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CCD Images - Session 938 (2021-11-28)
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Objects Session Notes
- Evening session 6.4 hours - Session interrupted by passing clouds/snow showers and
finally ended by cloud/high cloud at 01:34- 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature: -0.5°C (min) - CCD Temperature: -25°C - Notes from 2021-11-28 >> [ Local Files >> ]
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NGC 6627 with SN2021abkm (Hercules) SN 2021abkm (Type: II) discovered 2021-10-14.208 UT by ATLAS Alias: ATLAS21bkcp, Gaia21ewt (Rochester Supernova site | Enrico Prosperi image | Gaia21ewt ) |
| NGC 6627 with SN2021abkm - 2021-11-28 (T+45.6d) Image below (2021-11-28.803) was taken 45.6 days after discovery of 2021abkm Position of earlier SN (not visible) is shown by white cross-hairs Due to low altitude & poor guiding the signal/noise ratio in the image isn't high enough to show the faint SN which was only just visible at time of last observation (T+40.6d) |
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| Annotated CCD Image (150% size, square root scale, cropped) 2 x 180s exposure (average combine), 3x3 binning, C Filter 2021-11-28 19:22 UT (#938005-06) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| Images of SN 2021abkm (NGC 6627) on Supernovae 2021 Page >> |
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| BL Lac (Lacerta) Accidently targetted as AT2021bag AT2021bag (Type BL) was an outburst of BL Lac discovered 2021/01/21.654 UT by Gaia Alias: Gaia21akj, BL Lac | Gaia21akj | [ |
| AT2021bag - 2021-11-28 (T+311.2d) Image below (2021-11-28.818) was taken 311.2 days after reported discovery 2021bag BL Lac is shown by white cross hairs. Measured magnitude +13.2 (vs catalog mag of +14.5) Object is noticeably dimmer than it was in image taken 2021-01-25 (T+4.1d) |
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| Annotated CCD Image (100% size, linear scale, cropped) 180s exposure (single frame), 3x3 binning, C Filter 2021-11-28 19:41 UT (#938013) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| AT2021bag - Earlier Image, 2021-01-25 (T+4.1d) Image below (2021-01-25.776) was taken 4.1 days after reported discovery 2021bag BL Lac is shown by white cross hairs. Measured magnitude +12.1 (vs catalog mag of +14.5) |
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| Annotated CCD Image (100% size, linear scale, cropped) 3 x 180s exposure (average combine), 3x3 binning, C Filter 2021-01-25 18:43 UT (#855005-07) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| BL Lac on Active Galactic Nuclei Page >> |
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| M31 (Andromeda) Accidently targetted as M31 with AT2021boa a former Type: FeII transient (now faded) discovered 2021/02/03.580 UT by XOSS |
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| CCD Image (70% size, square root scale) 180s exposure (single frame), 3x3 binning, C Filter 2021-11-28 20:19 UT (#938018) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
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| Whiting 1 (Cetus) Discovered 2002 by Whiting, Hau & Irwin Position of Whiting 1 shown by white circle [ Globular Star Clusters ] |
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| Annotated CCD Image (50% size, square root scale) 5 x 60s exposure (average combine), 3x3 binning, C Filter 2021-11-28 20:46 UT (#938026-32) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| Whiting 1 - Detail |
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| CCD Image (100% size, square root scale, cropped) Image details as above |
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| Negative CCD Image (100% size, square root scale, cropped) Image details as above |
| Whiting 1 - Earlier Image (Aug 2019) Some of the stars in the globular cluster are just visible Image affected by dust mottes / bright sky background |
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| CCD Image (100% size, log scale, cropped) 7 x 60s exposure (average combine), 3x3 binning, C Filter 2019-08-26 03:30 UT (#684134-40) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
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| C/2019 L3 (ATLAS) (passing through Lynx) Sun Distance 3.57 AU (approaching) Earth Distance 2.82 AU (422.2 million km) |
C/2019 L3 (ATLAS) - 2021-11-28, Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra -20.68 arcsec/hr, Dec -17.05 arcsec/hr) |
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| Annotated CCD Image (50% size, square root scale) 3 x 45s exposure (average combine), 3x3 binning, C Filter 2021-11-28 21:01 UT (#938035-37) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
CCD Image (100% size, log scale, cropped) 3 x 45s exposure (average combine), 3x3 binning, C Filter 2021-11-28 21:01 UT (#938035-37) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
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| Images of C/2019 L3 (ATLAS) on Comets 2021 Page >> |
| C/2019 L3 (ATLAS) Inverse Spectrum |
| C/2019 L3 (ATLAS) - 2021-11-28 |
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| False Colour CCD Image (70% size, log scale) 3 x 45s exposure (average combine), 3x3 binning, C Filter 2021-11-28 21:01 UT (#938035-37) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
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V0645 Cyg (Cygnus) AT2021zkf (Type: YSO) discovered 2021-09-13.232 UT by Gaia Alias: Gaia21ego, GCVS V0645 Cyg | Gaia21ego ) |
| V0645 Cyg / AT2021zkf - 2021-11-28 (T+76.7d) Image below (2021-11-28.912) was taken 76.7 days after discovery of 2021zkf Star is shown by white cross-hairs Measured Magnitude +11.55 |
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| Annotated CCD Image (50% size, linear scale) 2 x 180s exposure (average combine), 3x3 binning, C Filter 2021-11-28 22:06 UT (#938050-51) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| V0645 Cyg / AT2021zkf - Detail |
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| CCD Image (100% size, linear scale, cropped) Image details as above |
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AT2021fmi (Orion) AT2021fmi (Type: CV) discovered 2021/03/11.011 UT by Gaia Alias: Gaia21bhl (mag +16.6 at outburst in Mar 2021 vs normal mag +19.3 to + 20.5) | Gaia21bhl ) |
| AT2021fmi (CV) - 2021-11-28 (T+262.9d) Image below (2021-11-28.926) was taken 262.9 days after discovery of 2021fmi Position of earlier reported CV outburst (not visible) is shown by white cross-hairs No object is visible at reported position and the star is presumed to have returned to it normal brightness (mag +20) |
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| Annotated CCD Image (50% size, linear scale) 5 x 60s exposure (average combine), 3x3 binning, C Filter 2021-11-28 22:16 UT (#938053-57) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| AT2021fmi (CV) - Detail |
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| CCD Image (125% size, linear scale, cropped) Image details as above |
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| AT2021aetv (Pisces) AT2021aetv (Type: CV) discovered 2021-11-12.220 UT by Robert Nelson Alias: RHN-001, GSC 0015-0388 |
| AT2021aetv - 2021-11-28 (T+16.7d) Image below (2021-11-28.935) was taken 16.7 days after discovery of AT2021aetv AT2021aetv is shown by white cross-hairs Measured magnitude +11.5 vs GCS 15:388 catalog mag +11.5 and UCA/USNO2 catalog mag +11.4 Again no indication of any significant brightning. The transient is therefore again unconfirmed. Star would seem to have returned to its normal state. |
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| Annotated CCD Image (50% size, linear scale) 2 x 60s exposure (average combine), 3x3 binning, C Filter 2021-11-28 22:29 UT (#938060-61) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
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| NGC 1166 with SN2021zby (Aries) SN 2021zby (Type: II) discovered 2021-09-17.453 UT by ATLAS Alias: ATLAS21bixf (Rochester Supernova site | Enrico Prosperi image ) |
| NGC 1166 with SN2021zby - 2021-11-28 (T+72.5d) Image below (2021-11-28.942) was taken 72.5 days after discovery of 2021zby Supernova (very faint) is shown by white cross-hairs Poor quality image (poor guiding / single frame) |
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| Annotated CCD Image (150% size, square root scale, cropped) 180s exposure (single frame), 3x3 binning, C Filter 2021-11-28 22:39 UT (#938066) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| Images of SN 2021zby (NGC 1166) on Supernovae 2021 Page >> |
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| NGC 2158 / H VI-17 (Gemini) |
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| CCD Image Mosaic (50% size) 45s exposure (single sub), 3x3 binning, C Filter 2021-11-29 00:46 UT (#938078-88) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 [ Larger image, 100% size] |
| NGC 2158 / H VI-17 - Earlier Image (Nov 2020) |
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| Part of CCD Image Mosaic (50% size) 45s exposure (single sub), 3x3 binning, C Filter 2020-11-13 21:09 UT (#829090-120) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 [ Full Size image (including M35), 60% size ] |
| NGC 2158 / H VI-17 - Earlier Image (Oct 2020) |
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| Part of CCD Image Mosaic (50% size) 45s exposure (single sub), 3x3 binning, C Filter 2020-10-25 03:58 UT (#821074-99) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 [ Larger image, 100% size ] |
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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 (T+3.7d) |
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| Annotated CCD Image (550% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2021-11-29 01:27 UT (#938102-06) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| UGC 1971 with SN 2021afkk - 2021-11-29 (T+3.7d) Image below (2021-11-29.054) was taken 3.7 days after discovery of 2021afkk Supernova (very faint) is shown by white cross-hairs Measured magnitude +15.0 (SN + Galaxy Nucleus) Poor quality image (poor signal/noise) |
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| Annotated CCD Image (125% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2021-11-29 01:27 UT (#938102-06) 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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| This Web Page: | CCD Images - Session 938 (2021-11-28) |
| Last Updated : | 2021-12-27 |
| Site Owner : | David Richards |
| Home Page : | David's Astronomy Web Site |
