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CCD Images - Session 862 (2021-02-24)
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Objects Session Notes
C/2020 T2 (Palomar) - Comet Nova Per 2020 - Nova (V1112 Per, AT 2020abap) AT 2021dbp - Type CV Transient AT 2021dtd - Type CV Transient MCG +6-30-84 - Galaxy (PGC 48870) with Type Ia Supernova 2021K NGC 4227 - Spiral Galaxy with Type Ia Supernova 2021biz NGC 4631 - Spiral Galaxy with Type LRN Transient AT 2021biy SN 2021xn - Type Ia Supernova in PGC 6041 UGC 3502 - Spiral Galaxy with Type Ia Supernova 2021cwc UGC 6930 - Spiral Galaxy with Type Ia Supernova 2020rcq Variable Stars (photometric monitoring) - AM CVn, R CrB, U Her, BL Lac
Nearby Stars (astrometric monitoring) - Barnards Star
- Early morning session (4.0 hours) - Main aims of the session were to acquire a selection of variable star, nearby star and comet targets and deep sky targets as conditons allowed. - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature: 4°C (min) - CCD Temperature: -20°C - Notes from 2021-02-24 >> [ Local Files >> ] -
| C/2020 T2 (Palomar) (passing through Canes Venatici) Sun Distance 2.60 AU (approaching) Earth Distance 1.88 AU (281.7 million km) Comet indicated by white cross-hairs |
C/2020 T2 (Palomar) - 2021-02-25, Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra 17.78 arcsec/hr, Dec 19.93 arcsec/hr) |
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| Annotated CCD Image (50% size, square root scale) 3 x 45s exposure (average combine), 3x3 binning, C Filter 2021-02-25 02:59 UT (#862034-36) 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) 15 x 45s exposure (average combine), 3x3 binning, C Filter 2021-02-25 03:05 UT (#862034-48) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
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| Images of C/2020 T2 (Palomar) on Comets 2021 Page >> |
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| 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 - 2021-02-25 (T+91.3d) Image below (2021-02-25.083) was taken 91.3 days after discovery of Nova Nova is shown by white cross hairs. Measured magnitude +15.2 |
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| CCD Image (100% size, linear scale, cropped) 3 x 90s exposure (average combine), 3x3 binning, C Filter 2021-02-25 02:04 UT (#862012-15) 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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| AT 2021dbp (Auriga) AT 2021dbp (Type: CV) discovered 2021/02/14.535 UT by Gaia Alias: Gaia21auv, GSC 2374:280 ( Rochester Supernova site | Gaia21auv ) Based on Gaia Alert at magnitude +10.04 |
| AT 2021dbp - 2021-02-25 (T+10.5d) Image below (2021-02-25.075) was taken 10.5 days after discovery of 2021dbp CV is shown by white cross hairs. Measured Magnitude +10.5 vs GSC magnitude +10.2 |
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| Annotated CCD Image (100% size, linear scale, cropped) 5 x 60s exposure (average combine), 3x3 binning, C Filter 2021-02-25 01:52 UT (#862004-08) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| Images of AT 2021dbp on Transients 2021 Page >> |
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| AT 2021dtd (Cepheus) AT 2021dtd (Type: CV) discovered 2021/02/20.084 UT by Gaia Alias: Gaia21bal, GSC 2374:280 ( Rochester Supernova site | Gaia21bal ) 0.25 mag brightening in blue star, Be-type event |
| AT 2021dtd - AT 2021dtd - 2021-02-25 (T+5.1d) Image below (2021-02-25.143) was taken 5.1 days after discovery of 2021dtd CV is shown by white cross hairs. Measured Magnitude +10.9 Bright star is same FOV is HIP 105091 (mag +6.4) |
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| Annotated CCD Image (100% size, linear scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2021-02-25 03:36 UT (#862057-61) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| Images of AT 2021dtd on Transients 2021 Page >> |
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| 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 Alias: ZTF21aaabvjk, Gaia21acj (Rochester Supernova site | ZTF observations | ) |
| 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 |
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| 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 |
| Images of SN 2021K (MCG +6-30-84) on Supernovae 2021 Page >> |
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| NGC 4227 with SN 2021biz (Canes Venatici) SN 2021biz (Type: Ia) discovered 2021/01/29.543 UT by ATLAS Alias: ATLAS21dfz (Rochester Supernova site | Gianluca Masi image | Jean-Claude Merlin image ) |
| 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) |
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| Annotated CCD Image (125% size, linear 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 |
| Images of SN 2021biz (NGC 4227) on Supernovae 2021 Page >> |
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| NGC 4631 with AT 2021biy (Canes Venatici) AT 2021biy (Type: LRN) discovered 2021/01/29.559 UT by ATLAS Alias: ATLAS21dfy (Discovery Note) (Rochester Supernova site | Odd Trondal image | Nick James image ) LRN = Luminous Red Nova [ LRN Transients ] |
| NGC 4631 with AT 2021biy - 2021-02-25 (T+26.6d) Image below (2021-02-25.109) was taken 26.6 days after discovery of 2021biy LRN shown by white cross hairs. Measured magnitude ? |
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| Annotated CCD Image (100% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2021-02-25 02:46 UT (#862027-31) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| Images of AT 2021biy (NGC 4631) on Transients 2021 Page >> |
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| 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 -2021-02-25 (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 |
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| 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 |
| Images of SN 2021xn (PGC 6041) on Supernovae 2021 Page >> |
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| 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 - 2021-02-25 (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. |
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| 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 |
| Images of SN 2021cwc (UGC 3502) on Supernovae 2021 Page >> |
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| 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 - 2021-02-25 (T+200.0d) Image below (2021-02-25.175) was taken 200.0 days after discovery of 2020rcq SN is shown by white cross hairs. Measured SN magnitude +16.8 (fading) |
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| Annotated CCD Image (100% size, square root scale, cropped) 5 x 120s exposure (average combine), 3x3 binning, C Filter 2021-02-25 04:18 UT (#862071-75) 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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| This Web Page: | CCD Images - Session 862 (2021-02-24) |
| Last Updated : | 2024-05-27 |
| Site Owner : | David Richards |
| Home Page : | David's Astronomy Web Site |
