David's Astronomy Pages CCD Images - Session 846 (2021-01-06)

Images (S845)

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Images (S847)

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Session Notes

UGC 12914  &  UGC 12915 - Interacting Spiral Galaxies (VV254, Taffy Galaxies, PGC 120 & PGC 129) AT2021bl - Extragalactic Nova in M33 SN 2020aagy - Type II Supernova in WISEA J005708.87 +544449.6 UGC 1161 - Spiral Galaxy with Type Ia Supernova 2020acch UGC 2528 - Spiral Galaxy with Type IIb Supernova 2020adnx AT2021W,  CV Outburst - Variable Star (CV) VV 107 - Interacting Galaxies (PGC 9449) 277P/LINEAR - Comet Nova Per 2020 - Nova (V1112 Per, AT2020abap) NGC 3277 - Spiral Galaxy (Herschel II-359)     Variable Stars (photometric monitoring) - RX And, SS Cyg, DY Per     Nearby Stars (astrometric monitoring) - HH And

- Evening session (4.7 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. - Session terminated early when skies clouded over and because of forecast for rain/sleet later in the night - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature: -4°C (min) - CCD Temperature:  -25°C - Notes from 2021-01-06 >>      -

UGC 12914  &  UGC 12915 - Interacting Spiral Galaxies (VV 254, Taffy Galaxies, PGC 120 & PGC 129)

UGC 12914 & UGC 12915 / VV 254 (Pegasus) Vorontsov-Velyaminov Catalogue Alias: Taffy Galaxies, PGC 120 & PGC 129 [ 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

UGC 12914 & UGC 12915 / VV254  -  Detail

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

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

UGC 12914 & UGC 12915 - Earlier Image (2020-10-13) Guiding issue due to cloud / lost star. Target rescheduled.

CCD Image (100% size, cropped) 180s exposure (single frame), 3x3 binning, C Filter 2020-10-13 20:10 UT (#819050) 12" LX200R (at f/10.4) + ST-10XME

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AT2021bl - Extragalactic Nova in M33

AT2021bl in M33 (Triangulum) AT2021bl (Type: unk) discovered 2021/01/03.688 UT by XOSS Alias: XM48MZ

AT2021bl in M33 - 2021-01-03 (T+3.1d) Image below (2021-01-06.770) was taken 3.1 days after discovery of AT2021bl EGN is shown by white cross hairs.  Magnitude: faded   (vs +17.9 at discovery)

Annotated CCD Image (100% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2021-01-06 18:29 UT (#846021-25) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT2021bl in M33 - Earlier Image, 2021-01-03 (T+0.3d) Image below (2021-01-03.972) was taken 0.28 days after discovery of AT2021bl EGN is shown by white cross hairs.  Magnitude ?   (vs +17.9 at discovery)

Annotated CCD Image  (100% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2021-01-03 23:20 UT (#844079-83) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT2021bl on M33 Page >>

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SN 2020aagy - Type II Supernova in WISEA J005708.87 +544449.6

SN 2020aagy (Cassiopeia) SN 2020aagy (Type: II) discovered 2020/11/17.364 UT by ATLAS Alias: ATLAS20bfpj  ( Rochester Supernova site )

SN 2020aagy - 2021-01-06 (T+50.4d) Image below (2021-01-06.804) was taken 50.4 days after discovery of SN 2020aagy SN is shown by white cross hairs.  Magnitude ?

Annotated CCD Image  (200% size, square root scale, cropped) 4 x 180s exposure (average combine), 3x3 binning, C Filter 2021-01-06 19:18 UT (#846051-54) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2020aagy on Supernovae 2020 Page >>

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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 - 2021-01-06 (T+28.3d) Image below (2021-01-06.826) was taken 28.3 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 2021-01-06 19:49 UT (#846065-68) 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 >>

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UGC 2528 - Spiral Galaxy with Type IIb Supernova 2020adnx

UGC 2528 with SN 2020adnx (Perseus) Spiral Galaxy with Type IIb Supernova [ Supernovae ] SN 2020adnx (Type IIb,  zhost=0.021001)  discovered 2020-12-24.859 UT by MASTER Alias: MASTER OT J030555.49+413631.1, ATLAS20bjhy, Gaia20fxw  ( Rochester Supernova site | Gianpiero Locatelli image )

Annotated CCD Image  (50% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2021-01-06 20:10 UT (#846070-74) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 2528 with SN 2020adnx  - 2021-01-06 (T+13.0d) Image below (2021-01-06.840) was taken13.0 days after discovery of SN 2020adnx SN is shown by white cross hairs.  Estimated Magnitude  +17.5 to +18.0

CCD Image  (125% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2021-01-06 20:10 UT (#846070-74) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2020adnx (UGC 2528) on Supernovae 2020 Page >>

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AT2021W,  CV Outburst - Variable Star (CV)

AT2021W (Perseus) AT2021W (Type: CV) discovered 2021/01/01.089 UT by Gaia Alias: Gaia21abe Magnitude at discovery +16.15 vs normal magnitude of +20.8  ( Rochester Supernova site )

AT2021W CV lies at centre of white circle.

Annotated CCD Image (50% size, linear scale) 4 x 120s exposure (average combine), 3x3 binning, C Filter 2021-01-06 20:28 UT (#846076-80) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT2021W - Detail, 2021-01-06 (T+5.7d) Image below (2021-01-06.853) was taken 5.8 days after discovery of AT2021W CV is shown by white cross hairs.  Measured magnitude ?

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

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VV 107 - Interacting Galaxies (PGC 9449)

VV 107 (Andromeda) Vorontsov-Velyaminov Catalogue Alias: PGC 9449 (catalog mag +15.6). Very Small [ Vorontsov-Velyaminov Galaxies ] with other galaxies in same field of view : PGC 9434 (catalog mag +15.6),  PGC 2117292 (catalog mag +16.9) PGC 2118996 (catalog mag +17.8), PGC 2117496 (catalog mag +17.8), PGC 2117963 (catalog mag +17.8)

Annotated CCD Image (50% size, square root scale) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2021-01-06 20:49 UT (#846082-86) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

VV 107 -  Detail

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

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

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277P/LINEAR - Comet

277P/LINEAR (passing through Aries) Sun Distance 1.91 AU (receeding) Earth Distance 1.22 AU (182.6 million km) Comet shown by white cross-hairs		277P/LINEAR - 2021-01-06, Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra 49.59 arcsec/hr, Dec -27.29 arcsec/hr) Comet shown by white cross-hairs
Annotated CCD Image (50% size, square root scale) 3 x 60s exposure (average combine), 3x3 binning, C Filter 2021-01-06 21:04 UT (#846088-90) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		Annotated CCD Image (100% size, square root scale, cropped) 8 x 60s exposure (average combine), 3x3 binning, C Filter 2021-01-06 21:07 UT (#846088-96) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
Images of 277P/LINEAR on Comets 2021 Page >>

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Nova Per 2020 - Nova (V1112 Per, AT2020abap)

Nova Per 2020 (Perseus) Nova in Perseus discovered 2020/11/25.807 [ Novae ] discovered independently by Seiji Ueda and Stanislav Korotkiy et al AT2020abap (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 - 2021-01-06 (T+42.1d) Image below (2021-01-06.892) was taken 42.1 days after discovery of Nova Nova is shown by white cross hairs.  Measured magnitude +11.4

CCD Image (100% size, linear scale, cropped) 5 x 90s exposure (average combine), 3x3 binning, C Filter 2021-01-06 21:24 UT (#846098-102) 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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NGC 3277 - Spiral Galaxy (Herschel II-359)

NGC 3277 (Leo Minor) Deep Sky Challenge, Associated Object, May 2020 Member of LGG 197, Alias: Herschel II-359 [ Deep Sky Challanges (Ast.Now) ,  Herschel 400 Objects ] Galaxy looks more like an elliptical galaxy rather than a spiral one ! Image captured as single frame only before sky clouded over. Target to be rescheduled for a later session [ See later images S860, 2021-02-18 ]

Annotated CCD Image (50% size, square root scale) 180s exposure (single frame), 3x3 binning, C Filter 2021-01-06 22:19 UT (#846118) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 3277  -  Detail

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

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