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CCD Images - Session 844 (2021-01-03)
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277P/LINEAR - Comet AT2020acxk - Variable Star (CV) UGC 1161 - Spiral Galaxy with Type Ia Supernova 2020acch 29P/Schwassmann-Wachmann - Comet 398P/Boattini - Comet AT2021bl - Extragalactic Nova in M33 Nova Per 2020 - Nova (V1112 Per, AT2020abap) SN 2020aagy - Type II Supernova in WISEA J005708.87 +544449.6 Variable Stars (photometric monitoring) - RX And, U And, CN Ori
- RR Tau attempt failed due to cloudNearby Stars (astrometric monitoring) - None
- Evening session (5.3 hours) - Main aims of the session were to resynchronise Scope Position/T Point Model by performing a short mapping job and 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°C - Notes from 2021-01-03 >> -
| 277P/LINEAR (passing through Aries) Sun Distance 1.90 AU Earth Distance 1.20 AU (179.0 million km) Comet shown by white cross-hairs Several faint galaxies in same field of view |
277P/LINEAR - 2021-01-03, Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra 46.70 arcsec/hr, Dec -29.05 arcsec/hr) Only one confirmed fragment, other candidates are NED galaxies (cf. earlier 2021-01-02 image where there seemed to be two) |
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| Annotated CCD Image (50% size, square root scale) 4 x 60s exposure (average combine), 3x3 binning, C Filter 2021-01-03 21:10 UT (#844017-20) 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) 4 x 60s exposure (average combine), 3x3 binning, C Filter 2021-01-03 21:10 UT (#844017-20) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
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| Images of 277P/LINEAR on Comets 2021 Page >> |
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| AT2020acxk (Pisces) AT2020acxk (Type: CV) discovered 2020/12/16.316 UT by Gaia Alias: Gaia20ftq, CRTS J010522.2+110253 Magnitude at discovery +15.1 vs normal magnitude of +20.8 ( Rochester Supernova site | Gaia20ftq ) |
| AT2020acxk, 2021-01-03 (T+18.6d) Image below (2021-01-03.908) was taken 18.6 days after discovery of AT2020acxk Magnitude : CV faded signficantly (> +18) |
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| Annotated CCD Image (50% size, linear scale) 5 x 60s exposure (average combine), 3x3 binning, C Filter 2021-01-03 21:48 UT (#844037-41) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| AT2020acxk - Detail, 2021-01-03 (T+18.6d) |
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| Annotated CCD Image (100% size, linear scale, cropped) Image details as above |
| AT2020acxk - Earlier Image, 2020-12-21 (T+5.7d) Image below (2020-12-21.979) was taken 5.7 days after discovery of AT2020acxk CV is shown by white cross hairs. Measured magnitude +15.6 |
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| Annotated CCD Image (100% size, linear scale, cropped) 5 x 60s exposure (average combine), 3x3 binning, C Filter 2020-12-21 23:30 UT (#841009-13) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| AT2020acxk - Earlier Image, 2020-12-20 (T+4.5d) Image below (2020-12-20.821) was taken 4.5 days after discovery of AT2020acxk CV is shown by white cross hairs. Measured magnitude +15.6 |
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| Annotated CCD Image (100% size, linear scale, cropped) 5 x 60s exposure (average combine), 3x3 binning, C Filter 2020-12-20 19:42 UT (#840061-65) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
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| 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 - 2021-01-03 (T+25.4d) Image below (2021-01-03.919) was taken 25.4 days after discovery of SN 2020acch SN is shown by white cross hairs. Est Magnitude ~ +16.2 |
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| Annotated CCD Image (150% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2021-01-03 22:03 UT (#844043-47) 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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| 29P/Schwassmann-Wachmann (passing through Aries) Sun Distance 5.85 AU (receeding) Earth Distance 5.35 AU (801.0 million km) |
29P/Schwassmann-Wachmann - 2021-01-03, Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra 0.73 arcsec/hr, Dec -4.38 arcsec/hr) |
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| Annotated CCD Image (50% size, square root scale) 6 x 30s exposure (average combine), 3x3 binning, C Filter 2021-01-03 22:16 UT (#844049-55) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
CCD Image (100% size, square root scale, cropped) Image details as left |
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| Images of 29P/Schwassmann-Wachmann on Comets 2020 Page >> |
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| 398P/Boattini (passing through Orion) Sun Distance 1.31 AU Earth Distance 0.39 AU (57.6 million km) |
398P/Boattini - 2021-01-03, Detail Alias: P/2020 P2 (Boattini) Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra 49.69 arcsec/hr, Dec 91.10 arcsec/hr) |
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| CCD Image (50% size, square root scale) 2 x 45s exposure (average combine), 3x3 binning, C Filter 2021-01-03 22:28 UT (#844060-61) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
CCD Image (100% size, square root scale, cropped) 8 x 45s exposure (average combine), 3x3 binning, C Filter 2021-01-03 22:31 UT (#844060-67) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
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| Images of 398P/Boattini on Comets 2020 Page >> |
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| AT2021bl in M33 (Triangulum) AT2021bl (Type: unk) discovered 2021/01/03.688 UT by XOSS Alias: XM48MZ EGN shown by white cross hairs |
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| Annotated CCD Image (50% 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 |
| AT2021bl in M33 - 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) |
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| 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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| Nova Per 2020 (Perseus) Nova in Perseus discovered 2020/11/25.807 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 - 2021-01-03 (T+39.2d) Image below (2021-01-03.986) was taken 39.2 days after discovery of Nova Nova is shown by white cross hairs. Measured magnitude +10.9 |
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| CCD Image (100% size, linear scale, cropped) 2 x 90s exposure (average combine), 3x3 binning, C Filter 2021-01-03 23:40 UT (#844091-92) 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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| SN 2020aagy (Cassiopeia) SN 2020aagy (Type: II) discovered 2020/11/17.364 UT by ATLAS Alias: ATLAS20bfpj ( Rochester Supernova site ) |
| SN 2020aagy - 2021-01-04 (T+47.7d) Image below (2021-01-04.087) was taken 47.7 days after discovery of SN 2020aagy SN is shown by white cross hairs. Magnitude ? |
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| Annotated CCD Image (200% size, square root scale, cropped) 180s exposure (single frame), 3x3 binning, C Filter 2021-01-04 02:05 UT (#844100) 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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| This Web Page: | CCD Images - Session 844 (2021-01-03) |
| Last Updated : | 2021-02-12 |
| Site Owner : | David Richards |
| Home Page : | David's Astronomy Web Site |
