David's Astronomy - Images 2021-01-05 (S00845)

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CCD Images - Session 845 (2021-01-05)

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Objects Session Notes

AT2020adcx, minor brightening - Variable Star (Type ?)

AT2020aetd, outburst of dwarf nova IR Gem - Variable Star (CV)

IC 600 - Spiral Galaxy (UGCA 209)

M85 - Elliptical Galaxy with SN 2020nlb

NGC 3243 - Spiral Galaxy

NGC 3643 - Spiral Galaxy (SN 2020hvf follow-up)

NGC 3697 - Spiral Galaxy with Type Ia Supernova 2020aavb

NGC 5331 - Spiral Galaxy with Type Ia Supernova 2020abir

UGC 1161 - Spiral Galaxy with Type Ia Supernova 2020acch

UGC 5495 - Spiral Galaxy (PGC 29698)

UGC 5760 - Spiral Galaxy with Type II Supernova 2020zoq

UGC 6930 - Spiral Galaxy with Type Ia Supernova 2020rcq

VV37 - Interacting Galaxies (PGC 7894 & PGC 7901)

Variable Stars (photometric monitoring)

- AM CVn, U And, RZ LMi, ER UMa

Nearby Stars (astrometric monitoring)

- None

- All-night session (5.3 hours)

- Main aims of the session were to acquire a selection of variable star, nearby star and comet targets and deep sky targets as cloud/showers allowed.

- 12" LX200 + ST-10XME for imaging

- TS 80mm APO + ZWO ASI178MC for guiding & imaging

- Ambient Temperature: -2°C (min)

- CCD Temperature: -20/-25°C

- Notes from 2021-01-05 >>

-

AT2020adcx, minor brightening - Variable Star (Type ?)

AT2020adcx (Cygnus)
Alias: Gaia20fup
AT2020adcx (Type: ? CV) discovered 2020-12-18 UT by Gaia
Magnitude at discovery +14.1 vs normal magnitude of +14.3
Bright galactic plane source rises by 0.3 mag;
candidate microlensing event or Be-type outburst (Gaia)
( Rochester Supernova site , Gaia20fup page (Gaia site) )

AT2020adcx, 2021-01-06 (T+19.1d)
Image below (2021-01-06.254 was taken 19.1 days after discovery/identification of AT2020adcx
Transient is shown by white cross hairs. Measured magnitude +14.1

Annotated CCD Image (100% size, linear scale, cropped)
5 x 60s exposure (average combine), 3x3 binning, C Filter
2021-01-06 06:06 UT (#845085-89)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT2020adcx - Earlier Image 2020-12-20 (T+2.7d)
Image below (2020-12-20.821 was taken 2.7 days after discovery/identification of AT2020adcx
Transient is shown by white cross hairs. Measured magnitude +14.1

Annotated CCD Image (100% size, linear scale, cropped)
4 x 60s exposure (average combine), 3x3 binning, C Filter
2020-12-20 20:17 UT (#840075-79)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT2020aetd, outburst of dwarf nova IR Gem - Variable Star (CV)

GCVS IR Gem / AT2020aetd (Gemini)
AT2020aetd (Type: CV) reported 2020-12-24.231 UT by MASTER
Alias: MASTER OT J064734.77+280621.5, AAVSO 0641+28
Magnitude at outburst discovery +13.2 vs normal magnitude of +15 to +17
( Rochester Supernova site | TNS )

AT2020aetd, 2021-01-05 (T+12.6d)
IR Gem / AT2020aetd indicated by white cross-hairs

Annotated CCD Image (50% size, linear scale)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-01-05 20:46 UT (#845003-07)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT2020aetd, Detail 2021-01-05 (T+12.6d)
Image below (2021-01-05.865) was taken 12.6 days after reported discovery of AT2020aetd
IR Gem / AT2020aetd indicated by white cross-hairs. Magnitude : +16.2
CV has evidently faded from its outburst magntitide (+13.2, 2020-12-24)

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

IC 600 - Spiral Galaxy (UGCA 209)

IC 600 (Sextans)
Alias: UGCA 209 (Catalog mag +12.5 or +14.0)
with adjacent galaxies :
PGC 112681 (catalog mag +18.6), PGC 1069553 (catalog mag +18.3),

CCD Image (100% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-01-06 04:20 UT (#845043-47)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

IC 600 / UGCA 209 - Detail

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

M85 - Elliptical Galaxy with SN 2020nlb

M85 with SN 2020nlb (Coma Berenices)
SN 2020nlb (Type Ia), discovered 2020/06/25.251 by ATLAS
(Rochester Supernova site | Confirmation Image | R. Spellman Image | mag ~ 18.5 at discovery )

M85 with SN 2020nlb - 2021-01-06 (T+195.0d)
Image (2021-01-06.206) taken 195.0 days after SN discovery.
Measured SN magnitude ? (SN too faint to be detected as an inventory object)

Annotated CCD Image (100% size, square root scale, cropped)
10 x 45s exposure (average combine), 3x3 binning, C Filter
2021-01-06 04:56 UT (#845055-64)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2020nlb (M85) on Supernovae 2020 Page >>

NGC 3243 - Spiral Galaxy

NGC 3243 (Sextans)
catalog mag + 12.8
with adjacent galaxies :
PGC 1085615 (catalog mag +17.1), PGC 1088227 (catalog mag +17.4),
PGC 103567 (catalog mag +18.2), PGC 1086334 (catalog mag +19.1)

CCD Image (100% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-01-06 03:32 UT (#845029-33)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 3243 - Detail

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

NGC 3243 - Earlier image (2020-11-04)
AT2019ahd discovered 2019/01/29.519 by ATLAS
Poor quality image, target to be rescheduled.

CCD Image (100% size, square root scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2020-11-04 04:18 UT (#826227-29)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 3643 - Spiral Galaxy (SN 2020hvf follow-up)

NGC 3643 (Leo)
Earlier images of NGC 3643 (May 2020) have shown SN 2020hvf (Type 1a)
discovered 2020/04/21.380 by ATLAS
(Rochester Supernova site | Marc Deldman image | Robin Leadbetter image + spectra )

NGC 3643 with SN 2020hvf - 2021-01-06 (T+259.8d)
Image below (2021-01-06.165) was taken 259.8 days after discovery of SN 2020hvf
Good quality image - the SN object (shown by white cross hairs) is just visible, albeit much faded
Estimated magnitude ~ 18.5 (i.e. much faded)

Annotated CCD Image (100% size, square root scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2021-01-06 03:57 UT (#845038-40)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2020hvf (NGC 3643) on Supernovae 2020 Page >>

NGC 3697 - Spiral Galaxy with Type Ia Supernova 2020aavb

NGC 3697 w/ SN 2020aavb (Leo)
SN 2020aavb (Type Ia, z=0.020884), discovered 2020/11/23.116 by F.Briganti and P.Campaner (ISSP)
( Rochester Supernova site | Discovery Image | Paolo Campaner image )

NGC 3697 w/ SN 2020aavb - 2021-01-06 (T+44.1d)
Image below (2021-01-06.235) was taken 44.1 days after discovery of SN 2020aavb
SN is shown by white cross hairs. Magnitude +16.7 (vs +17.0 at discovery)

Annotated CCD Image (100% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-01-06 05:38 UT (#845074-78)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2020aavb (NGC 3697) on Supernovae 2020 Page >>

NGC 5331 - Spiral Galaxy with Type Ia Supernova 2020abir

NGC 5331 (Virgo)
SN 2020abir (Type Ia, zhost=0.033056) discovered 2020-12-01.547 UT by ZTF
Alias: ZTF20actocyw
Mag +17.3 at discovery
(Rochester Supernova site | TNS )

NGC 5331 - 2021-01-06,T+35.7d)
Image below (2021-01-06.272) was taken 35.7 days after discovery of 2020abir
SN is too close to galaxy center to be separately resolved.
Estimated Magnitude +14.8 (SN + Galaxy Nucleus)
Image quality poor (bright sky). Target to be rescheduled for later date

CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-01-06 06:40 UT (#845098-102)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2020abir (NGC 5331) on Supernovae 2020 Page >>

UGC 1161 - Spiral Galaxy with Type Ia Supernova 2020acch

UGC 1161 with SN 2020acch (Andromeda)
SN 2020acch (Type: Ia, zhost=0.017072) discovered 2020/12/10.204 UT by ZTF
Alias: ZTF20acvziuf
( Rochester Supernova site )

UGC 1161 with SN 2020acch - 2021-01-05 (T+26.7d)
Image below (2021-01-05.880) was taken 26.7 days after discovery of SN 2020acch
SN is shown by white cross hairs. Est Magnitude ?

Annotated CCD Image (150% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-01-05 21:07 UT (#845010-13)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2020acch (UGC 1161) on Supernovae 2020 Page >>

UGC 5495 - Spiral Galaxy (PGC 29698)

UGC 5495 (Leo)
Flat Galaxy Atlas
Alias: PGC 29698
with PGC 1508455 & PGC 139263 in same field of field

Annotated CCD Image (50% size, square root scale)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-01-06 03:12 UT (#845022-26)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 5495 - Detail

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

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

UGC 5760 - Spiral Galaxy with Type II Supernova 2020zoq

UGC 5760 w/SN 2020zoq (Leo)
SN 2020zoq (Type II, z=0.0, zhost=0.010040) discovered 2020/11/14.561 by ASAS-SN
(Rochester Supernova site | Discovery Image | )

UGC 5760 w/SN 2020zoq - 2021-01-06 (T+52.6d)
Image below (2021-01-06.194) was taken 52.6 days after discovery of SN 2020zoq
SN is shown by white cross hairs. Measured magnitude +15.9

CCD Image (125% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-01-06 04:39 UT (#845049-53)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2020zoq (UGC 5760) on Supernovae 2020 Page >>

UGC 6930 - Spiral Galaxy with Type Ia Supernova 2020rcq

UGC 6930 with SN 2020rcq (Ursa Major)
SN 2020rcq (Type 1a, z=0.002597) discovered 2020/08/09.168 by Zwicky Transient Facility (ZTF)
(Rochester Supernova site | Giancarlo Cortini image | )

UGC 6930 with SN 2020rcq - Detail, 2021-01-06 (T+150.1d)
Image below (2021-01-06.265) was taken 150.1 days after discovery of SN 2020rcq
SN is shown by white cross hairs. Measured SN magnitude +15.9

Annotated CCD Image (100% size, square root scale, cropped)
5 x 120s exposure (average combine), 3x3 binning, C Filter
2021-01-06 06:21 UT (#845091-95)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2020rcq (UGC 6930) on Supernovae 2020 Page >>

VV37 - Interacting Galaxies (PGC 7894 & PGC 7901)

VV 37 (Andromeda)
Vorontsov-Velyaminov Catalogue
Alias: PGC 7894 & PGC 7901
[ Vorontsov-Velyaminov Galaxies ]

Annotated CCD Image (50% size, square root scale)
180s exposure (single frame), 3x3 binning, C Filter
2021-01-05 21:23 UT (#845017)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

VV 37 - Detail
PGC 7894 (catalog mag +14.7),
PGC 7901 (catalog mag +15.7) &
PGC 7895 (catalog mag +17.1)

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

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