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CCD Images - Session 925 (2021-10-14)
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Objects Session Notes
67P/Churyumov-Gerasimenko - Comet C/2019 L3 (ATLAS) - Comet Nova Per 2020 - Nova (V1112 Per, AT2020abap) Nova Cas 2021 - Nova (V1405 Cas) V645 Cyg Stellar Group - Cluster of Stars AT 2021xrf - Transient AT 2021zkf - YSO Transient, V0645 Cyg M31 - Spiral Galaxy with CV Type Transient AT2021aaxp NGC 514 - Spiral Galaxy with Type Ia Supernova 2020uxz NGC 1166 - Spiral Galaxy with Type II Supernova 2021zby PGC 3792 - Local Group Galaxy (Pisces Dwarf), 3.0 mly (Attempt) VV37 - Interacting Galaxies (PGC 7894 & PGC 7901) Variable Stars (photometric monitoring) - BL Lac, RR Lyr Nearby Stars (astrometric monitoring) - DX Cnc, Groombridge 34
- Full night Session (8.8 hours). - Clear skies all night but poor seeing and moonlit - Main aims of the session were to acquire a selection of targets including Comet 67P/Churyumov-Gerasimenko - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature: 12°C (min) - CCD Temperature: -10°C - Notes from 2021-10-14 >> [ Local Files >> ] -
| 67P/Churyumov-Gerasimenko - 2021-10-15 (passing through Gemini) Sun Distance 1.23 AU (approaching) Earth Distance 0.44 AU (66.5 million km) |
67P/Churyumov-Gerasimenko - 2021-10-15, Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra 172.35 arcsec/hr, Dec 26.02 arcsec/hr) |
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| Annotated CCD Image (50% size, square root scale) 2 x 45s exposure (average combine), 3x3 binning, C Filter 2021-10-15 03:09 UT (#925140-41) 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) 5 x 45s exposure (average combine), 3x3 binning, C Filter 2021-10-15 03:11 UT (#925140-44) 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 >> |
| 67P/Churyumov-Gerasimenko - False Colour Image(s) Inverse Spectrum |
| 67P/Churyumov-Gerasimenko - 2021-10-15 |
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| False Colour CCD Image (70% size, log scale) 5 x 45s exposure (average combine), 3x3 binning, C Filter 2021-10-15 03:11 UT (#925140-44) 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) - 2021-10-15 (passing through Lynx) Sun Distance 3.64 AU (approaching) Earth Distance 3.47 AU (519.1 million km) |
C/2019 L3 (ATLAS) - 2021-10-15, Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra 21.55 arcsec/hr, Dec -12.59 arcsec/hr) |
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| Annotated CCD Image (50% size, square root scale) 45s exposure (single frame), 3x3 binning, C Filter 2021-10-15 00:26 UT (#925079) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
CCD Image (100% size, log scale, cropped) 45s exposure (single frame), 3x3 binning, C Filter 2021-10-15 00:26 UT (#925079) 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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| 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 - 2021-10-15 (T+323.3d) Image below (2021-10-15.120) was taken 323.3 days after discovery of nova Nova is shown by white cross hairs. Measured magnitude +15.4 (flat / fading slowly) |
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| Annotated CCD Image (100% size, linear scale, cropped) 3 x 90s exposure (average combine), 3x3 binning, C Filter 2021-10-15 02:58 UT (#925130-33) 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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| Nova Cas 2021 (Cassiopeia) Nova in Cassiopeia discovered 2021-03-18.4236, by Yuji Nakamura (Japan) Magnitude at discovery +9.6 (unfiltered CCD) AT2021hkn (Type: Nova) reported by 2021/03/30.055 UT by Gaia Alias: Gaia21bpe, AT2021hkn, V1405 Cas |
| Nova Cas 2021 / AT2021hkn - 2021-10-15 (T+210.6d) Image below (2021-10-15.049) was taken 210.6 days after discovery of Nova Nova is shown by white cross hairs. Measured magnitude +8.25 (linked with Detection Threshold = 30) |
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| Annotated CCD Image (100% size, linear scale, cropped) 4 x 30s exposure (average combine), 3x3 binning, C Filter 2021-10-15 01:12 UT (#925098-101) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| Nova Cas 2021 (V1405 Cas) Spectra - 2021-10-15 (T+210.6d) |
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| Spectra produced in AstroMain using Image taken with Star Analyser
200 2 x 30s exposure (average combine), 2x2 binning, S Filter 2021-10-15 01:16 UT (#925103-06) 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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| V645 Cyg Stellar Group (Cygnus) |
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| Annotated CCD Image (50% size, linear scale) 2 x 180s exposure (average combine), 3x3 binning, C Filter 2021-10-14 22:09 UT (#925025-26) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
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| Annotated CCD Image (100% size, linear scale, cropped) 2 x 180s exposure (average combine), 3x3 binning, C Filter 2021-10-14 22:09 UT (#925025-26) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| V645 Cyg Stellar Group - Detail |
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| Annotated negative CCD Image (150% size, log scale, cropped) Image details as above |
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| AT 2021xrf (Perseus) AT 2021xrf (Type: CV) discovered 2021-09-02.359 UT by Kumar Alias: GEOTS-2021-022 Discovery Mag +13.5 ( Rochester Supernova site | TNS 2021xrf ) |
| AT 2021xrf - 2021-10-15 (T+42.8d) Image below (2021-10-15.165) was taken 42.8 days after discovery of 2021xrf Position of reported transient (not visible) is shown by white circle Transient is presumed to have faded back to normal level Poor quality image (poor sky transparency, single frame) |
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| Annotated CCD Image (125% size, square root scale, cropped) 180s exposure (single frame), 3x3 binning, C Filter 2021-10-15 03:57 UT (#925158) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| Images of AT 2021xrf on Transients 2021 Page >> |
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AT 2021zkf / V0645 Cyg (Cygnus) AT2021zkf (Type: YSO) discovered 2021-09-13.232 UT by Gaia Alias: Gaia21ego, GCVS V0645 Cyg Triggering Magnitude 11.16 (G-Gaia Filter) vs Historic Magnitude 12.14 +/- 0.29 SD Slow rise of known YSO V645 Cyg, 1 mag in over 5 years ( TNS 2021zkf | Gaia21ego ) |
| AT 2021zkf - 2021-10-14 (T+31.7d) Image below (2021-10-14.921) was taken 31.7 days after discovery of 2021zkf Position of transient (distinct) is shown by white cross-hairs Measured Magnitude +11.49 (Clear Filter) |
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| Annotated CCD Image (100% size, linear scale, cropped) 2 x 180s exposure (average combine), 3x3 binning, C Filter 2021-10-14 22:09 UT (#925025-26) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| Images of AT 2021zkf / V0645 Cyg on Transients 2021 Page >> |
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| M31 with AT2021aaxp (Andromeda) AT2021aaxp (Type: CV) discovered 2021-10-09.613 UT by Balam Alias: PNV J00444033+4113068 Discovery Magnitude 17.77 (G-Gaia Filter) Spectrum indicates this object is not a nova in M31 but a CV in the Milky Way Galaxy (TNS 2021aaxp classification) Rochester EGN Page | Klaus Wenzel image | TNS 2021aaxp ) |
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M31 with AT2021aaxp Image taken with secondary scope showing position of reported transient (blue circle) relative to outline of M31 galaxy (white ellipse) & M31 Galaxy centre (labelled) |
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CMOS Image (16% size) 10s exposure (stacked), 1x1 binning 2021-10-15 01:30 UT (#Cam2_Ref) TS 80mm APO, ZWO ASI178MC & PHD2 |
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M31 with AT2021aaxp (T+5.4d) Position of reported transient is shown by white cross-hairs FOV of CCD Images is shown by yellow rectangle in wider view CMOS image above |
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| Annotated CCD Image (50% size, square root scale) 3 x 60s exposure (average combine), 3x3 binning, C Filter 2021-10-15 00:35 UT (#925084-86) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| M31 with AT 2021aaxp - 2021-10-15 (T+5.4d) Image below (2021-10-15.023) was taken 5.4 days after discovery of 2021aaxp Position of reported transient (faint) is shown by white cross-hairs |
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| Annotated CCD Image (125% size, square root scale, cropped) 3 x 60s exposure (average combine), 3x3 binning, C Filter 2021-10-15 00:35 UT (#925084-86) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| Images of AT 2024aaxp (in M31) on Transients 2021 Page >> |
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| NGC 514 (Pisces) Spiral Galaxy with Type Ia Supernova [ Supernovae ] SN 2020uxz (Type 1a), discovered 2020/10/05.573 by Koichi Itagaki (Rochester Supernova site | Discovery Image | ) |
| NGC 514 with SN 2020uxz - 2021-10-15 (T+374.5d) Image below (2021-10-15.058) was taken 374.5 days after discovery of 2020uxz Position of earlier SN (faded & no longer visible) is shown by white cross hairs. |
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| Annotated CCD Image (100% size, square root scale, cropped) 4 x 120s exposure (average combine), 3x3 binning, C Filter 2021-10-15 01:29 UT (#925109-13) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| Images of SN 2020uxz (NGC 514) on Supernovae 2020 Page >> |
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| NGC 1166 with SN 2021zby (Aries) SN 2021zby (Type: II) discovered 2021-09-17.453 UT by ATLAS Alias: ATLAS21bixf (Rochester Supernova site | Enrico Prosperi image ) |
| NGC 1166 with SN 2021zby - 2021-10-15 (T+27.7d) Image below (2021-10-15.149) was taken 27.7 days after discovery of 2021zby Position of SN (faint) is shown by white cross-hairs Estimated Magnitude +16.7 (Clear Filter) |
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| Annotated CCD Image (150% size, square root scale, cropped) 3 x 180s exposure (average combine), 3x3 binning, C Filter 2021-10-15 03:39 UT (#925150-52) 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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| PGC 3792 (Pisces) 20 min total exposure showing slight trace of PGC 3792 [ Local Group Gaaxies ] |
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| CCD Image (70% size, square root scale) 4 x 300s exposure (average combine), 3x3 binning, C Filter 2021-10-14 23:41 UT (#925070-74) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
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| Annotated negative CCD Image (70% size, square root scale) Image details as above |
| PGC 3792 - Earlier Image (Sep 2021) 20 min total exposure showing no trace of PGC 3792 |
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| CCD Image (70% size, square root scale) 4 x 300s exposure (average combine), 3x3 binning, C Filter 2021-09-30 03:07 UT (#918277-80) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| PGC 3792 - Earlier Image (Jan 2021) 25 min total exposure showing no trace of PGC 3792 Despite longer exposure (25 min vs 9 min) poor sky transparency resulted in a poorer quality image than picture taken in Dec 2020. |
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| CCD Image (70% size, square root scale) 5 x 300s exposure (average combine), 3x3 binning, C Filter 2021-01-08 20:05 UT (#847093-97) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| PGC 3792 - Earlier Image (Dec 2020) 9 min total exposure Expected location of PGC 3792 shown by white circle Trace of some objects are just visible within circle and these might be part of the LG galaxy |
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| CCD Image (70% size, square root scale) 3 x 180s exposure (summed), 3x3 binning, C Filter 2020-12-20 22:06 UT (#840107-11) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| PGC 3792 - Earlier Image (2012) Expected location of PGC 3792 shown by white circle |
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CCD Image (50% size) 5 x 90s exposure (average combine), 3x3 binning, C Filter 2012-11-02 22:05 hUT (#520203-07) 12" LX200R (at f/9.7) + ST-10XME |
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| VV 37 (Andromeda) Vorontsov-Velyaminov Catalogue Alias: PGC 7894 & PGC 7901 [ Vorontsov-Velyaminov Galaxies ] |
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| Annotated CCD Image (50% size, square root scale) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2021-10-15 02:39 UT (#925122-26) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| VV 37 - Detail PGC 7894 (catalog mag +14.7), PGC 7901 (catalog mag +15.7) & PGC 7895 (catalog mag +17.1) |
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| Annotated CCD Image (150% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2021-10-15 02:39 UT (#925122-26) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
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| CCD Image (150% size, square root scale, cropped) Image details as above |
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| Negative CCD Image (150% size, square root scale, cropped) Image details as above |
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| This Web Page: | CCD Images - Session 925 (2021-10-14) |
| Last Updated : | 2024-06-05 |
| Site Owner : | David Richards |
| Home Page : | David's Astronomy Web Site |
