7d
(SN discovery, T = 2021-08-20.214 UT )

NGC 5513 with SN 2021wqi - 2021-08-22 (T+2.7d)
Image below (2021-08-22.910) was taken 2.7 days after discovery of 2021wqi
SN position is close to center of galaxy and is not individually recognisable
Measured mag ? (unable to resolve SN using SExtractor/CCDSoft)

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-08-22 22:00 UT (#906012-16)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 5513 with SN 2021wqi - 2021-08-24 (T+4.7d)
Image below (2021-08-24.903) was taken 4.7 days after discovery of 2021wqi
SN position is close to center of galaxy and is not individually recognisable
Measured mag ? (unable to resolve SN using SExtractor/CCDSoft)

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-08-24 21:49 UT (#908013-17)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021wkv - Type Ia Supernova (discovered 2021-08-20) in NGC 6184

NGC 6184 with SN 2021wkv (Hercules)
SN 2021wkv (Type: Ia, zhost=0.027329) discovered 2021/08/20.277 UT by ATLAS
Alias: ATLAS21bgqy. Gaia21fab
Discovery Magnitude 18.16 (orange-ATLAS Filter)
vs Prior Non-Detection Limiting Magnitude 19.2
Confirmed SN Ia
Gaia, 2021-10-31 22:54, Mag 19.10
Gaia, 2021-11-01 00:40, Mag 19.04
Gaia, 2021-12-13 10:30, Mag 19.93
Gaia, 2022-01-09 18:12, Mag 20.38
(Rochester Supernova site | Rafa Ferrando Image )
[ TNS 2021wkv | Gaia21fab ]

NGC 6184 with SN 2021wkv (T+3.7d)

Annotated CCD Image (50% size, square root scale)
2 x 180s exposure (average combine), 3x3 binning, C Filter
2021-08-24 00:15 UT (#907026-29)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 6184 with SN 2021wkv
Image sequence T+3.7d to +168.9d
(SN discovery, T = 2021-08-20.277 UT )

NGC 6184 with SN 2021wkv - 2021-08-24 (T+3.7d)
Image below (2021-08-24.003) was taken 3.7 days after discovery of 2021wkv
SN position is shown by white cross-hairs.
Measured mag +16.3

Annotated CCD Image (125% size, square root scale, cropped)
2 x 180s exposure (average combine), 3x3 binning, C Filter
2021-08-24 00:15 UT (#907026-29)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 6184 with SN 2021wkv - 2021-08-24 (T+4.6d)
Image below (2021-08-24.919) was taken 4.6 days after discovery of 2021wkv
SN position is shown by white cross-hairs.
Measured mag +16.2

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-08-24 22:13 UT (#908020-24)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 6184 with SN 2021wkv - 2021-09-01 (T+11.8d)
Image below (2021-09-01.040) was taken 11.8 days after discovery of 2021wkv
SN position is shown by white cross-hairs.
Measured mag +15.95

Annotated CCD Image (125% size, square root scale, cropped)
2 x 180s exposure (average combine), 3x3 binning, C Filter
2021-09-01 01:11 UT (#910086-87)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 6184 with SN 2021wkv - 2021-09-07 (T+17.7d)
Image below (2021-09-07.007) was taken 17.7 days after discovery of 2021wkv
SN position (brightening) is shown by white cross-hairs.
Measured mag +15.62 (Clear Filter)

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-09-07 00:16 UT (#911044-48)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Annotated CCD Image (125% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-09-07 21:10 UT (#912004-08)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 6184 with SN 2021wkv - 2021-09-19 (T+30.7d)
Image below (2021-09-19.962) was taken 30.7 days after discovery of 2021wkv
Position of SN (faint) is shown by white cross-hairs.
Measured mag +15.75 (Clear Filter)

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-09-19 23:14 UT (#914048-52)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 6184 with SN 2021wkv - 2021-09-21 (T+32.6d)
Image below (2021-09-21.831) was taken 32.6 days after discovery of 2021wkv
SN position is shown by white cross-hairs.
Measured mag ? (unable to resolve SN in CCDSoft/SExtractor)

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-09-21 20:05 UT (#915009-13)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 6184 with SN 2021wkv - 2021-09-27 (T+38.6d)
Image below (2021-09-27.839) was taken 38.6 days after discovery of 2021wkv
SN position is shown by white cross-hairs.
Measured mag ? (unable to resolve SN in CCDSoft/Sextractor)

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-09-27 20:17 UT (#917034-38)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 6184 with SN 2021wkv - 2021-09-29 (T+40.6d)
Image below (2021-09-29.883) was taken 40.6 days after discovery of 2021wkv
Position of SN (faint) is shown by white cross-hairs.
Estimated Magnitude +16.9 (Clear Filter)

Annotated CCD Image (125% size, square root scale, cropped)
180s exposure (single frame), 3x3 binning, C Filter
2021-09-29 21:11 UT (#918048)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 6184 with SN 2021wkv - 2021-10-04 (T+44.8d)
Image below (2021-10-04.038) was taken 44.8 days after discovery of 2021wkv
Position of SN (barely visible) is shown by white cross-hairs.
Poor quality image (poor seeing)

Annotated CCD Image (125% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-10-04 01:04 UT (#920088-92)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 6184 with SN 2021wkv - 2021-10-05 (T+45.8d)
Image below (2021-10-05.056) was taken 45.8 days after discovery of 2021wkv
Position of SN (faint) is shown by white cross-hairs.
Estimated Magnitude +17.0 (Clear Filter)

Annotated CCD Image (125% size, square root scale, cropped)
2 x 180s exposure (average combine), 3x3 binning, C Filter
2021-10-05 01:24 UT (#921158-59)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 6184 with SN 2021wkv - 2021-10-10 (T+50.8d)
Image below (2021-10-10.040) was taken 50.8 days after discovery of 2021wkv
Position of SN (barely visible) is shown by white cross-hairs.
Poor quality image (poor seeing)

Annotated CCD Image (125% size, square root scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2021-10-10 01:03 UT (#922033-35)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 6184 with SN 2021wkv - 2021-10-10 (T+51.6d)
Image below (2021-10-10.863) was taken 51.6 days after discovery of 2021wkv
Position of SN (barely visible) is shown by white cross-hairs.
Poor quality image (poor seeing, wind shake?)

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-10-10 20:52 UT (#923004-08)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 6184 with SN 2021wkv - 2021-10-13 (T+54.6d)
Image below (2021-10-13.832) was taken 54.6 days after discovery of 2021wkv
Position of SN (very faint) is shown by white cross-hairs.

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-10-13 20:07 UT (#924011-15)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 6184 with SN 2021wkv - 2021-10-22 (T+63.6d)
Image below (2021-10-22.907) was taken 63.6 days after discovery of 2021wkv
Position of SN (very faint) is shown by white cross-hairs.
Poor quality image (bright sky background)

Annotated CCD Image (125% size, square root scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2021-10-22 21:52 UT (#926017-19)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 6184 with SN 2021wkv - 2022-02-05 (T+168.9d)
Image below (2022-02-05.167) was taken 168.9 days after discovery of 2021wkv
Position of earlier SN (no longer visible) is shown by white cross-hairs.

Annotated CCD Image (125% size, square root scale, cropped)
2 x 180s exposure (average combine), 3x3 binning, C Filter
2022-02-05 04:05 UT (#963231-32)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021wuf - Type Ia Supernova (discovered 2021-08-23) in Spiral Galaxy NGC 6500

NGC 6500 with SN 2021wuf (Hercules)
SN 2021wuf (Type: Ia) discovered 2021-08-23.372 UT by ATLAS
Alias: ATLAS21bgsc
(Rochester Supernova site | Mantero Andrea image )

NGC 6500 with SN 2021wuf - 2021-09-07 (T+15.5d)
NGC 6500 (catalog mag + 12.2 or +13.3)
NGC 6501 / PGC 61128 (catalog mag + 12.4 or +13.9)

SN position in NGC 6500 is shown by white cross-hairs.
Bright star in image is HIP 87823 / SAO 103226 (mag +6.7)

Annotated CCD Image (50% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-09-07 21:32 UT (#912011-15)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 6500 with SN 2021wuf - 2021-09-07 am (T+14.7d)
Image below (2021-09-07.026) was taken 14.7 days after discovery of 2021wuf
SN position (distinct) is shown by white cross-hairs.
Measured mag +14.16 (Clear Filter)

Annotated CCD Image (100% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-09-07 00:37 UT (#911052-56)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 6500 with SN 2021wuf - 2021-09-07 pm (T+15.5d)
Image below (2021-09-07.891) was taken 15.5 days after discovery of 2021wuf
SN position is shown by white cross-hairs.
Measured mag +14.1 (Clear Filter)
Image Link using Detection Threshold of 25.0

Annotated CCD Image (100% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-09-07 21:32 UT (#912011-15)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 6500 with SN 2021wuf - 2021-09-19 (T+27.5d)
Image below (2021-09-19.919) was taken 27.5 days after discovery of 2021wuf
Position of SN (distinct) is shown by white cross-hairs.
Measured mag +14.87 (Clear Filter)

Annotated CCD Image (100% size, square root scale, cropped)
2 x 180s exposure (average combine), 3x3 binning, C Filter
2021-09-19 22:11 UT (#914016-20)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 6500 with SN 2021wuf - 2021-09-21 (T+29.5d)
Image below (2021-09-21.874) was taken 29.5 days after discovery of 2021wuf
SN position (faint but distinct) is shown by white cross-hairs.
Measured Magnitude +15.10 (Clear Filter)

Annotated CCD Image (100% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-09-21 21:06 UT (#915052-56)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 6500 with SN 2021wuf - 2021-09-27 (T+35.5d)
Image below (2021-09-27.876) was taken 35.5 days after discovery of 2021wuf
SN position is shown by white cross-hairs.
Measured mag +15.2
Image Link using Detection Threshold of 30.0

Annotated CCD Image (100% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-09-27 21:12 UT (#917054-58)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 6500 with SN 2021wuf - 2021-09-29 (T+37.5d)
Image below (2021-09-29.833) was taken 37.5 days after discovery of 2021wuf
Position of SN (distinct) is shown by white cross-hairs.
Measured Magnitude +15.25 (Clear Filter)

Annotated CCD Image (100% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-09-29 20:08 UT (#918012-16)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 6500 with SN 2021wuf - 2021-10-03 (T+41.6d)
Image below (2021-10-03.949) was taken 41.6 days after discovery of 2021wuf
Position of SN (distinct) is shown by white cross-hairs.
Measured Magnitude +15.50 (Clear Filter)
Relatively poor quality image (poor seeing)

Annotated CCD Image (100% size, square root scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2021-10-03 22:53 UT (#920003-06)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 6500 with SN 2021wuf - 2021-10-04 (T+42.5d)
Image below (2021-10-04.894) was taken 42.5 days after discovery of 2021wuf
Position of SN (distinct) is shown by white cross-hairs.
Measured Magnitude +15.50 (Clear Filter)

Annotated CCD Image (100% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-10-04 21:34 UT (#921004-07)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 6500 with SN 2021wuf - 2021-10-04 (T+42.5d)
Image below (2021-10-04.894) was taken 42.5 days after discovery of 2021wuf
Position of SN (distinct, fading) is shown by white cross-hairs.
Measured Magnitude +16.04 (Clear Filter)

NGC 6500 with SN 2021wuf - 2022-02-24 (T+184.8d)
Image below (2022-02-24.203) was taken 184.8 days after discovery of 2021wuf
Position of earlier SN (faded & no longer visible) is shown by white cross-hairs.

Annotated CCD Image (100% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-02-24 05:02 UT (#976255-59)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 6500 with SN 2021wuf - 2022-03-05 (T+193.8d)
Image below (2022-03-05.158) was taken 193.8 days after discovery of 2021wuf
Position of earlier SN (faded & no longer visible) is shown by white cross-hairs.

Annotated CCD Image (100% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2022-03-05 03:55 UT (#981083-86)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021wvy - Type II Supernova (discovered 2021-08-23) in UGC 4002

UGC 4002 with SN 2021wvy (Lynx)
SN 2021wvy (Type: II) discovered 2021-08-23.520 UT by ZTF
Alias: ZTF21abvdikq, Gaia21dym
Magnitude at discovery +18.02
( Rochester Supernova site )

[ Gaia21dym ]

UGC 4002 with SN 2021wvy (T+8.5d)
Bright star in FOV is HIP 37917 (mag +7.0)

Annotated CCD Image (100% size, square root scale)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-09-01 00:45 UT (#910075-79)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 4002 with SN 2021wvy - 2021-09-01 (T+8.5d)
Image below (2021-09-01.025) was taken 8.5 days after discovery of 2021wv
The reported transient (faint) is shown by white cross-hairs

Annotated CCD Image (150% size, square root scale, cropped
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-09-01 00:45 UT (#910075-79)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 4002 with SN 2021wvy - 2021-09-07 (T+14.6d)
Image below (2021-09-07.110) was taken 14.6 days after discovery of 2021wvy
The reported transient (faint) is shown by white cross-hairs
Very poor quality image (poor guiding)

Annotated CCD Image (150% size, square root scale, cropped
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-09-07 02:46 UT (#911107-10)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 4002 with SN 2021wvy - 2021-09-08 (T+15.5d)
Image below (2021-09-08.033) was taken 15.5 days after discovery of 2021wvy
Position of reported transient (faint) is shown by white cross-hairs
Estimated Magnitude +17.3 (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-09-08 00:57 UT (#912124-28)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 4002 with SN 2021wvy - 2021-12-29 (T+127.5d)
Image below (2021-12-29.047) was taken 127.5 days after discovery of 2021wv
Position of earlier SN (no longer visible) is shown by white cross-hairs

Annotated CCD Image (150% size, square root scale, cropped
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-12-29 01:16 UT (#945134-38)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021wvw - Type II Supernova (discovered 2021-08-24) in Irregular Galaxy UGC 2605

UGC 2605 with SN 2021wvw (Perseus)
SN 2021wvw (Type: II, z=0.009944) discovered 2021-08-24.606 UT by PS1
Alias: PS21jnb
Host Alias : PGC 12073
(Rochester Supernova site )

UGC 2605 with SN 2021wvw (T+3.5d)

CCD Image (50% size, square root scale)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-08-28 02:46 UT (#909215-19)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 2605 with SN 2021wvw - 2021-08-28 (T+3.5d)
Image below (2021-08-28.109) was taken 3.5 days after discovery of 2021wvw
Supernova shown by white cross-hairs
Measured magnitude +17.35 (Clear Filter)
(linked with Detection Threshold = 3)

CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-08-28 02:46 UT (#909215-19)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 2605 with SN 2021wvw - 2021-09-01 (T+7.5d)
Image below (2021-09-01.090) was taken 7.5 days after discovery of 2021wvw
Supernova shown by white cross-hairs
Measured magnitude +17.6 (Clear Filter)

CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-09-01 02:18 UT (#910112-16)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 2605 with SN 2021wvw - 2021-09-07 (T+13.5d)
Image below (2021-09-07.095) was taken 13.5 days after discovery of 2021wvw
Supernova (faint but distinct) shown by white cross-hairs
Measured magnitude +17.43 (Clear Filter)

CCD Image (125% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-09-07 02:24 UT (#911101-04)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 2605 with SN 2021wvw - 2021-09-08 (T+14.5d)
Image below (2021-09-08.144) was taken 14.5 days after discovery of 2021wvw
Supernova (faint but still distinct) shown by white cross-hairs
Measured magnitude +17.42 (Clear Filter)

Annotated CCD Image (125% size, square root scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2021-09-08 03:35 UT (#912224-27)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 2605 with SN 2021wvw - 2021-09-22 (T+28.4d)
Image below (2021-09-22.047) was taken 28.4 days after discovery of 2021wvw
Position of SN (faint, fading) shown by white cross-hairs
Measured magnitude +17.80 (Clear Filter)

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-09-22 01:16 UT (#915224-28)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 2605 with SN 2021wvw - 2021-09-28 (T+34.6d)
Image below (2021-09-28.159) was taken 34.6 days after discovery of 2021wvw
Supernova shown by white cross-hairs
Measured magnitude +17.6 (Clear Filter)

CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-09-28 03:58 UT (#917296-300)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 2605 with SN 2021wvw - 2021-10-05 (T+41.5d)
Image below (2021-10-05.147) was taken 41.5 days after discovery of 2021wvw
Position of SN (faint) is shown by white cross-hairs
Measured magnitude +17.68 (Clear Filter)

CCD Image (125% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-10-05 03:39 UT (#921243-46)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 2605 with SN 2021wvw - 2021-10-10 (T+46.5d)
Image below (2021-10-10.090) was taken 46.5 days after discovery of 2021wvw
Position of SN (faint) is shown by white cross-hairs
Measured magnitude +17.80 (Clear Filter)

CCD Image (125% size, square root scale, cropped)
2 x 180s exposure (average combine), 3x3 binning, C Filter
2021-10-10 02:13 UT (#922055-56)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 2605 with SN 2021wvw - 2021-10-31 (T+67.4d)
Image below (2021-10-31.006) was taken 67.4 days after discovery of 2021wvw
Supernova shown by white cross-hairs
Measured magnitude +17.9 (Clear Filter)
(linked with Detection Threshold = 30
with Inventory based on Detection Threshold 3)

CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-10-31 00:17 UT (#930135-39)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 2605 with SN 2021wvw - 2021-12-13 (T+111.2d)
Image below (2021-12-13.804) was taken 111.2 days after discovery of 2021wvw
Position of earlier Supernova (no longer visible) is shown by white cross-hairs

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-12-13 19:28 UT (#941063-67)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021wyw - Type Ia Supernova (discovered 2021-08-25) in NGC 7501

NGC 7501 with SN 2021wyw (Pisces)
SN 2021wyw (Type: Ia) discovered 2021-08-25.315 UT by ZTF
Alias: ZTF21abvicne
Discovery Magnitude 19.47 (r-ZTF Filter)
(Rochester Supernova site | Gianluca Masi image | Enrico Prosperi image )
( TNS 2021wyw )

NGC 7501 with adjacent galaxies
including NGC 7501 (catalog mag + 14.9), NGC 7499 (catalog mag +14.4)
NGC 7503 (catalog mag +14.5) & numerous PGC galaxies

Annotated CCD Image (70% size, square root scale)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-11-19 20:04 UT (#935092-96)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 7501 with SN 2021wyw - 2021-11-19 (T+86.5d)
Image below (2021-11-19.830) was taken 86.5 days after discovery of 2021wyw
Position of reported SN in shown by white cross-hairs
No indication of object at earlier position
SN is assumed to have faded

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-11-19 20:04 UT (#935092-96)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 7501 with SN 2021wyw - 2022-11-25 (T+457.5d)
Image below (2022-11-25.803) was taken 457.5 days after discovery of 2021wyw
Position of earlier reported SN in shown by white cross-hairs
No indication of object at earlier position
SN is assumed to have faded

Annotated CCD Image (150% size, square root scale, cropped)
2 x 180s exposure (average combine), 3x3 binning, Clear Filter
2022-11-25 19:20 UT (#1062059-60)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021xgx - Type Ia Supernova (discovered 2021-08-29) in Spiral Galaxy UGC 10607

UGC 10607 with SN 2021xgx (Hercules)
SN 2021xgx (Type: Ia) discovered 2021-08-29.711 UT by ASAS-SN
Alias: ASASNS-21qp, Gaia21ebg
Discovery Magnitude 17.05 (g-SLOAN filter)
( Rochester Supernova site | Manfred Mrotzek image |
( TNS 2021xgx | Gaia21ebg )

UGC 10607 with SN 2021xgx - 2021-09-06 (T+8.3d)
Image below (2021-09-06.995) was taken 8.3 days after discovery of 2021xgx
SN position (not separately visible) is shown by white cross-hairs.
Measured magnitude (SN + Galaxy Nucleus) +14.23 (Clear Filter)

CCD Image (125% size, log scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-09-06 23:57 UT (#911038-41)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 10607 with SN 2021xgx - 2021-09-07 (T+9.3d)
Image below (2021-09-07.963) was taken 9.3 days after discovery of 2021xgx
SN position (not separately visible) is shown by white cross-hairs.
Measured magnitude (SN + Galaxy Nucleus) +14.21 (Clear Filter)

CCD Image (125% size, log scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-09-07 23:15 UT (#912073-77)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 10607 with SN 2021xgx - 2021-09-08 (T+10.2d)
Image below (2021-09-08.879) was taken 10.2 days after discovery of 2021xgx
Reported SN position is shown by white cross-hairs.
Measured magnitude +15.1 (SN + Galaxy Nucleus)

CCD Image (125% size, square root scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2021-09-08 21:12 UT (#913004-06)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021yal - Type Ia-91T Supernova (discovered 2021-09-05) in PGC 1155307 (Attempt)

PGC 1155307 with SN 2021yal (Taurus)
SN 2021yal (Type: Ia-91T) discovered 2021-09-05.537 UT by ATLAS
Alias: ATLAS21bhuh
Discovery Magnitude 16.92 (cyan-ATLAS Filter)
vs Prior Non-Detection Limiting Magnitude 19.46
(Rochester Supernova site | Mantero Andrea image )
( TNS 2021yal )

PGC 1155307 - Galaxy
PGC 1155307 (catalog mag +16.2)
with adjacent galaxies
PGC 1154706 (catalog mag +16.8), PGC 1154123 (catalog mag +17.2)
Bright star in FOV is HD 21053 (mag +9.3)

Annotated CCD Image (100% size, square root scale, cropped)
2 x 180s exposure (average combine), 3x3 binning, C Filter
2021-09-30 02:37 UT (#918270-71)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021yal - 2021-09-30 (T+24.6d)
Image below (2021-09-30.107) was taken 24.6 days after discovery of 2021yal
Position of SN (not visible) is shown by white cross-hairs.
Non-Detection Limitig Magnitude +18.0 (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped)
2 x 180s exposure (average combine), 3x3 binning, C Filter
2021-09-30 02:37 UT (#918270-71)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021yok - Type II Supernova (discovered 2021-09-10) in UGC 3873

UGC 3873 with SN 2021yok (Gemini)
SN 2021yok (Type: II) discovered 2021-09-10.577 UT by ATLAS
Alias: ATLAS21bika, Gaia21ehd
(Rochester Supernova site | Odd Trondal image )

CCD Image (50% size, square root scale)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-10-31 04:23 UT (#930240-43)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 3873 with SN 2021yok - 2021-10-31 (T+50.6d)
Image below (2021-10-31.175) was taken 50.6 days after discovery of 2021yok
Supernova (faint) is shown by white cross-hairs

CCD Image (125% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-10-31 04:23 UT (#930240-43)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021zby - Type II Supernova (discovered 2021-09-17) in NGC 1166

NGC 1166 with SN 2021zby (Aries)
SN 2021zby (Type: II) discovered 2021-09-17.453 UT by ATLAS
Alias: ATLAS21bixf
( Rochester Supernova site | Enrico Prosperi image )

CCD Image (50% size, square root scale)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-10-30 23:03 UT (#930090-94)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 1166 with SN 2021zby - 2021-09-20 (T+2.6d)
Image below (2021-09-20.065) was taken 2.6 days after discovery of 2021zby
Position of supernova (faint) is shown by white cross-hairs
Estimated Magnitude +16.7 (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-09-20 01:43 UT (#914117-21)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 1166 with SN 2021zby - 2021-09-21 (T+4.5d)
Image below (2021-09-21.987) was taken 4.5 days after discovery of 2021zby
Position of supernova (faint) is shown by white cross-hairs
Poor quality image (poor transparency, low S/N)

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-09-21 23:49 UT (#915182-86)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 1166 with SN 2021zby - 2021-09-28 (T+10.7d)
Image below (2021-09-28.144) was taken 10.7 days after discovery of 2021zby
Supernova (faint) is shown by white cross-hairs
Poor quality image (single frame & poor sky conditions)

Annotated CCD Image (150% size, square root scale, cropped)
180s exposure (single frame), 3x3 binning, C Filter
2021-09-28 03:43 UT (#917292)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 1166 with SN 2021zby - 2021-09-29 (T+12.5d)
Image below (2021-09-29.975) was taken 12.5 days after discovery of 2021zby
Position of SN (faint) is shown by white cross-hairs
Estimated Magnitude +17.0 (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-09-29 23:33 UT (#918150-54)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 1166 with SN 2021zby - 2021-10-04 (T+16.7d)
Image below (2021-10-04.114) was taken 16.7 days after discovery of 2021zby
Position of SN (faint) is shown by white cross-hairs
Estimated Magnitude +16.8 (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-10-04 02:52 UT (#920173-77)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 1166 with SN 2021zby - 2021-10-05 (T+17.7d)
Image below (2021-10-05.115) was taken 17.7 days after discovery of 2021zby
Position of SN (faint) is shown by white cross-hairs
Measured Magnitude +15.89 (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-10-05 02:54 UT (#921212-16)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 1166 with SN 2021zby - 2021-10-10 (T+22.5d)
Image below (2021-10-10.003) was taken 22.5 days after discovery of 2021zby
Position of SN (faint) is shown by white cross-hairs
Measured Magnitude +15.86 (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2021-10-10 00:10 UT (#922013-15)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 1166 with SN 2021zby - 2021-10-15 (T+27.7d)
Image below (2021-10-15.149) was taken 27.7 days after discovery of 2021zby
Position of SN (faint) is shown by white cross-hairs
Estimated Magnitude +16.7 (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2021-10-15 03:39 UT (#925150-52)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 1166 with SN 2021zby - 2021-10-25 (T+37.7d)
Image below (2021-10-25.162) was taken 37.7 days after discovery of 2021zby
Position of SN (faint) is shown by white cross-hairs
Poor quality image (poor seeing, single frame)

Annotated CCD Image (150% size, square root scale, cropped)
180s exposure (single frame), 3x3 binning, C Filter
2021-10-25 03:53 UT (#927142)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 1166 with SN 2021zby - 2021-10-30 (T+43.5d)
Image below (2021-10-30.954) was taken 43.5 days after discovery of 2021zby
Supernova (faint) is shown by white cross-hairs

CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-10-30 23:03 UT (#930090-94)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 1166 with SN 2021zby - 2021-11-15 (T+59.5d)
Image below (2021-11-15.969) was taken 59.5 days after discovery of 2021zby
Image quality poor (high cloud & bright moonlit sky).
No sign of earlier supernova (either faded or noise levels too high for detection

Annotated CCD Image (150% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-11-15 23:23 UT (#933061-64)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 1166 with SN 2021zby - 2021-11-28 (T+72.5d)
Image below (2021-11-28.942) was taken 72.5 days after discovery of 2021zby
Supernova (very faint) is shown by white cross-hairs
Poor quality image (poor guiding / single frame)

Annotated CCD Image (150% size, square root scale, cropped)
180s exposure (single frame), 3x3 binning, C Filter
2021-11-28 22:39 UT (#938066)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021zju - Type Ib Supernova (discovered 2021-09-24) in NGC 9

NGC 9 with SN 2021zju (Pegasus)
SN 2021zju (Type: Ib) discovered 2021-09-24.483 UT by ATLAS
Alias: ATLAS21bjbm, ZTF21acdxhuv
(Rochester Supernova site | Enrico Prosperi image )

CCD Image (50% size, square root scale)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-10-31 02:57 UT (#930176-80)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 9 with SN 2021zju - 2021-09-27 (T+3.3d)
Image below (2021-09-27.811) was taken 3.3 days after discovery of 2021zju
Supernova is shown by white cross-hairs

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-09-27 19:38 UT (#917003-07)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 9 with SN 2021zju - 2021-09-29 (T+5.5d)
Image below (2021-09-29.962) was taken 5.5 days after discovery of 2021zju
Position of SN (faint) is shown by white cross-hairs
Estimated Magnitude +16.8 (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-09-29 23:12 UT (#918142-45)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 9 with SN 2021zju - 2021-10-04 (T+10.5d)
Image below (2021-10-04.990) was taken 10.5 days after discovery of 2021zju
Position of SN (faint) is shown by white cross-hairs
Estimated Magnitude +16.6 (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-10-04 23:53 UT (#921132-35)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 9 with SN 2021zju - 2021-10-10 (T+15.6d)
Image below (2021-10-10.061) was taken 15.6 days after discovery of 2021zju
Position of SN (faint) is shown by white cross-hairs
Estimated Magnitude +16.7 (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped)
2 x 180s exposure (average combine), 3x3 binning, C Filter
2021-10-10 01:31 UT (#922043-44)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 9 with SN 2021zju - 2021-10-25 (T+30.5d)
Image below (2021-10-25.024) was taken 30.5 days after discovery of 2021zju
Position of SN (faint) is shown by white cross-hairs
Estimated Magnitude +16.9 (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2021-10-25 00:42 UT (#927067-71)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 9 with SN 2021zju - 2021-10-30 (T+35.5d)
Image below (2021-10-30.017) was taken 35.5 days after discovery of 2021zju
Position of SN (faint) is shown by white cross-hairs

Annotated CCD Image (150% size, square root scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2021-10-30 00:32 UT (#929073-76)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 9 with SN 2021zju - 2021-10-31 (T+36.6d)
Image below (2021-10-31.117) was taken 36.6 days after discovery of 2021zju
Supernova (faint) is shown by white cross-hairs

CCD Image (150% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-10-31 02:57 UT (#930176-80)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 9 with SN 2021zju - 2021-11-19 (T+56.4d)
Image below (2021-11-19.879) was taken 56.4 days after discovery of 2021zju
Position of earlier supernova is shown by white cross-hairs

Annotated CCD Image (150% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-11-19 21:14 UT (#935130-33)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 9 with SN 2021zju - 2021-11-23 (T+60.3d)
Image below (2021-11-23.798) was taken 60.3 days after discovery of 2021zju
Position of SN (faint) is shown by white cross-hairs

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-11-23 19:18 UT (#936065-69)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 9 with SN 2021zju - 2021-11-24 (T+61.4d)
Image below (2021-11-24.877) was taken 61.4 days after discovery of 2021zju
Position of supernova (faint) is shown by white cross-hairs

Annotated CCD Image (150% size, square root scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2021-11-24 21:15 UT (#937155-57)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021aalq - Type II Supernova (discovered 2021-10-03) in WISEA J095040.62+475756.9

WISEA J095040.62+475756.9 with SN 2021aalq (Ursa Major)
SN 2021aalq (Type: II) discovered 2021-10-03.620 UT by ASAS-SN
Alias: ASASSN-21sj, Gaia21etp
[ TNS 2021aalq ]

WISEA J095040.62+475756.9 - Galaxy

Annotated CCD Image (100% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2022-01-09 04:05 UT (#951080-84)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

WISEA J095040.62+475756.9 with SN 2021aalq - 2022-01-09 (T+97.5d)
Image below (2022-01-09.163) was taken 97.5 days after discovery of 2021aalq
Position of SN (faint) is indicated by white cross hairs.

Annotated CCD Image (125% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2022-01-09 04:05 UT (#951080-84)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

WISEA J095040.62+475756.9 with SN 2021aalq - 2022-01-09, Detail (T+97.5d)

Annotated CCD Image (200% size, square root scale, cropped)
Image details as above

SN 2021aazm - Type II Supernova (discovered 2021-10-09) in UGC 235

UGC 235 with SN 2021aazm (Andromeda)
SN 2021aazm (Type: II) discovered 2021-10-09.830 UT by XOSS
Alias: XM75HT
Discovery Magnitude 18.32 (Clear Filter)
(Rochester Supernova site | Stan Howerton image | TNS 2021aazm )

UGC 235 - Spiral Galaxy

CCD Image (50% size, square root scale)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-11-03 22:11 UT (#931045-49)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 235 with SN 2021aazm - 2021-10-25 am (T+15.3d)
Image below (2021-10-25.094) was taken 15.3 days after discovery of 2021aazm
Position of supernova (very faint) is shown by white cross-hairs
Measured Magnitude +18.29 (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-10-25 02:24 UT (#927110-14)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 235 with SN 2021aazm - 2021-10-25 pm (T+16.0d)
Image below (2021-10-25.849) was taken 16.0 days after discovery of 2021aazm
Position of supernova (very faint) is shown by white cross-hairs
Estimated Magnitude +18.5 (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-10-25 20:31 UT (#928048-52)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 235 with SN 2021aazm - 2021-10-30 (T+20.2d)
Image below (2021-10-30.050) was taken 20.2 days after discovery of 2021aazm
Position of supernova (very faint) is shown by white cross-hairs
Estimated Magnitude +18.8 (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-10-30 01:21 UT (#929102-06)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 235 with SN 2021aazm - 2021-10-30 (T+21.1d)
Image below (2021-10-30.906) was taken 21.1 days after discovery of 2021aazm
Supernova (very faint) shown by white cross-hairs

CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-10-30 21:55 UT (#930051-55)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 235 with SN 2021aazm - 2021-11-03 (T+25.1d)
Image below (2021-11-03.917) was taken 25.1 days after discovery of 2021aazm
Supernova (very faint) shown by white cross-hairs

CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-11-03 22:11 UT (#931045-49)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021abcw - Type Ibn Supernova (discovered 2021-10-11) in UGC 5751

UGC 5751 with SN 2021abcw (Leo)
SN 2021abcw (Type: Ibn) discovered 2021-10-11.480 UT by ASAS-SN
Alias: ASASSN-21td, Gaia21ewv
Discovery Magnitude 17.2 (g-Sloan Filter)
vs Prior Non-Detection Limiting Magnitude 17.5
Gaia, 2021-10-26 06:06:32, Mag 18.60
Gaia, 2021-11-19 13:50:35, Mag 19.95
(Rochester Supernova site | Discovery Image )
( TNS 2021abcw | Gaia21ewv )

UGC 5751 with SN 2021abcw
UGC 5731 / PGC 31388 (catalog mag +14.7)
with adjacent galaxies
PGC 31434 (catalog mag +14.9), PGC 31394 (catalog mag +15.9)
PGC 31386 (catalog mag +15.6), PGC 1643010 (catalog mag +16.6),
PGC 1642183 (catalog mag +17.6), PGC 1641820 (catalog mag +18.0)

Annotated CCD Image (50% size, square root scale)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-11-17 04:09 UT (#934206-10)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 5751 with SN 2021abcw - 2021-10-23 (T+11.7d)
Image below (2021-10-23.197) was taken 11.7 days after discovery of 2021abcw
SN (not visible) shown by white cross-hairs
Very poor quality image (bright sky background, low S/N)

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-10-23 04:53 UT (#926225-29)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 5751 with SN 2021abcw - 2021-10-25 (T+13.7d)
Image below (2021-10-25.228) was taken 13.7 days after discovery of 2021abcw
SN (very faint) is shown by white cross-hairs
Measured Magnitude +17.24 (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2021-10-25 05:33 UT (#927209-11)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 5751 with SN 2021abcw - 2021-11-17 (T+36.7d)
Image below (2021-11-17.167) was taken 36.7 days after discovery of 2021abcw
SN (faint) shown by white cross-hairs

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-11-17 04:09 UT (#934206-10)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 5751 with SN 2021abcw - 2021-11-20 (T+39.7d)
Image below (2021-11-20.135) was taken 39.7 days after discovery of 2021abcw
Poor quality low signal-to-noise image (cloud & single frame).
Earlier SN position shown by white cross-hairs

Annotated CCD Image (150% size, square root scale, cropped)
180s exposure (single frame), 3x3 binning, C Filter
2021-11-20 03:17 UT (#935199)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 5751 with SN 2021abcw - 2021-11-24 (T+43.7d)
Image below (2021-11-24.185) was taken 43.7 days after discovery of 2021abcw
Position of reported SN (not visible) is shown by white cross-hairs

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-11-24 04:36 UT (#936289-93)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021abjr - Type Ia Supernova (discovered 2021-10-13) in WISEA J102139.24+062408.7

SN 2021abjr (Leo)
Alias: In WISEA J102139.24+062408.7
SN 2021abjr (Type: Ia) discovered 2021-10-13.620 UT by ASAS-SN
Alias: ASASSN-21tf
( Rochester Supernova site )

WISEA J102139.24+062408.7 with SN 2021abjr - 2022-01-27 (T+106.4d)
Image below (2022-01-27.992) was taken 106.4 days after discovery of 2021abjr
Position of earlier SN (faint / indistinguishable ?) is shown by white cross-hairs

Annotated CCD Image (100% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2022-01-27 23:57 UT (#960088-91)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

WISEA J102139.24+062408.7 with SN 2021abjr - 2022-03-21 (T+159.4d)
Image below (2022-03-21.988) was taken 159.4 days after discovery of 2021abjr
Position of earlier SN (faint / indistinguishable ?) is shown by white cross-hairs

Annotated CCD Image (100% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2022-03-21 23:50 UT (#991110-13)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021abkm - Type II Supernova (discovered 2021-10-14) in NGC 6627

NGC 6627 with SN 2021abkm (Hercules)
SN 2021abkm (Type: II) discovered 2021-10-14.208 UT by ATLAS
Alias: ATLAS21bkcp, Gaia21ewt
Discovery Magnitude 18.15 (orange-ATLAS Filter)
vs Prior Non-Detection Limiting Magnitude 19.03
Confirmed SN II
Gaia, 2021-10-26 04:19:46, Mag 18.32
Gaia, 2022-02-18 22:00:41, Mag 20.68
Gaia, 2022-03-17 17:43:09, Mag 20.87
(Rochester Supernova site | Enrico Prosperi image )
( TNS 2021abkm | Gaia21ewt )

NGC 6627 with SN 2021abkm (T+40.6d)

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-11-23 18:32 UT (#936019-23)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 6627 with SN 2021abkm - 2021-10-22 (T+8.6d)
Image below (2021-10-22.851) was taken 8.6 days after discovery of 2021abkm
SN (very faint) is shown by white cross-hairs
Poor quality image (bright sky background)

Annotated CCD Image (150% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-10-22 20:33 UT (#926004-07)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 6627 with SN 2021abkm - 2021-10-25 (T+11.6d)
Image below (2021-10-25.797) was taken 11.6 days after discovery of 2021abkm
Position of SN (very faint) is shown by white cross-hairs
Poor quality image (single frame)

Annotated CCD Image (150% size, square root scale, cropped)
180s exposure (single frame), 3x3 binning, C Filter
2021-10-25 19:07 UT (#928019)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 6627 with SN 2021abkm - 2021-11-23 (T+40.6d)
Image below (2021-11-23.766) was taken 40.6 days after discovery of 2021abkm
SN (faint) is shown by white cross-hairs
Object confirmed not to be a known foreground star using Aladin

NGC 6627 with SN 2021abkm - 2021-11-28 (T+45.6d)
Image below (2021-11-28.803) was taken 45.6 days after discovery of 2021abkm
Position of earlier SN (not visible) is shown by white cross-hairs
Due to low altitude & poor guiding the signal/noise ratio in the image
isn't high enough to show the faint SN which was only just visible
at time of last observation (T+40.6d)

Annotated CCD Image (150% size, square root scale, cropped)
2 x 180s exposure (average combine), 3x3 binning, C Filter
2021-11-28 19:22 UT (#938005-06)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021abko - Type Ia Supernova (discovered 2021-10-14) in IC 190

IC 190 (Aries)
IC 190 / PC 7731 (catalog mag +14.2 or + 15.2)
with other galaxies in field of view
IC 189 (catalog mag + 14.1), PGC 7758 (catalog mag +15.7),
PGC 7729 (catalog mag +16.6), PGC 7764 (catalog mag +17.7)

CCD Image (50% size, square root scale)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2021-11-03 21:26 UT (#931030-33)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

IC 190 with SN 2021abko (Aries)
SN 2021abko (Type: Ia) discovered 2021-10-14.520 UT by ASAS-SN
Alias: ASASSN-21tk, ZTF19acetzrc
Discovery Magnitude 16.9 (g-Sloan Filter)
vs Prior Non-Detection Limiting Magnitude 18.0
(Rochester Supernova site | TNS 2021abko )

IC 190 with SN 2021abko - 2021-10-30 (T+16.4d)
Image below (2021-10-30.942) was taken 16.4 days after discovery of 2021abko
Galaxy with supernova shown by white cross-hairs
Measured magnitude of galaxy + SN is +14.55
(vs host galaxy catalog mag of +14.2 or +15.2)
Possible evidence for supernova in the second host galaxy magnitude case

CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-10-30 22:45 UT (#930084-88)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

IC 190 with SN 2021abko - 2021-11-03 (T+20.4d)
Image below (2021-11-03.888) was taken 20.4 days after discovery of 2021abko
Galaxy with supernova shown by white cross-hairs
Measured magnitude of galaxy + SN is +14.6
(vs host galaxy catalog mag of +14.2 or +15.2)
Possible evidence for supernova in the second host galaxy magnitude case

CCD Image (125% size, square root scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2021-11-03 21:26 UT (#931030-33)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

IC 190 with SN 2021abko - 2021-11-09 (T+26.3d)
Image below (2021-11-09.857) was taken 26.3 days after discovery of 2021abko
Galaxy with supernova shown by white cross-hairs
Measured magnitude of galaxy + SN is +14.6
(vs host galaxy catalog mag of +14.2 or +15.2)
Possible evidence for supernova in the second host galaxy magnitude case

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-11-09 20:44 UT (#932038-42)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021abzd - Type Ia 91bg-like (discovered 2021-10-22) in NGC 233 (Attempt)

NGC 233 with SN 2021abzd (Andromeda)
SN 2021abzd (Type: Ia-91bg-like) discovered 2021-10-22.418 UT by ATLAS
Alias: ATLAS21bkka, PS21ljw, ZTF21acincqb
Discovery Magnitude +17.30
( Rochester Supernova site | TNS AT2021abzd )

NGC 233 - Elliptical Galaxy

Annotated CCD Image (50% size, square root scale)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-01-09 20:00 UT (#952083-87)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 233 with SN 2021abzd - 2022-01-09 (T+79.4d)
Image below (2022-01-09.827) was taken 79.4 days after discovery of 2021abzd
Position of reported SN (not visible) is shown by white cross-hairs

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-01-09 20:00 UT (#952083-87)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Negative CCD Image (150% size, square root scale, cropped)
Image details as above

NGC 233 with SN 2021abzd - 2022-11-11 (T+385.5d)
Image below (2022-11-11.906) was taken 385.5 days after discovery of 2021abzd
Position of reported SN (not visible) is shown by white cross-hairs

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2022-11-11 21:54 UT (#1057143-47)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021abze - Type II Supernova (discovered 2021-10-22) in NGC 234

NGC 234 with SN 2021abze (Pisces)
2021abze (Type: SN) discovered 2021-10-22.416 UT by ATLAS
Alias: ATLAS21bkkb, ZTF21aciluqg
Discovery Magnitude +16.63 (orange-ATLAS Filter)
( TNS 2021abze )

NGC 234 - Spiral Galaxy

Annotated CCD Image (50% size, square root scale)
3 x 180s exposure (average combine), 3x3 binning, Clear Filter
2022-11-11 18:47 UT (#1057029-32)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 234 - Detail

Annotated CCD Image (125% size, square root scale, cropped)
Image details as above

Negative CCD Image (125% size, square root scale, cropped)
Image details as above

NGC 234 with SN 2021abze - 2022-11-11 (T+385.4d)
Image below (2022-11-11.778) was taken 385.4 days after discovery of 2021abze
Position of earlier SN (not separately visible) is shown by white cross-hairs

Annotated CCD Image (125% size, square root scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, Clear Filter
2022-11-11 18:47 UT (#1057029-32)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021aceu - Type Ia Supernova (discovered 2021-10-22) in UGC 811

UGC 811 with SN 2021aceu (Andromeda)
SN 2021aceu (Type: Ia) discovered 2021-10-22.320 UT by ASAS-SN
Alias: ASASSN-21tu
(Rochester Supernova site | Discovery Image )

UGC 811 / PGC 4579

Annotated CCD Image (50% size, square root scale)
2 x 180s exposure (average combine), 3x3 binning, C Filter
2021-11-15 22:47 UT (#933045-46)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 811 with SN 2021aceu - 2021-11-15 (T+24.6d)
Image below (2021-11-15.944) was taken 24.6 days after discovery of 2021aceu

SN position shown by white cross-hairs is very close to center of host galaxy
Measured magnitude +15.2 (galaxy + SN)
vs +15.9 (galaxy's catalog mag)

Annotated CCD Image (125% size, square root scale, cropped)
2 x 180s exposure (average combine), 3x3 binning, C Filter
2021-11-15 22:47 UT (#933045-46)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021aclv (?) - Type Ia Supernova (discovered 2021-10-30) in NGC 327

NGC 327 (Cetus)
with adjacent galaxies
NGC 327 (catalog mag +13.5)
NGC 329 (catalog mag +14.3), NGC 325 (catalog mag +14.8),
PGC 3435 (catalog mag +14.6), NGC 321 (catalog mag +15.0)

Annotated CCD Image (50% size, square root scale)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-11-03 22:52 UT (#931062-66)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 327 with SN SN 2021aclv (Cetus)
SN 2021aclv (Type: Ia) discovered 2021-10-30.214 UT by ZTF
Alias: ZTF21acjeegy
(Rochester Supernova site )

NGC 327 with SN 2021aclv - 2021-11-03 (T+4.7d)
Image below (2021-11-03.947) was taken 4.7 days after reported discovery of 2021aclv
Supernova's reported position is shown by white cross-hairs

It is not possible to demonstrate presence of SN as it is
too close to the host galaxy's nucleus and too dim
Measured magnitude +15.2 (nucleus + SN)
vs Host Galaxy catalog mag (+13.5 or +14.1)
& SN reported magnitude at discovery (+17.3)
The bright object lying above the galaxy is confirmed to be a star (Aladin)

Annotated CCD Image (100% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-11-03 22:52 UT (#931062-66)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 327 with SN 2021aclv - 2021-11-19 (T+20.6d)
Image below (2021-11-19.851) was taken 20.6 days after reported discovery of 2021aclv
Supernova's reported position is shown by white cross-hairs
Measured magnitude +15.2 (nucleus + SN), no change
vs Host Galaxy catalog mag (+13.5 or +14.1)

Annotated CCD Image (100% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-11-19 20:36 UT (#935109-13)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 327 with SN 2021aclv - 2021-11-23 (T+24.6d)
Image below (2021-11-23.813) was taken 24.6 days after reported discovery of 2021aclv
Supernova's reported position is shown by white cross-hairs
Measured magnitude +15.2 (nucleus + SN) , no change
vs Host Galaxy catalog mag (+13.5 or +14.1)
& SN reported magnitude at discovery (+17.3)

Annotated CCD Image (100% size, square root scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2021-11-23 19:37 UT (#936074-76)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021adpe - Type Ia Supernova (discovered 2021-11-04) in UGC 8975

UGC 8975 with SN 2021adpe (Canes Venatici)
2021adpe (Type: Ia, z=0.009) discovered 2021-11-04.975 UT by Gaia
Alias: Gaia21fas, Mag +17.76 at discovery
(Rochester Supernova site | Gaia21fas )

Annotated CCD Image (50% size, square root scale)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-11-17 05:48 UT (#934261-65)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 8975 with SN 2021adpe - 2021-11-17 (T+12.3d)
Image below (2021-11-17.235) was taken 12.3 days after discovery of 2021adpe

Position of reported Candiate SN shown by white cross-hairs
Measured Magnitude ?
(unable to extract object in CCDSoft/Sextractor)

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-11-17 05:48 UT (#934261-65)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 8975 with SN 2021adpe - 2021-11-24 (T+19.8d)
Image below (2021-11-24.747) was taken 19.8 days after discovery of 2021adpe

Position of earlier SN shown by white cross-hairs
Image quality very poor due to wind vibration / poor seeing

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-11-24 18:05 UT (#937012-16)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 8975 with SN 2021adpe - 2022-01-02 (T+58.3d)
Image below (2022-01-02.240) was taken 58.3 days after discovery of 2021adpe

Position of SN (very faint) is shown by white cross-hairs

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-01-02 05:55 UT (#947280-84)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 8975 with SN 2021adpe - 2022-01-04 (T+60.1d)
Image below (2022-01-04.074) was taken 60.1 days after discovery of 2021adpe

Position of SN (very faint) shown by white cross-hairs

Annotated CCD Image (150% size, square root scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2022-01-04 01:54 UT (#948138-40)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 8975 with SN 2021adpe - 2022-01-06 (T+62.2d)
Image below (2022-01-06.197) was taken 62.2 days after discovery of 2021adpe
Position of SN (very faint) shown by white cross-hairs

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-01-06 04:52 UT (#949113-17)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 8975 with SN 2021adpe - 2022-01-09 (T+65.3d)
Image below (2022-01-09.240) was taken 65.3 days after discovery of 2021adpe
Position of SN (very faint) shown by white cross-hairs

Annotated CCD Image (150% size, square root scale, cropped)
2 x 180s exposure (average combine), 3x3 binning, C Filter
2022-01-09 05:49 UT (#951118-19)
12" LX200R (at f/10.4) + ST-10XME
Unguided

UGC 8975 with SN 2021adpe - 2022-01-11 (T+67.3d)
Image below (2022-01-11.247) was taken 67.3 days after discovery of 2021adpe
Position of SN (very faint) shown by white cross-hairs

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-01-11 06:04 UT (#953048-52)
12" LX200R (at f/10.4) + ST-10XME
Unguided

UGC 8975 with SN 2021adpe - 2022-01-26 (T+82.2d)
Image below (2022-01-26.152) was taken 82.2 days after discovery of 2021adpe
Position of ear;ier SN (not visible / not distinguishable) shown by white cross-hairs
Poor quality image (passing cloud)

Annotated CCD Image (150% size, square root scale, cropped)
2 x 180s exposure (average combine), 3x3 binning, C Filter
2022-01-26 03:49 UT (#959152-54)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 8975 with SN 2021adpe - 2022-01-29 (T+85.2d)
Image below (2022-01-29.156) was taken 85.2 after discovery of 2021adpe
Position of SN (no longer visible) shown by white cross-hairs

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-01-29 03:55 UT (#961126-30)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021aefs - Type II Supernova (discovered 2021-11-09) in NGC 3836

NGC 3836 with SN 2021aefs (Crater)
SN 2021aefs (Type: II) discovered 2021-11-09.272 UT by Gaia
Alias: Gaia21fch
Transient Alert triggered at mag +18.36
( Rochester Supernova site | Gaia21fch )

NGC 3836 - Spiral Galaxy

Annotated CCD Image (50% size, square root scale)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-03-05 01:46 UT (#981041-45)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 3836 with SN 2021aefs - 2021-12-17 (T+38.0d)
Image below (2021-12-17.224) was taken 38.0 days after discovery of 2021aefs
Poor quality image - single unguided frame / bright sky

CCD Image (100% size, square root scale, cropped)
180s exposure (single frame), 3x3 binning, C Filter
2021-12-17 05:38 UT (#942340)
12" LX200R (at f/10.4) + ST-10XME
Non-Guided

NGC 3836 with SN 2021aefs - 2022-03-05 (T+115.8d)
Image below (2022-03-05.067) was taken 115.8 days after discovery of 2021aefs
Position of earlier SN (presumed to have faded) in shown by white cross-hais

CCD Image (100% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-03-05 01:46 UT (#981041-45)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 3836 with SN 2021aefs - 2022-03-06 (T+116.7d)
Image below (2022-03-06.020) was taken 116.7 days after discovery of 2021aefs
Position of earlier SN (presumed to have faded) in shown by white cross-hais

CCD Image (100% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-03-06 00:39 UT (#982138-42)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021afkk - Type II Supernova (discovered 2021-11-25) in UGC 1971

UGC 1971 with SN 2021afkk (Triangulum)
SN 2021afkk (Type: II) discovered 2021-11-25.371 UT by ATLAS
Alias: ATLAS21bmvp.
Magnitude +18.2 at discovery. Distance 196 Mly (60 Mpc)
( Rochester Supernova site | AstroNote ATLAS21bmvp )

UGC 1971 with SN 2021afkk (T+3.7d)

Annotated CCD Image (550% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-11-29 01:27 UT (#938102-06)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 1971 with SN 2021afkk - 2021-11-29 (T+3.7d)
Image below (2021-11-29.054) was taken 3.7 days after discovery of 2021afkk
Supernova (very faint) is shown by white cross-hairs
Measured magnitude +15.0 (SN + Galaxy Nucleus)
Poor quality image (poor signal/noise)

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-11-29 01:27 UT (#938102-06)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 1971 with SN 2021afkk - 2021-12-17 (T+22.4d)
Image below (2021-12-17.815) was taken 22.4 days after discovery of 2021afkk
Supernova reported position is shown by white cross-hairs
Measured magnitude +15.0 (SN + Galaxy Nucleus) - unchanged since T+3.7d
Poor quality image (bright sky background)

Annotated CCD Image (125% size, square root scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2021-12-17 19:43 UT (#943037-39)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 1971 with SN 2021afkk - 2021-12-28 (T+33.6d)
Image below (2021-12-28.966) was taken 33.6 days after discovery of 2021afkk
Supernova reported position is shown by white cross-hairs
Measured magnitude +15.25 (SN + Galaxy Nucleus) - fading ?

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-12-28 23:20 UT (#945083-87)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 1971 with SN 2021afkk - 2022-01-02 (T+37.7d)
Image below (2022-01-02.075) was taken 37.7 days after discovery of 2021afkk
Supernova reported position is shown by white cross-hairs
Measured magnitude +15.33 (SN + Galaxy Nucleus) - fading

Annotated CCD Image (125% size, square root scale, cropped)
2 x 180s exposure (average combine), 3x3 binning, C Filter
2022-01-02 01:55 UT (#947201-03)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 1971 with SN 2021afkk - 2022-01-05 (T+41.5d)
Image below (2022-01-05.858) was taken 41.5 days after discovery of 2021afkk
Supernova reported position is shown by white cross-hairs
Measured magnitude +15.31 (SN + Galaxy Nucleus)

Annotated CCD Image (125% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2022-01-05 20:46 UT (#949045-49)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 1971 with SN 2021afkk - 2022-01-07 (T+43.6d)
Image below (2022-01-07.984) was taken 43.6 days after discovery of 2021afkk
Supernova reported position is shown by white cross-hairs
Measured magnitude +15.34 (SN + Galaxy Nucleus)

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-01-07 23:46 UT (#950137-41)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 1971 with SN 2021afkk - 2022-01-09 am (T+44.7d)
Image below (2022-01-09.035) was taken 44.7 days after discovery of 2021afkk
Supernova reported position is shown by white cross-hairs
Measured magnitude +15.38 (SN + Galaxy Nucleus)

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-01-09 01:00 UT (#951003-07)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 1971 with SN 2021afkk - 2022-01-09 pm (T+45.4d)
Image below (2022-01-09.792) was taken 45.4 days after discovery of 2021afkk
Supernova reported position is shown by white cross-hairs
Measured magnitude +15.38 (SN + Galaxy Nucleus), Unchanged

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-01-09 19:11 UT (#952058-62)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021afsj - Type Ia Supernova (discovered 2021-11-29) in UGC 4671

UGC 4671 with SN 2021afsj (Ursa Major)
SN 2021afsj (Type: Ia) discovered 2021-11-29.718 UT by Shuji Tokuoka
Alias: Gaia21flf, ZTF21acqstfo
( Rochester Supernova site | Gaia21flf )

Annotated CCD Image (50% size, square root scale)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2021-12-16 23:56 UT (#942179-82)
12" LX200R (at f/10.4) + ST-10XME
Non-guided

UGC 4671 with SN 2021afsj - 2021-12-16 (T+17.3d)
Image below (2021-12-16.989) was taken 17.3 days after discovery of 2021afsj
Position of SN is shown by white cross-hairs
Measured magnitude +14.0

Annotated CCD Image (125% size, square root scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2021-12-16 23:56 UT (#942179-82)
12" LX200R (at f/10.4) + ST-10XME
Non-guided

UGC 4671 with SN 2021afsj - 2021-12-29 (T+29.3d)
Image below (2021-12-29.062) was taken 29.3 days after discovery of 2021afsj
Position of SN is shown by white cross-hairs
Measured magnitude +14.6

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-12-29 01:38 UT (#945141-45)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 4671 with SN 2021afsj - 2022-01-03 (T+35.3d)
Image below (2022-01-03.981) was taken 35.3 days after discovery of 2021afsj
Position of SN is shown by white cross-hairs
Measured magnitude +14.7 (fading)

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-01-03 23:42 UT (#948107-11)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 4671 with SN 2021afsj - 2022-01-06 (T+37.5d)
Image below (2022-01-06.210) was taken 37.5 days after discovery of 2021afsj
Position of SN is shown by white cross-hairs

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-01-06 05:12 UT (#949120-24)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 4671 with SN 2021afsj - 2022-01-08 (T+39.3d)
Image below (2022-01-08.021) was taken 39.3 days after discovery of 2021afsj
Position of SN is shown by white cross-hairs
Measured magnitude ? (unable to measure)

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-01-08 00:39 UT (#950162-66)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 4671 with SN 2021afsj - 2022-01-09 (T+40.4d)
Image below (2022-01-09.122) was taken 40.4 days after discovery of 2021afsj
Position of SN is shown by white cross-hairs
Measured magnitude ? (unable to measure)

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-01-09 03:05 UT (#951055-59)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 4671 with SN 2021afsj - 2022-01-11 (T+42.5d)
Image below (2022-01-11.231) was taken 42.5 days after discovery of 2021afsj
Position of SN is shown by white cross-hairs
Measured magnitude ? (unable to measure)

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-01-11 05:42 UT (#953041-45)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 4671 with SN 2021afsj - 2022-01-22 (T+53.3d)
Image below (2022-01-22.006) was taken 53.3 days after discovery of 2021afsj
Position of SN is shown by white cross-hairs

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-01-22 00:18 UT (#957224-28)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 4671 with SN 2021afsj - 2022-01-28 (T+60.2d)
Image below (2022-01-28.955) was taken 60.2 days after discovery of 2021afsj
Position of SN is shown by white cross-hairs

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-01-28 23:04 UT (#961017-21)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 4671 with SN 2021afsj - 2022-02-04 (T+67.1d)
Image below (2022-02-04.863) was taken 67.1 days after discovery of 2021afsj
Position of SN is shown by white cross-hairs

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-02-04 20:52 UT (#963063-67)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 4671 with SN 2021afsj - 2022-02-05 (T+68.2d)
Image below (2022-02-05.895) was taken 68.2 days after discovery of 2021afsj
Position of SN is shown by white cross-hairs

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-02-05 21:39 UT (#964067-71)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 4671 with SN 2021afsj - 2022-02-06 (T+69.2d)
Image below (2022-02-06.949) was taken 69.2 days after discovery of 2021afsj
Position of SN (visible) is shown by white cross-hairs

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-02-06 22:56 UT (#965053-57)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 4671 with SN 2021afsj - 2022-02-07 (T+70.1d)
Image below (2022-02-07.826) was taken 70.1 days after discovery of 2021afsjj
Position of SN is shown by white cross-hairs

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-02-07 19:58 UT (#966036-40)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 4671 with SN 2021afsj - 2022-02-08 (T+71.3d)
Image below (2022-02-08.976) was taken 71.3 days after discovery of 2021afsj
Position of SN is shown by white cross-hairs

Annotated CCD Image (125% size, square root scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2022-02-08 23:36 UT (#967074-78)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 4671 with SN 2021afsj - 2022-02-11 (T+73.4d)
Image below (2022-02-11.080) was taken 73.4 days after discovery of 2021afsj
Position of SN is shown by white cross-hairs

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-02-11 02:05 UT (#969082-86)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 4671 with SN 2021afsj - 2022-03-05 (T+96.2d)
Image below (2022-03-05.917) was taken 96.2 days after discovery of 2021afsj
Position of SN (faint) is shown by white cross-hairs

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-03-05 22:09 UT (#982078-82)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 4671 with SN 2021afsj - 2022-03-20 (T+110.3d)
Image below (2022-03-20.049) was taken 110.3 days after discovery of 2021afsj
Position of SN (very faint) is shown by white cross-hairs

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-03-20 01:20 UT (#989142-46)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 4671 with SN 2021afsj - 2022-03-21 (T+112.2d)
Image below (2022-03-21.878) was taken 112.2 days after discovery of 2021afsj
Position of SN (very faint) is shown by white cross-hairs

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-03-21 21:14 UT (#991041-45)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 4671 with SN 2021afsj - 2022-03-23 (T+114.2d)
Image below (2022-03-23.893) was taken 114.2 days after discovery of 2021afsj
Position of SN (very faint) is shown by white cross-hairs

Annotated CCD Image (125% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2022-03-23 21:36 UT (#993022-26)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021agco - Type II Supernova (discovered 2021-12-05) in UGC 3855

UGC 3855 with SN 2021agco (Lynx)
SN 2021agco (Type: II) discovered 2021-12-05.564 UT by XOSS
Alias: PSP21al
( Rochester Supernova site | Andrea Mantero image | Jordi Camarasa image)

Annotated CCD Image (50% size, square root scale)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2021-12-17 04:17 UT (#942298-301)
12" LX200R (at f/10.4) + ST-10XME
Non-guided

UGC 3855 with SN 2021agco - 2021-12-17 (T+11.6d)
Image below (2021-12-17.172) was taken 11.6 days after discovery of 2021agco
Position of reported SN (very faint) is shown by white cross-hairs

Annotated CCD Image (125% size, square root scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2021-12-17 04:17 UT (#942298-301)
12" LX200R (at f/10.4) + ST-10XME
Non-guided

No sign of SN object at reported position
(SN has either faded or is not visible due to failed guiding/ sky noise)

Negative CCD Image (125% size, square root scale, cropped)
Image details as above

UGC 3855 with SN 2021agco - 2021-12-29 (T+23.5d)
Image below (2021-12-29.028) was taken 23.5 days after discovery of 2021agco
Position of reported SN (very faint/not visible) is shown by white cross-hairs

Annotated CCD Image (125% size, square root scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2021-12-29 00:48 UT (#945120-23)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 3855 with SN 2021agco - 2021-12-29 (T+24.4d)
Image below (2021-12-29.964) was taken 24.4 days after discovery of 2021agco
Position of reported SN (very faint or not visible) is shown by white cross-hairs

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-12-29 23:17 UT (#946079-83)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 3855 with SN 2021agco - 2022-01-09 (T+34.6d)
Image below (2022-01-09.150) was taken 34.6 days after discovery of 2021agco
Position of reported SN (very faint or not visible) is shown by white cross-hairs

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-01-09 03:45 UT (#951073-77)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 3855 with SN 2021agco - 2022-01-11 (T+36.6d)
Image below (2022-01-11.174) was taken 36.6 days after discovery of 2021agco
Position of reported SN (not visible) is shown by white cross-hairs

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-01-11 04:20 UT (#953003-07)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 3855 with SN 2021agco - 2022-01-14 (T+39.4d)
Image below (2022-01-14.014) was taken 39.4 days after discovery of 2021agco
Position of reported SN (not visible) is shown by white cross-hairs

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-01-14 00:30 UT (#954023-27)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021agdd - Type Ia Supernova (discovered 2021-12-07) in NGC 7446

NGC 7446 with SN 2021agdd (Andromeda)
SN 2021agdd (Type: Ia) discovered 2021-12-07.152 UT by DLT40
Alias: DLT21ag
( Rochester Supernova site | Discovery Image )

NGC 7446 with SN 2021agdd- 2021-12-16 (T+9.7d)
NGC 7446 with adjacent named galaxies NGC 7445 and NGC 7449
plus several other unlabelled galaxies

Annotated CCD Image (50% size, square root scale)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-12-16 19:42 UT (#942013-17)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 7446 with SN 2021agdd - 2021-12-16 (T+9.7d)
Image below (2021-12-16.815) was taken 9.7 days after discovery of 2021agdd
SN is shown by white cross hairs. Measured Magnitude +16.25

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-12-16 19:42 UT (#942013-17)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Negative CCD Image (125% size, square root scale, cropped)
Image details as above

NGC 7446 with SN 2021agdd - 2021-12-28 (T+21.8d)
Image below (2021-12-28.913) was taken 21.8 days after discovery of 2021agdd
SN is shown by white cross hairs.
Measured Magnitude ?? (unable to isolate centroid in CCDSoft)

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-12-28 22:04 UT (#945046-50)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 7446 with SN 2021agdd - 2021-12-29 (T+22.8d)
Image below (2021-12-29.907) was taken 22.8 days after discovery of 2021agdd
SN is shown by white cross hairs.
Measured Magnitude ?? (unable to isolate centroid in CCDSoft)

Annotated CCD Image (125% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-12-29 21:57 UT (#946038-41)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 7446 with SN 2021agdd - 2022-01-01 (T+25.8d)
Image below (2022-01-01.955) was taken 25.8 days after discovery of 2021agdd
SN is shown by white cross hairs.
Measured Magnitude ?? (unable to isolate centroid in CCDSoft)

Annotated CCD Image (125% size, square root scale, cropped)
180s exposure (single frame), 3x3 binning, C Filter
2022-01-01 23:01 UT (#947141)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 7446 with SN 2021agdd - 2022-01-03 (T+27.6d)
Image below (2022-01-03.742) was taken 27.6 days after discovery of 2021agdd
SN is shown by white cross hairs.

Annotated CCD Image (125% size, square root scale, cropped)
2 x 180s exposure (average combine), 3x3 binning, C Filter
2022-01-03 17:54 UT (#948026-27)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 7446 with SN 2021agdd - 2022-01-07 (T+31.6d)
Image below (2022-01-07.786) was taken 31.6 days after discovery of 2021agdd
SN (faint) is shown by white cross hairs.

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-01-07 19:01 UT (#950041-45)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 7446 with SN 2021agdd - 2022-01-13 (T+37.8d)
Image below (2022-01-13.990) was taken 37.8 days after discovery of 2021agdd
Position of earlier SN (not visible) is shown by white cross hairs.
Image affected by poor seeing or poor focus

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-01-13 23:54 UT (#954003-07)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 7446 with SN 2021agdd - 2022-01-21 (T+45.7d)
Image below (2022-01-21.866) was taken 45.7 days after discovery of 2021agdd
Position of earlier SN (now very faint) is shown by white cross hairs.

Annotated CCD Image (125% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2022-01-21 20:56 UT (#957113-17)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021aggu - Type Ia Supernova (discovered 2021-12-12) in NGC 2761

NGC 2761 with SN 2021aggu (Cancer)
SN 2021aggu (Type: Ia) discovered 2021-12-12.757 UT by ATLAS
Alias: ATLAS21bnhv, Gaia21fnr
( Rochester Supernova site | Gaia21fnr | Odd-Trondal image ]

NGC 2761 with SN 2021aggu

Annotated CCD Image (50% size, square root scale)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2021-12-29 03:00 UT (#945180-82)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 2761 with SN 2021aggu - 2021-12-29 (T+16.4d)
Image below (2021-12-29.119) was taken 16.4 days after discovery of 2021aggu
Position of reported SN (faint) is shown by white cross-hairs

Annotated CCD Image (150% size, square root scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2021-12-29 03:00 UT (#945180-82)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 2761 with SN 2021aggu - 2022-01-02 (T+20.3d)
Image below (2022-01-02.053) was taken 20.3 days after discovery of 2021aggu
Position of reported SN (faint) is shown by white cross-hairs

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-01-02 01:26 UT (#947188-92)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 2761 with SN 2021aggu - 2022-01-03 (T+22.2d)
Image below (2022-01-03.920) was taken 22.2 days after discovery of 2021aggu
Position of reported SN (faint) is shown by white cross-hairs

Annotated CCD Image (150% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2022-01-03 22:13 UT (#948068-71)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 2761 with SN 2021aggu - 2022-01-09 (T+27.3d)
Image below (2022-01-09.107) was taken 27.3 days after discovery of 2021aggu
Position of reported SN (faint but distinct) is shown by white cross-hairs

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-01-09 02:43 UT (#951048-52)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 2761 with SN 2021aggu - 2022-01-11 (T+29.4d)
Image below (2022-01-11.201) was taken 29.4 days after discovery of 2021aggu
Position of reported SN (faint but distinct) is shown by white cross-hairs

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-01-11 04:58 UT (#953027-31)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 2761 with SN 2021aggu - 2022-01-22 (T+40.3d)
Image below (2022-01-22.077) was taken 40.3 days after discovery of 2021aggu
Position of reported SN (faded / no longer visible) is shown by white cross-hairs

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-01-22 02:01 UT (#957274-78)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 2761 with SN 2021aggu - 2022-01-23 (T+41.3d)
Image below (2022-01-23.033) was taken 41.3 days after discovery of 2021aggu
Position of reported SN (faded / no longer visible) is shown by white cross-hairs

Annotated CCD Image (150% size, square root scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2022-01-23 00:54 UT (#958121-23)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 2761 with SN 2021aggu - 2022-01-25 (T+44.2d)
Image below (2022-01-25.929) was taken 44.2 days after discovery of 2021aggu
Position of earlier SN (faded / no longer visible) is shown by white cross-hairs

Annotated CCD Image (150% size, square root scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2022-01-25 22:24 UT (#959097-99)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021agpf - Type Ia Supernova (discovered 2021-12-26) in NGC 5732

NGC 5732 with SN 2021agpf (Bootes)
SN 2021agpf (Type: Ia) discovered 2021-12-26.624 UT by ATLAS
Alias: ATLAS21bnoc

( Rochester Supernova site | TNS 2021agpf )

NGC 5732 with SN 2021agpf (T+44.5d)
NGC 5732 / PGC 52438 (catalog mag +14.3)
with adjacent galaxies PGC 3088227 (catalog mag +16.3),
PGC 2134772 (catalog mag +17.4), PGC 2134580 (catalog mag +17.6)

Annotated CCD Image (50% size, square root scale)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-02-09 03:35 UT (#967163-67)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 5732 with SN 2021agpf - 2022-02-09 (T+44.5d)
Image below (2022-02-09.143) was taken 44.5 days after discovery of 2021agpf
Position of SN (bright) is shown by white cross-hairs
Measured magnitude +15.67

CCD Image (125% size,square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-02-09 03:35 UT (#967163-67)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Negative CCD Image (125% size, square root scale, cropped)
Image details as above

NGC 5732 with SN 2021agpf - 2022-02-20 (T+56.4d)
Image below (2022-02-20.978) was taken 56.4 days after discovery of 2021agpf
Position of SN (bright) is shown by white cross-hairs
Measured magnitude +16.23

CCD Image (125% size,square root scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2022-02-20 23:41 UT (#973145-47)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 5732 with SN 2021agpf - 2022-02-23 (T+58.5d)
Image below (2022-02-23.090) was taken 58.5 days after discovery of 2021agpf
Position of SN (bright) is shown by white cross-hairs
Measured magnitude +16.25

CCD Image (125% size,square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-02-23 02:18 UT (#975179-83)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 5732 with SN 2021agpf - 2022-02-24 (T+59.5d)
Image below (2022-02-24.099) was taken 59.5 days after discovery of 2021agpf
Position of SN (bright) is shown by white cross-hairs
Measured magnitude +16.27

CCD Image (125% size,square root scale, cropped)
2 x 180s exposure (average combine), 3x3 binning, C Filter
2022-02-24 02:32 UT (#976155-59)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 5732 with SN 2021agpf - 2022-02-26 (T+62.3d)
Image below (2022-02-26.933) was taken 62.3 days after discovery of 2021agpf
Position of SN (bright) is shown by white cross-hairs
Measured magnitude +16.52

CCD Image (125% size,square root scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2022-02-26 22:34 UT (#977051-55)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 5732 with SN 2021agpf - 2022-03-01 (T+64.6d)
Image below (2022-03-01.213) was taken 64.6 days after discovery of 2021agpf
Position of SN (bright) is shown by white cross-hairs
Measured magnitude +16.48

CCD Image (125% size,square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-03-01 05:15 UT (#979197-201)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 5732 with SN 2021agpf - 2022-03-02 (T+65.5d)
Image below (2022-03-02.090) was taken 65.5 days after discovery of 2021agpff
Position of SN (bright) is shown by white cross-hairs
Measured magnitude +16.52 (fading)

CCD Image (125% size,square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2022-03-02 02:19 UT (#980190-94)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 5732 with SN 2021agpf - 2022-03-05 (T+68.5d)
Image below (2022-03-05.113) was taken 68.5 days after discovery of 2021agpf
Position of SN (bright) is shown by white cross-hairs
Measured magnitude +16.59

CCD Image (125% size,square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-03-05 02:51 UT (#981062-66)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 5732 with SN 2021agpf - 2022-03-06 (T+69.4d)
Image below (2022-03-06.049) was taken 69.4 days after discovery of 2021agpf
Position of SN (bright) is shown by white cross-hairs
Measured magnitude +16.57

CCD Image (125% size,square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-03-06 01:21 UT (#982152-56)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 5732 with SN 2021agpf - 2022-03-07 (T+70.5d)
Image below (2022-03-07.108) was taken 70.5 days after discovery of 2021agpf
Position of SN (bright) is shown by white cross-hairs
Measured magnitude +16.53

CCD Image (125% size,square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-03-07 02:45 UT (#983132-36)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 5732 with SN 2021agpf - 2022-03-07 (T+71.2d)
Image below (2022-03-07.869) was taken 71.2 days after discovery of 2021agpf
Position of SN (bright) is shown by white cross-hairs
Measured magnitude +16.70

CCD Image (125% size,square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-03-07 21:01 UT (#984016-20)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 5732 with SN 2021agpf - 2022-03-15 (T+78.5d)
Image below (2022-03-15.144) was taken 78.5 days after discovery of 2021agpf
Position of SN (fading) is shown by white cross-hairs
Measured magnitude +16.72

CCD Image (125% size,square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-03-15 03:37 UT (#985077-81)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 5732 with SN 2021agpf - 2022-03-18 (T+81.5d)
Image below (2022-03-18.142) was taken 81.5 days after discovery of 2021agpf
Position of SN (fading) is shown by white cross-hairs
Measured magnitude +16.70

CCD Image (125% size,square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-03-18 03:34 UT (#987236-40)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 5732 with SN 2021agpf - 2022-03-19 (T+83.3d)
Image below (2022-03-19.894) was taken 83.3 days after discovery of 2021agpf
Position of SN (fading) is shown by white cross-hairs
Measured magnitude +16.92

CCD Image (125% size,square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-03-19 21:36 UT (#989004-08)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 5732 with SN 2021agpf - 2022-03-22 (T+85.5d)
Image below (2022-03-22.081) was taken 85.5 days after discovery of 2021agpf
Position of SN (fading) is shown by white cross-hairs
Measured magnitude +16.94
(poor sky transparency)

CCD Image (125% size,square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-03-22 02:06 UT (#991155-59)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 5732 with SN 2021agpf - 2022-03-23 (T+86.4d)
Image below (2022-03-23.024) was taken 86.4 days after discovery of 2021agpf
Position of SN (fading) is shown by white cross-hairs
Measured magnitude +16.87

CCD Image (125% size,square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-03-23 00:43 UT (#992113-17)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 5732 with SN 2021agpf - 2022-03-25 (T+88.5d)
Image below (2022-03-25.099) was taken 88.5 days after discovery of 2021agpf
Position of SN (fading) is shown by white cross-hairs
Measured magnitude +16.96

CCD Image (125% size,square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-03-25 02:32 UT (#994111-15)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 5732 with SN 2021agpf - 2022-03-26 (T+89.4d)
Image below (2022-03-26.060) was taken 89.4 days after discovery of 2021agpf
Position of SN (fading) is shown by white cross-hairs
Measured magnitude +16.75

CCD Image (125% size,square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-03-26 01:36 UT (#995111-15)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 5732 with SN 2021agpf - 2022-04-01 (T+95.5d)
Image below (2022-04-01.167) was taken 95.5 days after discovery of 2021agpf
Position of SN (fading) is shown by white cross-hairs
Measured magnitude +16.95

CCD Image (125% size,square root scale, cropped)
2 x 180s exposure (average combine), 3x3 binning, C Filter
2022-04-01 04:06 UT (#997102-03)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 5732 with SN 2021agpf - 2022-04-03 (T+97.5d)
Image below (2022-04-03.113) was taken 97.5 days after discovery of 2021agpf
Position of SN (fading) is shown by white cross-hairs
Measured magnitude +17.12

CCD Image (125% size,square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2022-04-03 02:51 UT (#998092-96)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021agpj - Type Ia Supernova (discovered 2021-12-27) in 2MFGC 03677 (PGC 15364)

2MFGC 03677 with SN 2021agpj (Eridanus)
SN 2021agpj (Type: Ia) discovered 2021-12-27.330 UT by ASAS-SN
Alias: ASASSN-21wg
Discovery Magnitude 16.0
( Rochester Supernova site | TNS 2021agpj )

2MFGC 03677 - Spiral Galaxy
Alias : PGC 15364 (catalog mag +14.8)

Annotated CCD Image (125% size, square root scale, cropped)
180s exposure (single frame), 3x3 binning, C Filter
2022-02-06 19:59 UT (#965011)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

2MFGC 03677 with SN 2021agpj - 2022-02-06 (T+41.5d)
Image below (2022-02-06.831) was taken 41.5 days after discovery of 2021agpj
Position of SN is shown by white cross-hairs

Annotated CCD Image (150% size, square root scale, cropped)
180s exposure (single frame), 3x3 binning, C Filter
2022-02-06 19:59 UT (#965011)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

2MFGC 03677 with SN 2021agpj - 2022-10-29 (T+305.7d)
Image below (2022-10-29.055) was taken 305.7 days after discovery of 2021agpj
Position of earlier SN (no longer visible) is shown by white cross-hairs

Annotated CCD Image (150% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, Clear Filter
2022-10-29 01:27 UT (#1050113-17)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

2MFGC 03677 with SN 2021agpj - 2022-11-05 (T+312.7d)
Image below (2022-11-05.060) was taken 312.7 days after discovery of 2021agpj
Position of earlier SN (no longer visible) is shown by white cross-hairs

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2022-11-05 01:35 UT (#1054219-23)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2021ahot - Type Ia Supernova (discovered 2021-12-30) in LEDA 2156782

LEDA 2156782 with SN 2021ahot (Hercules)
SN 2021ahot (Type: Ia) discovered 2021-12-30.520 UT by ASAS-SN
Alias: ASASSN-21wm, Gaia22ade

( Rochester Supernova site | Gaia22ade )

LEDA 2156782 - Spiral Galaxy

Annotated CCD Image (50% size, square root scale)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2022-03-18 02:08 UT (#987189-92)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

LEDA 2156782 - Detail
LEDA 2156782 / PGC 2156782 (catalog mag +16.4)
with adjacent galaxies
PGC 2157109 (catalog mag +16.0), PGC 2157383 (catalog mag +16.7)

Annotated CCD Image (125% size, square root scale, cropped)
Image details as above

LEDA 2156782 with SN 2021ahot - 2022-03-18 (T+77.6d)
Image below (2022-03-18.083) was taken 77.6 days after discovery of 2021ahot
Position of reported transient (not visible ?) is shown by white cross-hairs

Annotated CCD Image (125% size,square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2022-03-18 02:08 UT (#987189-92)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

This Web Page:	Supernovae - 2021
Last Updated :	2024-11-06
Site Owner :	David Richards
Home Page :	David's Astronomy Web Site

David's Astronomy Pages (Deep Sky) Supernovae - 2021

SN 2021J - Type Ia Supernova (discovered 2021-01-01) in NGC 4414

SN 2021K - Type Ia Supernova (discovered 2021-01-01) in MCG +6-30-84 / PGC 48870

SN 2021pc - Type Ia Supernova (discovered 2021-01-07) in UGC 784

SN 2021nv - Type Ia Supernova (discovered 2021-01-07) in UGC 1436

SN 2021xn - Type Ia Supernova (discovered 2021-01-10) in PGC 6041

SN 2021apf - Type Ia Supernova (discovered 2021-01-16) in CGCG 056-009

SN 2021ass - Type II Supernova (discovered 2021-01-18) in NGC 684

SN 2021bge - Type II Supernova (discovered 2021-01-27) in UGC 2505

SN 2021biz - Type Ia Supernova (discovered 2021-01-29) in NGC 4227

SN 2021bjy - Type Ia Supernova (discovered 2021-01-30) in CGCG 264-017

SN 2021bkw - Type Ia Supernova (discovered 2021-01-31) in LEDA 1634284

SN 2021bug - Type II Supernova (discovered 2021-02-04) in NGC 4533 (Attempt)

SN 2021cjd - Type IIP Supernova (discovered 2021-02-07) in NGC 4774

SN 2021cwc - Type Ia Supernova (discovered 2021-02-13) in UGC 3502

SN 2021dnn - Type Ia Supernova (discovered 2021-02-22) in NGC 304

SN 2021dwg - Type Ic Supernova (discovered 2021-02-27) in IC 992

SN 2021foa - Type IIn Supernova (discovered 2021-03-15) in IC 863

SN 2021fxy - Type Ia Supernova (discovered 2021-03-17) in NGC 5018

SN 2021gmh - Type Ia Supernova (discovered 2021-03-19) in SDSS J223433.36+340019.1

SN 2021gno - Type II Supernova (discovered 2021-03-20) in NGC 4165

SN 2021gmj - Type II Supernova (discovered 2021-03-20) in NGC 3310 (Herschel IV-60)

SN 2021hcz - Type Ia Supernova (discovered 2021-03-24) in NGC 1400

SN 2021hiz - Type Ia Supernova (discovered 2021-03-30) in IC 3322A

AT2021kni - Candidate Supernova (discovered 2021-04-26) in NGC 7767

SN 2021tyf - Type II Supernova (discovered 2021-07-24) in UGC 9479 (Attempt)

SN 2021koq - Type Ia Supernova (discovered 2021/04/28) in UGC 11177

SN 2021ucg - Type II Supernova (discovered 2021-07-25) in UGC 12188

SN 2021ukt - Type Ia Supernova (discovered 2021-07-31) in UGC 505

SN 2021umh - Type Ia Supernova (discovered 2021-08-01) in LEDA 2204848

SN 2021usd - Type Ia Supernova (discovered 2021-08-02) in CGCG 200-019 (Attempt)

SN 2021vau - Type Ia Supernova (discovered 2021-08-04) in Spiral Galaxy UGC 3240

SN 2021vtl - Type Ia Supernova (discovered 2021-08-11) in NGC 940

SN 2021wcu - Type Ia Supernova (discovered 2021-08-13) in GALEXASC J072024.60+325058.8

SN 2021wad - Type Ia Supernova (discovered 2021-08-15) in NGC 4896

SN 2021win - Type Ia Supernova (discovered 2021-08-18) in WISEA J050619.12+223047.4

SN 2021wqi - Type Ia Supernova (discovered 2021-08-20) in NGC 5513

SN 2021wkv - Type Ia Supernova (discovered 2021-08-20) in NGC 6184

SN 2021wuf - Type Ia Supernova (discovered 2021-08-23) in Spiral Galaxy NGC 6500

SN 2021wvy - Type II Supernova (discovered 2021-08-23) in UGC 4002

SN 2021wvw - Type II Supernova (discovered 2021-08-24) in Irregular Galaxy UGC 2605

SN 2021wyw - Type Ia Supernova (discovered 2021-08-25) in NGC 7501

SN 2021xgx - Type Ia Supernova (discovered 2021-08-29) in Spiral Galaxy UGC 10607

SN 2021yal - Type Ia-91T Supernova (discovered 2021-09-05) in PGC 1155307 (Attempt)

SN 2021yok - Type II Supernova (discovered 2021-09-10) in UGC 3873

SN 2021zby - Type II Supernova (discovered 2021-09-17) in NGC 1166

SN 2021zju - Type Ib Supernova (discovered 2021-09-24) in NGC 9

SN 2021aalq - Type II Supernova (discovered 2021-10-03) in WISEA J095040.62+475756.9

SN 2021aazm - Type II Supernova (discovered 2021-10-09) in UGC 235

SN 2021abcw - Type Ibn Supernova (discovered 2021-10-11) in UGC 5751

SN 2021abjr - Type Ia Supernova (discovered 2021-10-13) in WISEA J102139.24+062408.7

SN 2021abkm - Type II Supernova (discovered 2021-10-14) in NGC 6627

SN 2021abko - Type Ia Supernova (discovered 2021-10-14) in IC 190

SN 2021abzd - Type Ia 91bg-like (discovered 2021-10-22) in NGC 233 (Attempt)

SN 2021abze - Type II Supernova (discovered 2021-10-22) in NGC 234

SN 2021aceu - Type Ia Supernova (discovered 2021-10-22) in UGC 811

SN 2021aclv (?) - Type Ia Supernova (discovered 2021-10-30) in NGC 327

SN 2021adpe - Type Ia Supernova (discovered 2021-11-04) in UGC 8975

SN 2021aefs - Type II Supernova (discovered 2021-11-09) in NGC 3836

SN 2021afkk - Type II Supernova (discovered 2021-11-25) in UGC 1971

SN 2021afsj - Type Ia Supernova (discovered 2021-11-29) in UGC 4671

SN 2021agco - Type II Supernova (discovered 2021-12-05) in UGC 3855

SN 2021agdd - Type Ia Supernova (discovered 2021-12-07) in NGC 7446

SN 2021aggu - Type Ia Supernova (discovered 2021-12-12) in NGC 2761

SN 2021agpf - Type Ia Supernova (discovered 2021-12-26) in NGC 5732

SN 2021agpj - Type Ia Supernova (discovered 2021-12-27) in 2MFGC 03677 (PGC 15364)

SN 2021ahot - Type Ia Supernova (discovered 2021-12-30) in LEDA 2156782

David's Astronomy Pages (Deep Sky)
Supernovae - 2021