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CCD Images - Session 943 (2021-12-17)
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132P/Helin-Roman-Alu - Comet C/2017 K2 (PANSTARRS) - Comet Nova Per 2020 - Nova (V1112 Per, AT2020abap) AT2021bpy - Transient (Type Unknown) AT2021aduu - Type CV Transient IC 992 - Spiral Galaxy with Type Ic Supernova 2021dwg UGC 1971 - Galaxy with Type II Supernova 2021afkk UGC 2528 - Spiral Galaxy with Type IIb Supernova 2020adnx Variable Stars (photometric monitoring) - AM CVn, AM Her Nearby Stars (astrometric monitoring) - HH And, CN Leo, Teegardens Star
- Evening session 5.6 hours - - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature: -3°C (min) - CCD Temperature: -25°C - Notes from 2021-12-17 >> [ Local Files >> ]
| 132P/Helin-Roman-Alu (passing through Cetus) Sun Distance 1.73 AU (receeding) Earth Distance 1.11 AU (165.4 million km) |
132P/Helin-Roman-Alu - 2021-12-17, Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra 60.08 arcsec/hr, Dec 25.65 arcsec/hr) |
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| Annotated CCD Image (50% size, square root scale) 3 x 60s exposure (average combine), 3x3 binning, C Filter 2021-12-17 20:42 UT (#943076-78) 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) 7 x 60s exposure (average combine), 3x3 binning, C Filter 2021-12-17 20:44 UT (#943076-82) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
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| Images of 132P/Helin-Roman-Alu on Comets 2021 Page >> |
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| C/2017 K2 (PANSTARRS) (passing through Hercules) Sun Distance 4.52 AU (approaching) Earth Distance 5.25 AU (786.0 million km) |
C/2017 K2 (PANSTARRS) - 2021-12-18, Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra 29.84 arcsec/hr, Dec -14.29 arcsec/hr) |
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| Annotated CCD Image (50% size, square root scale) 3 x 45s exposure (average combine), 3x3 binning, C Filter 2021-12-18 06:23 UT (#943115-17) 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) 9 x 45s exposure (average combine), 3x3 binning, C Filter 2021-12-18 06:23 UT (#943112-20) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
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| Images of C2017 K2 (PANSTARRS) 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 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 - 2021-12-17 (T+387.0d) Image below (2021-12-17.835) was taken 387.0 days after discovery of nova Nova is shown by white cross hairs. Measured magnitude +15.9 (fading) |
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| Annotated CCD Image (100% size, linear scale, cropped) 5 x 90s exposure (average combine), 3x3 binning, C Filter 2021-12-17 20:06 UT (#943060-64) 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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| AT2021bpy (Andromeda) AT2021bpy (Type: unk) discovered 2021/02/03.162 UT by ZTF Alias: ZTF19aaywash ( Rochester Supernova site | Discovery Image ) | ZTF19aaywash | (see https://lasair.roe.ac.uk/lasair/static/ztf/stamps/jpg/1494/candid1494161754615015005.jpg ) |
| Bright star adjacent to reported transient position is SAO 38097 (mag +8.57) |
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| Annotated CCD Image (50% size, square root scale) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2021-12-17 18:45 UT (#943003-07) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| AT2021bpy - 2021-12-17 (T+317.6d) Image below (2021-12-17.774) was taken 317.6 days after discovery of 2021bpy Previously reported transient position (now faded) is shown approximately by white cross hairs. Measured Magnitude of offset star is +15.3 |
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| Annotated CCD Image (125% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2021-12-17 18:45 UT (#943003-07) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
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| AT2021aduu (Cygnus) AT2021aduu (Type: CV) discovered 2021-11-05.930 UT by Gaia Alias: Gaia21fba [ Gaia21fba ] Gaia alert triggered by 0.3 mag rise in brightness (from +15.55 to +15.21) |
| AT2021aduu - 2021-12-17 (T+41.9d) Image below (2021-12-17.800) was taken 41.9 days after discovery of 2021aduu AT2021aduu is shown by white cross-hairs Measured magnitude +14.35 |
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| Annotated CCD Image (150% size, linear scale, cropped) 5 x 60s exposure (average combine), 3x3 binning, C Filter 2021-12-17 19:15 UT (#943019-23) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| AT2021aduu - Earlier Image, 2021-11-15 (T+9.9d) Image below (2021-11-15.818) was taken 9.9 days after discovery of 2021aduu AT2021aduu is shown by white cross-hairs Measured magnitude +14.4 |
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| Annotated CCD Image (150% size, linear scale, cropped) 4 x 60s exposure (average combine), 3x3 binning, C Filter 2021-11-15 19:42 UT (#933005-08) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
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| IC 992 with SN2021dwg (Virgo) SN 2021dwg (Type: Ic) discovered 2021/02/27.420 UT by ZTF Alias: ZTF21aannoix Magnitude +18.44 at discovery (Rochester Supernova site | TNS SN 2021dwg | ZTF21aannoix Notes) [ Supernovae 2021 ] |
| IC 992 with SN2021dwg - 2021-12-18 (T+293.9d) Image below (2021-12-18.283) was taken 293.9 days after discovery of 2021dwg Position of earlier SN (no longer visible) is shown by white circle. |
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| Annotated CCD Image (125% size, square root scale, cropped) 2 x 180s exposure (average combine), 3x3 binning, C Filter 2021-12-18 06:51 UT (#943134-35) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| Images of SN 2021dwg (IC 992) on Supernovae 2021 Page >> |
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| UGC 1971 with SN 2021afkk (Triangulum) SN 2021afkk (Type: II) discovered 2021-11-25.371 UT by ATLAS Alias: ATLAS21bmvp. Magnitude +18.2 at discovery. Distance 196 Mly (60 Mpc) (Rochester Supernova site | Enrico Prosperi image ) |
| UGC 1971 with SN 2021afkk - 2021-12-17 (T+22.4d) Image below (2021-12-17.815) was taken 22.4 days after discovery of 2021afkk Supernova reported position is shown by white cross-hairs Measured magnitude +15.0 (SN + Galaxy Nucleus) - unchanged since T+3.7d Poor quality image (bright sky background) |
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| Annotated CCD Image (125% size, square root scale, cropped) 3 x 180s exposure (average combine), 3x3 binning, C Filter 2021-12-17 19:43 UT (#943037-39) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| Images of SN 2021afkk (UGC 1971) on Supernovae 2021 Page >> |
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| 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 ) |
| UGC 2528 with SN 2020adnx - 2021-12-17 (T+358.0d) Image below (2021-12-17.842) was taken 358.0 days after discovery of 2020adnx Earlier position of SN (no longer visible) is shown by white cross hairs. Poor quality image due to bright uneven background sky |
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| CCD Image (125% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2021-12-17 20:22 UT (#943067-71) 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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| This Web Page: | CCD Images - Session 943 (2021-12-17) |
| Last Updated : | 2024-05-26 |
| Site Owner : | David Richards |
| Home Page : | David's Astronomy Web Site |
