David's Astronomy Pages CCD Images - Session 875 (2021-03-24)

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Session Notes

IC 357 - Spiral Galaxy with AT 2021fyd (unconfirmed) AT 2021ckv - Type YSO Transient  (GCVS PR Ori) UGC 3502 - Spiral Galaxy with Type Ia Supernova 2021cwc NGC 3310 - Spiral Galaxy (Herschel IV-60) with SN 2021gmj UGC 6930 - Spiral Galaxy with Type Ia Supernova 2020rcq Nova Per 2020 - Nova (V1112 Per, AT 2020abap)     Variable Stars (photometric monitoring) - None     Nearby Stars (astrometric monitoring) - LAMOST-HVS1

- All Night session (2.4 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 allowed - Session cut short by development of cloud at 22:45 which lasted until dawn. - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature: 4.5°C (min) - CCD Temperature:  -20°C - Notes from 2021-03-24 >>    [ Local Files >> ]   -

IC 357 - Spiral Galaxy with AT 2021fyd (unconfirmed)

IC 357 (Taurus) Alias PGC 14384 (catalog mag +15.0) Other galaxies is same field of view are:  PGC 14400 (catalog mag +16.2), PGC 14398 (catalog mag +16.8), PGC 213269 (catalog mag +18.3)

Annotated CCD Image  (50% size, square root scale) 2 x 180s exposure (average combine), 3x3 binning, C Filter 2021-03-24 20:58 UT (#875014-15) 12" LX200R (at f/10.4) + ST-10XME (Auto-guiding failed)

IC 357 with AT 2021fyd (Taurus) AT 2021fyd (Type: unk) discovered 2021/03/17.187 UT by ZTF Alias: ZTF21aapdpup Discovery Magnitude 18.01 (Rochester Supernova site | TNS 2021fyd )

IC 357 with AT 2021fyd - 2021-03-24 (T+7.7d) Image below (2021-03-24.864) was taken 7.7 days after reported discovery of 2021fy Unable to identify transient. It might lay at or very close to  the galaxy' center Transient is unconfirmed.

CCD Image (125% size, square root scale, cropped) 2 x 180s exposure (average combine), 3x3 binning, C Filter 2021-03-24 20:58 UT (#875014-15) 12" LX200R (at f/10.4) + ST-10XME (Auto-guiding failed)

Images of AT 2021fyd (IC 357) on Transients 2021 Page >>

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AT 2021ckv - Type YSO Transient  (GCVS PR Ori)

AT 2021ckv / PR Ori  (Orion) AT 2021ckv (Type: YSO) discovered 2021/02/08.759 UT by Gaia Alias: Gaia21arx, GCVS PR Ori

AT 2021ckv / PR Ori - 2021-02-24 (T+44.1d) Image below (2021-03-24.878) was taken 44.1 days after discovery of 2021ckv Position of reported YSO Type Transient is shown by white cross-hairs. Measured Magnitude +11.3 (vs normal range of +12.2 to +13.6)

Annotated CCD Image  (50% size, linear scale) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2021-03-24 21:15 UT (#875019-23) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

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UGC 3502 - Spiral Galaxy with Type Ia Supernova 2021cwc

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 - 2021-02-24 (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

Images of SN 2021cwc (UGC 3502) on Supernovae 2021 Page >>

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NGC 3310 - Spiral Galaxy  (Herschel IV-60) with Type II Supernova 2021gmj

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  ( Rochester Supernova site |  Gianluca Masi image) 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 - 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

Images of SN 2021gmj (NGC 3310) on Supernovae 2021 Page >>

NGC 3310 - Earlier Images (2013)

CCD Image (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

Negative CCD Image (Square Root Scale, Cropped) Image details as above

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UGC 6930 - Spiral Galaxy with Type Ia Supernova 2020rcq

UGC 6930 with SN 2020rcq (Ursa Major) Spiral Galaxy with Type Ia Supernova [ Supernovae ] 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 - 2021-03-24 (T+227.8d) Image below (2021-03-24.930) was taken 227.8 days after discovery of 2020rcq SN is shown by white cross hairs.  Measured SN magnitude ?

Annotated CCD Image (100% size, square root scale, cropped) 3 x 120s exposure (average combine), 3x3 binning, C Filter 2021-03-24 22:24 UT (#875050-52) 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 >>

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Nova Per 2020 - Nova (V1112 Per, AT 2020abap)

Nova Per 2020 (Perseus) Nova in Perseus discovered 2020/11/25.807 [ Novae ] Nova Per 2020 discovered independently by Seiji Ueda and Stanislav Korotkiy et al AT 2020abap (Type: CV) reported 2020/11/27.230 UT by PGIR Alias: N Per 2020 , PGIR20fbf, TCP J04291888+4354233, TCP J04291884+4354232, V1112 Per

Nova Per 2020 - 2021-02-03-24 (T+119.1d) Image below (2021-03-24.943) was taken 119.1 days after discovery of Nova Nova is shown by white cross hairs.   Measured magnitude +14.7

CCD Image (100% size, linear scale, cropped) 4 x 90s exposure (average combine), 3x3 binning, C Filter 2021-03-24 22:43 UT (#875057-61) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of Nova Per 2020 on Novae Page >>

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