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CCD Images - Session 936 (2021-11-23)
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NGC 1569 - Irregular Galaxy with Type HPM Transient AT 2021aczn EGN 2021aceg - Extragalactic Nova in Spiral Galaxy M31 NGC 6627 - Spiral Galaxy with Type II Supernova 2021abkm NGC 9 - Spiral Galaxy with Type Ib Supernova 2021zju UGC 3240 - Spiral Galaxy with Type Ia Supernova 2021vau Nova Cas 2021 - Nova (V1405 Cas) C/2019 L3 (ATLAS) - Comet 67P/Churyumov-Gerasimenko - Comet C/2021 A1 (Leonard) - Comet UGC 5751 - Spiral Galaxy with Type Ibn Supernova 2021abcw UGC 5760 with Type II Supernova 2020zoq (Faded) GCVS RR Lyr - Variable Star, RR Lyr Type (HIP 95497) Variable Stars (photometric monitoring) - RX And, U And, SY Cnc, RR Lyr, SU Tau, ER UMa Nearby Stars (astrometric monitoring) - HH And, DX Cnc, Groombridge 34, Scholz's Star
- All Night session (12.1 hours) - - 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 2021-11-23 >> [ Local Files >> ]
| NGC 1569 with AT 2021aczn (Camelopardalis) AT 2021aczn (Type: HPM) discovered 2021-11-01.000 UT by Jordi Camarasa ( (Rochester Supernova site | Odd Trondal image ) HPM - High Proper Motion star ? |
| NGC 1569 - 2021-11-23 (T+22.7d) Image below (2021-11-23.734) was taken 22.7 days after reported discovery of 2021aczn No indication of any obvious transient object (new image compares well with an image taken in 2013) |
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| CCD Image (125% size, log scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2021-11-23 17:46 UT (#936004-08) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| NGC 1569 - Earlier Image 2021-11-09 (T+8.9d) Image below (2021-11-09.898) was taken 8.9 days after discovery of 2021aczn No indication of any obvious transient object (new image compares well with an image taken in 2013 |
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| CCD Image (125% size, log scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2021-11-09 21:42 UT (#932060-64) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| The object marked as a 'Supernova' in
Odd Trondal image is shown in the image below by white cross-hairs, but the feature doesn't seem to have changed since image taken in 2013 |
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| Annotated CCD Image (125% size, log scale, cropped) Image details as above |
| NGC 1569 - Earlier Image (2013) |
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| CCD Image (125% size, log scale, cropped) 4 x 120 sec exposure (average combine), 3x3 binning, C Filter 2013-10-15 19:08hUT (#549026-31) 12" LX200R (at f/9.7) + ST-10XME |
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Nova 2021aceg in M31 (Andromeda) AT 2021aceg (Type: EGN) discovered 2021-10-25.570 UT by XOSS Alias: PSP21ac, PNV J00473256+3938102 (Rochester Supernova site | Rochester EGN Page | Klaus Wenzel image ) |
| Nova 2021aceg in M31 - 2021-11-23 (T+29.2d) Image below (2021-11-23.751) was taken 29.2 days after discovery of 2021aceg EGN (faint) 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 2021-11-23 18:09 UT (#936013-17) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| Nova 2021aceg in M31 - Earlier Image 2021-10-31 (T+5.5d) Image below (2021-10-31.102) was taken 5.5 days after discovery of 2021aceg EGN is shown by white cross-hairs Measured magnitude +17.15 Object confirmed not to be a known foreground star using Aladin |
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| Annotated CCD Image (150% size, square root scale, cropped) 4 x 180s exposure (average combine), 3x3 binning, C Filter 2021-10-31 02:36 UT (#930169-73) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| Images of Nova 2021aceg (M31) on M31 Novae Page >> |
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NGC 6627 with SN 2021abkm (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 SN 2021abkm (T+40.6d) |
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| Annotated CCD Image (150% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2021-11-23 18:32 UT (#936019-23) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| NGC 6627 with SN 2021abkm - 2021-11-23 (T+40.6d) Image below (2021-11-23.766) was taken 40.6 days after discovery of 2021abkm SN (faint) is shown by white cross-hairs Object confirmed not to be a known foreground star using Aladin |
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| Annotated CCD Image (150% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2021-11-23 18:32 UT (#936019-23) 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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| NGC 9 with SN 2021zju (Pegasus) SN 2021zju (Type: Ib) discovered 2021-09-24.483 UT by ATLAS Alias: ATLAS21bjbm, ZTF21acdxhuv (Rochester Supernova site | Enrico Prosperi image ) |
| NGC 9 with SN 2021zju - 2021-11-23 (T+60.3d) Image below (2021-11-23.798) was taken 60.3 days after discovery of 2021zju Position of SN (faint) is shown by white cross-hairs |
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| Annotated CCD Image (150% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2021-11-23 19:18 UT (#936065-69) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| Images of SN 2021zju (NGC 9) on Supernovae 2021 Page >> |
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| NGC 327 with SN SN 2021aclv (Cetus) SN 2021aclv (Type: Ia) discovered 2021-10-30.214 UT by ZTF Alias: ZTF21acjeegy (Rochester Supernova site ) |
| NGC 327 with SN 2021aclv - 2021-11-23 (T+24.6d) Image below (2021-11-23.813) was taken 24.6 days after reported discovery of 2021aclv Supernova's reported position is shown by white cross-hairs It is not possible to demonstrate presence of SN as it is too close to the host galaxy's nucleus and too dim Measured magnitude +15.2 (nucleus + SN) vs Host Galaxy catalog mag (+13.5 or +14.1) & SN reported magnitude at discovery (+17.3) The bright object lying above the galaxy is confirmed to be a star (Aladin) |
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| Annotated CCD Image (100% size, square root scale, cropped) 3 x 180s exposure (average combine), 3x3 binning, C Filter 2021-11-23 19:37 UT (#936074-76) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| Images of SN 2021aclv (NGC 327) on Supernovae 2021 Page >> |
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| UGC 3240 with SN 2021vau (Orion) SN 2021vau (Type: Ia, z=0.036) discovered 2021/08/04.610 UT by ASAS-SN Alias: ASASSN-21ou, Gaia21dzq Host Alias : PGC 16668 (catalog mag +15.5) (Rochester Supernova site | Discovery image | Gaia21dzq ) |
| UGC 3240 with SN 2021vau - 2021-11-24 (T+111.4d) Image below (2021-11-24.049) was taken 111.4 days after discovery of 2021vau Supernova shown by white indicator line Measured magnitude +15.95 (SN + Host Nucleus) (vs catalog mag for UGC/PGC 16668 of +15.5) |
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| CCD Image (150% size, square root scale, cropped) 4 x 180s exposure (average combine), 3x3 binning, C Filter 2021-11-24 01:21 UT (#936167-70) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| Images of SN 2021vau (UGC 3240) on Supernovae 2021 Page >> |
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| Nova Cas 2021 (Cassiopeia) Nova in Cassiopeia discovered 2021-03-18.4236, by Yuji Nakamura (Japan) Magnitude at discovery +9.6 (unfiltered CCD) AT 2021hkn (Type: Nova) reported by 2021/03/30.055 UT by Gaia Alias: Gaia21bpe, AT 2021hkn, V1405 Cas |
| Nova Cas 2021 / AT 2021hkn - 2021-11-24
(T+250.7d) Image (2021-11-24.079) was taken 250.7 days after discovery of Nova Nova is shown by white cross hairs. Measured magnitude +8.64 (poor quality image) (linked with Detection Threshold = 50) |
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| Annotated CCD Image (100% size, linear scale, cropped) 3 x 30s exposure (average combine), 3x3 binning, C Filter 2021-11-24 01:56 UT (#936185-89) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| Nova Cas 2021 (V1405 Cas) Spectra - 2021-11-24 (T+250.7d) |
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| Spectra produced in AstroMain using Image taken with Star Analyser
200 30s exposure (single frame), 2x2 binning, S Filter 2021-11-24 02:00 UT (#936193) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| Images of Nova Cas 2021 on Novae Page >> |
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| C/2019 L3 (ATLAS) (passing through Lynx) Sun Distance 3.58 AU (approaching) Earth Distance 2.88 AU (430.6 million km) Poor contrast due to close proximity to bright Moon |
C/2019 L3 (ATLAS) - 2021-11-24, Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra -16.13 arcsec/hr, Dec -16.05 arcsec/hr) Poor contrast due to close proximity to bright Moon |
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| Annotated CCD Image (50% size, square root scale) 3 x 45s exposure (average combine), 3x3 binning, C Filter 2021-11-24 02:51 UT (#936227-33) 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) 3 x 45s exposure (average combine), 3x3 binning, C Filter 2021-11-24 02:51 UT (#936227-33) 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 >> |
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| 67P/Churyumov-Gerasimenko (passing through Cancer) Sun Distance 1.24 AU (turning) Earth Distance 0.42 AU (63.1 million km) Poor contrast due to close proximity to bright Moon |
67P/Churyumov-Gerasimenko - 2021-11-24, Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra 86.11 arcsec/hr, Dec 2.22 arcsec/hr) Poor contrast due to close proximity to bright Moon |
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| Annotated CCD Image (50% size, square root scale) 3 x 45s exposure (average combine), 3x3 binning, C Filter 2021-11-24 03:22 UT (#936246-48) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
Annotated CCD Image (100% size, log scale, cropped) 11 x 45s exposure (average combine), 3x3 binning, C Filter 2021-11-24 03:21 UT (#936240-53) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
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| Images of 67P/Churyumov-Gerasimenko on Comets 2021 Page >> |
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| C/2021 A1 (Leonard) (passing through Canes Venatici) Sun Distance 1.03 AU (approaching) Earth Distance 0.77 AU (114.9 million km) Passing by NGC 4631 (Caldwell 32) |
C/2021 A1 (Leonard) - 2021-11-17, Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra 152.49 arcsec/hr, Dec -31.49 arcsec/hr) |
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| Annotated CCD Image (50% size, square root scale) 3 x 60s exposure (average combine), 3x3 binning, C Filter 2021-11-24 03:47 UT (#936264-66) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
Annotated CCD Image (100% size, log scale, cropped) 9 x 60s exposure (average combine), 3x3 binning, C Filter 2021-11-24 03:50 UT (#936264-72) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
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| Images of C/2021 A1 (Leonard) on Comets 2021 Page >> |
| C/2021 A1 (Leonard) - False Colour Image(s) Inverse Spectrum |
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C/2021 A1 (Leonard) - 2021-11-24 Passing by NGC 4631 (top left) |
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| False Colour CCD Image (70% size, log scale) 9 x 60s exposure (average combine), 3x3 binning, C Filter 2021-11-24 03:50 UT (#936264-72) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
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| UGC 5751 with SN 2021abcw (Leo) SN 2021abcw (Type: Ibn) discovered 2021-10-11.480 UT by ASAS-SN Alias: ASASSN-21td, Gaia21ewv (Rochester Supernova site | Discovery Image ) |
| UGC 5751 with SN 2021abcw - 2021-11-24 (T+43.7d) Image below (2021-11-24.185) was taken 43.7 days after discovery of 2021abcw Position of reported SN (not visible) is shown by white cross-hairs |
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| Annotated CCD Image (150% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2021-11-24 04:36 UT (#936289-93) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| Images of SN 2021abcw (UGC 5751) on Supernovae 2021 Page >> |
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| UGC 5760 w/SN 2020zoq (Leo) SN 2020zoq (Type II, z=0.0, zhost=0.010040) discovered 2020/11/14.561 by ASAS-SN (Rochester Supernova site | Discovery Image | TNS 2020zoq ) |
| UGC 5760- Detail Image below (2021-11-24.201) was taken 374.6 days after discovery of 2020zoq (now faded) |
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| Annotated CCD Image (125% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2021-11-24 04:58 UT (#936296-300) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| UGC 5760 - Earlier Image (Nov 2020) UGC 5760 with SN 2020zoq - 2020-11-22 (T+7.7d) Image below (2020-11-22.259) was taken 7.7 days after discovery of SN 2020zoq SN is shown by white cross hairs. Measured magnitude +15.7 |
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| Annotated CCD Image (125% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2020-11-22 06:13 UT (#831415-19) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| Images of SN 2020zoq (UGC 5760) on Supernovae 2020 Page >> |
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| GCVS RR Lyr (Lyra) Alias: HIP 95497 RR Lyr, Period 0.5669 days |
| RR Lyr Spectra - Corrected. |
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| Spectra produced in AstroMain using Image taken with Star Analyser
200 5 x 45s exposure (average combine), 2x2 binning, S Filter 2021-11-23 18:56 UT (#936046-50) 12" LX200R (at f/10.4) + ST-10XME |
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| This Web Page: | CCD Images - Session 936 (2021-11-23) |
| Last Updated : | 2022-05-28 |
| Site Owner : | David Richards |
| Home Page : | David's Astronomy Web Site |
