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Images - Session 1173 (2023-12-16)
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12P/Pons-Brooks - Comet 29P/Schwassmann-Wachmann - Comet C/2021 O3 (PANSTARRS) - Comet (Attempt) AT 2022epv - CV Type Transient AT 2022trk - Transient AT 2023cz - CV Type Transient AT 2023qou - CV Type Transient (Attempt) AT 2023tjz - Transient / Carbon Star AT 2023tvi - CV Type Transient (Near NGC 6834) M31 - Spiral Galaxy with Type EGN Transient AT 2023yij M31 - Spiral Galaxy with Type EGN Transient AT 2023yqt vdB 133 - Reflection Nebula - UGC 831 w/AT2023wdd attempt failed (due to developing cloud) Variable Stars (photometric monitoring) - CY Lyr Nearby Stars (astrometric monitoring) - None
- Attempted All-Night Session (x.0 hrs) - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature: < -x°C (min) - CCD Temperature: -25/-30° C - Notes from 2023-12-16 >> -
| 12P/Pons-Brooks - 2023-12-16 (passing through Lyra) Sun Distance 2.19 AU (approaching) Earth Distance 2.43 AU (363.9 million km) |
12P/Pons-Brooks - 2023-12-16 Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra 85.33 arcsec/hr, Dec -4.19 arcsec/hr) |
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| Annotated CCD Image (50% size, square root scale) 90s exposure (single frame), 3x3 binning, Clear Filter 2023-12-16 19:24 UT (#1173044) 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) 7 x 90s exposure (average combine), 3x3 binning, Clear Filter 2023-12-16 19:24 UT (#1173044-50) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
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| 12P/Pons-Brooks - 2023-12-16 Detail | 12P/Pons-Brooks - 2023-12-16 Detail | |
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| Annotated false-colour CCD Image (50% size, log scale) 7 x 90s exposure (average combine), 3x3 binning, Clear Filter 2023-12-16 19:24 UT (#1173044-50) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
Annotated CCD Image (150% size, log scale, cropped) Image details as left |
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| Images of 12P/Pons-Brooks on Comets 2023 Page >> |
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| 29P/Schwassmann-Wachmann - 2023-12-16 (passing through Cancer) Sun Distance 6.16 AU (receeding slowly) Earth Distance 5.40 AU (808.4 million km) |
29P/Schwassmann-Wachmann - 2023-12-16 Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra -10.46 arcsec/hr, Dec 1.48 arcsec/hr) |
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| Annotated CCD Image (50% size, square root scale) 60s exposure (single frame), 3x3 binning, Clear Filter 2023-12-16 21:06 UT (#1173099) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
Annotated CCD Image (100% size, square root scale, cropped) Image details as left |
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| Images of 29P/Schwassmann-Wachmann on Comets 2023 Page >> |
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| C/2021 O3 (PANSTARRS) - 2023-12-16 (passing through Lyra) Sun Distance 7.59 AU (receeding) Earth Distance 8.12 AU (1.215 billlion km) Expected position (likely not visible) is shown by white circle |
C/2021 O3 (PANSTARRS) - 2023-12-16, Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra 22.47 arcsec/hr, Dec -2.30 arcsec/hr) Expected position (likely not visible) is shown by white circle |
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| Annotated CCD Image (50% size, square root scale) 3 x 90s exposure (average combine), 3x3 binning, Clear Filter 2023-12-16 19:01 UT (#1173032-34) 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) Image details as left |
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| Images of C/2021 O3 (PANSTARRS) on Comets 2022 Page >> |
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| AT 2022epv (Cygnus) AT 2022epv (Type: CV) discovered 2022-03-09.523 UT by MASTER Alias: MASTER OT J203049.39+365746.2 Discovery Magnitude 16.4 (Clear Filter) ( TNS 2022epv ) |
| Wider view of starfield surrounding AT 2022epv showing Nebulosity (vdB 133) near bright star 44 Cygni / HIP 101214 (mag 6.21) |
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| Annotated CCD Image (100% size, square root scale, cropped) 3 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-12-16 19:10 UT (#1173037-39) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| AT 2022epv - 2023-12-16 (T+647.3d) Image below (2023-12-16.797) was taken 647.3 days after discovery of 2022epv Position of reported transient (very faint) is shown by white cross-hairs Estimated Magnitude +17.5 (Clear Filter) |
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| Annotated CCD Image (100% size, linear scale, cropped) 3 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-12-16 19:10 UT (#1173037-39) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| Images of AT 2022epv on Transients 2022 Page >> |
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| AT 2022trk (Gemini) AT 2022trk (Type: CV) discovered 2022-09-05.669 UT by Gaia Alias: Gaia22dti Alerting Mag 14.53 (gZTF Filter, vs Historic Mag 14.91 +/- 0.03 SD Bight gal.plane source rises by 0.4 mag ( TNS 2022trk | Gaia22dti ) |
| AT 2022trk - 2023-12-16 (T+467.2d) Image below (2023-12-16.856) was taken 467.2 days after discovery of 2022trk Position of reported transient (distinct but faded) is shown by white cross-hairs Measured magnitude +14.73 (Clear Filter) |
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| Annotated CCD Image (100% size, linear scale, cropped) 5 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-12-16 20:37 UT (#1173078-82) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| Images of AT 2022trk on Transients 2022 Page >> |
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| AT 2023cz (Pisces) AT 2023cz (Type: CV) discovered 2023-01-08.461 UT by MASTER Alias: MASTER OT J011250.33+320817.5 Discovery Mag 14.6 (Clear Filter) vs Prior Non-Detection limiting mag 20.3 ( TNS 2023cz ) |
| AT 2023cz - 2023-12-16 (T+342.3d) Image below (2023-12-16.744) was taken 342.3 days after discovery of 2023cz Position of reported transient (faint, brightening) is shown by white cross-hairs Measured magnitude +16.01 (Clear Filter) |
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| Annotated CCD Image (100% size, linear scale, cropped) 3 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-12-16 17:54 UT (#1173012-14) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| Images of AT 2023cz on Transients 2023 Page >> |
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| AT 2023qou (Cygnus) AT 2023qou (Type: CV) discovered 2023-08-20.117 UT by XOSS Alias: KATS23Q001, Gaia23cao Discovery Mag 15.6 (Clear Filter) vs Prior Non-Detection limiting mag 18.0 UG candidate classified by XOSS Source not visible on PanSTARRS or DSS2 plate images in Aladin Gaia, 2023-08-20 02:48 15.11 KATS23Q001 2023 08 23.82 16.2CV ( TNS 2023qou | Gaia23cao ) |
| AT 2023qou - 2023-12-16 (T+118.7d) Image below (2023-12-16.832) was taken 118.7 days after discovery of 2023qou Position of earlier transient (not visible) is shown by white cross-hairs Non-Detection, limiting mag +17.7 (Clear Filter) |
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| Annotated CCD Image (100% size, linear scale, cropped) 3 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-12-16 20:00 UT (#1173069-71) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| Images of AT 2023qou on Transients 2023 Page >> |
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| AT 2023tjz (Orion) AT 2023tjz (Type: unk) discovered 2023-09-17.895 UT by Gaia Alias: Gaia23cnk Discovery magnitude 12.44 (G-Gaia filter) vs Historic Mag 10.71 Known Carbon star fades by 1.5 mag ( TNS 2023tjz | Gaia23cnk ) |
| AT 2023tjz - 2023-12-16 (T+90.0d) Image below (2023-12-16.863) was taken 90.0 days after discovery of 2023tjz Position of earlier reported transient (distinct, brightening ?) is shown by white cross-hairs Measured magnitude +12.61 (Clear Filter) |
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| Annotated CCD Image (100% size, linear scale, cropped) 3 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-12-16 20:45 UT (#1173085-87) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| Images of AT 2023tjz on Transients 2023 Page >> |
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| AT 2023tvi (Cygnus) AT 2023tvi (Type: CV) discovered 2023-09-29.797 UT by Gaia Alias: Gaia23crr Discovery magnitude 12.90 (G-Gaia filter) vs Historic magnitude 13.13 Bright blue gal.plane source rises by 0.2 mag ( TNS 2023tvi | Gaia23crr ) |
| AT 2023tvi - 2023-12-16 (T+78.0d) Image below (2023-12-16.816) was taken 78.0 days after discovery of 2023tvi Position of reported transient (distinct, stable) is shown by white cross-hairs Measured magntitude +12.75 (Clear Filter) |
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| Annotated CCD Image (100% size, linear scale, cropped) 5 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-12-16 19:38 UT (#1173054-58) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| Images of AT 2023tvi on Transients 2023 Page >> |
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| M31 with Nova AT 2023yij (Andromeda) AT 2023yij (Type: EGN) discovered 2023-11-23.799 UT by Castellani Flavio Alias: OMB-PNV21, PNV J00424587+4121379, Gaia23dnb Discovery Mag 19.1 (Clear Filter) Gaia, 2023-12-04 00:05 18.12 (T+10.2d) Gaia, 2023-12-18 06:09 19.31 (T+24.5d) ( TNS 2023yij | Gaia23dnb) |
| Nova M31 AT 2023yij - 2023-12-16
(T+22.9d) Image below (2023-12-16.728) was taken 22.9 days after discovery of 2023yij Position of reported transient (not visible) is shown by white cross-hairs |
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| Annotated CCD Image (100% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-12-16 17:36 UT (#1173005-09) 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) Image details as above |
| Images of Nova AT 2023yij (in M31) on Transients 2023 Page >> |
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| M31 with Nova AT 2023yqt (Andromeda) AT 2023yqt (Type: EGN) discovered 2023-12-03.515 UT by XOSS Alias: PSP23Q, PNV J00422755+4111086, Gaia23dmh Discovery Mag 16.22 (Clear Filter) Gaia, 2023-12-04 00:05 16.42 (T+0.5d) Gaia, 2023-12-18 01:55 19.66 (T+14.6d) ( TNS 2023yqt | Gaia23dmh) |
| Nova M31 AT 2023yqt - 2023-12-16
(T+13.2d) Image below (2023-12-16.755) was taken 13.2 days after discovery of 2023yqt Position of reported transient (faded & no longer visible) is shown by white cross-hairs Non-Detection, limiting magnitude +17.5 (Clear Filter) |
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| Annotated CCD Image (100% size, liner scale, cropped) 3 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-12-16 18:12 UT (#1173021-23) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| Images of Nova AT 2023yqt (in M31) on Transients 2023 Page >> |
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| vdB 133 (Cygnus) vdB 133 (van den Bergh) is a reflection nebula, reflecting the light of the double star 44 Cygni ( HIP 101214 mag 6.21) |
| Wider view of starfield surrounding AT 2022epv vdB 133 (van den Bergh) is a reflection nebula, reflecting the light of the double star 44 Cygni ( HIP 101214 mag 6.21) |
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| Annotated CCD Image (100% size, square root scale, cropped) 3 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-12-16 19:10 UT (#1173037-39) 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, log scale, cropped) Image details as above |
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| This Web Page: | Images - Session 1173 (2023-12-16) |
| Last Updated : | 2024-06-15 |
| Site Owner : | David Richards |
| Home Page : | David's Astronomy Web Site |
