David's Astronomy Pages CCD Images - Session 1093 (2023-01-28)

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Session Notes

29P/Schwassmann-Wachmann - Comet C/2020 V2 (ZTF) - Comet C/2022 A2 (PANSTARRS) - Comet     AT 2022vzb - Transient  (Attempt) AT 2023fm - CV Type Transient AT 2023nf - CV Type Transient AT 2023vp - CV Type Transient     IC 1525 - Spiral Galaxy with Transient AT 2023aov  (Attempt) NGC 3938 - Spiral Galaxy with Type Ia-02cx Supernova 2022xlp NGC 5631 - Spiral Galaxy with Type Ia Supernova 2022aaiq       -  C/2021 Y1 (ATLAS), Nova M33 2022-11a?, NGC 3705 & AT2022ablr attempts failed (due to cloud)     Variable Stars (photometric monitoring) - BL Lac   - SS Cyg attempy failed (due to cloud)      Nearby Stars (astrometric monitoring) - HH And   - Groombridge 34 & CN Ori attempts failed (due to cloud)

- Evening session (7.2 hours) interrupted by passing cloud. Poor sky conditions (thin cloud & haze). Cloud thickened at 01:30 and ended the  session.     - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature: 1°C (min) rising later - CCD Temperature:  -20°/-25°C - Notes from 2023-01-28 >>

29P/Schwassmann-Wachmann - Comet

29P/Schwassmann-Wachmann - 2023-01-28 (passing through Auriga) Sun Distance 6.07 AU Earth Distance 5.22 AU (781.2 million km)		29P/Schwassmann-Wachmann - 2023-01-28 Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra -14.77 arcsec/hr, Dec -2.54 arcsec/hr)
Annotated CCD Image (50% size, square root scale) 8 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-01-28 20:29 UT (#1093070-78) 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) 8 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-01-28 20:29 UT (#1093070-78) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
Images of 29P/Schwassmann-Wachmann on Comets 2023 Page >>

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C/2020 V2 (ZTF) - Comet

C/2020 V2 (ZTF) - 2023-01-28 (passing through Cassiopeia) Sun Distance 2.50 AU (approaching) Earth Distance 2.19 AU (327.9 million km)		C/2020 V2 (ZTF) - 2023-01-28 Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra 8.03 arcsec/hr, Dec -105.64 arcsec/hr)
Annotated CCD Image (50% size, square root scale) 3 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-01-28 18:55 UT (#1093019-21) 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) 14 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-01-28 19:02 UT (#1093019-33) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
Images of C/2020 V2 (ZTF) on Comets 2022 Page >>  Images of C/2020 V2 (ZTF) on Comets 2023 Page >>

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C/2022 A2 (PANSTARRS) - Comet

C/2022 A2 (PANSTARRS) - 2023-01-28 (passing through Draco) Sun Distance 1.76 AU (approaching) Earth Distance 1.65 AU (247.0 million km)		C/2022 A2 (PANSTARRS) - 2023-01-28 Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra 326.29 arcsec/hr, Dec 1.61 arcsec/hr)
Annotated CCD Image (50% size, square root scale) 2 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-01-28 18:37 UT (#1093007-08) 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) 4 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-01-28 18:36 UT (#1093005-09) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
Images of C/2022 A2 (PANSTARRS) on Comets 2023 Page >>

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AT 2022vzb - Transient (Attempt)

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AT 2023fm - CV Type Transient

AT 2023fm (Cygnus) AT 2023fm (Type: CV) discovered 2023-01-10.703 UT by Gaia Alias: Gaia23afb Discovery Mag 13.49 (G-gaia filter) vs Historic magnitude 13.75) 0.25 mag rise in Gaia source in the galactic plane  ( TNS 2022ddt | Gaia23afb )

AT 2023fm - 2023-01-28 (T+18.1d) Image below (2023-01-28.781) was taken 18.1 days after discovery of 2023fm Position of reported transient (distinct) is shown by white cross-hairs Measured mag +13.43

Annotated CCD Image (100% size, linear scale, cropped) 4 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-01-28 18:47 UT (#1093012-15) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2023fm on Transients 2023 Page >>

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AT 2023nf - CV Type Transient

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AT 2023vp - CV Type Transient

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IC 1525 - Spiral Galaxy with Transient AT 2023aov (Attempt)

IC 1525 with AT 2023aov (Andromeda) AT 2023aov (Type: unk) discovered 2023-01-25.125 UT by ZTF Alias: ZTF23aaaznjk Discovery Mag 18.14 (r-ZTF Filter)  ( TNS 2023aov )

IC 1525 - Spiral Galaxy with AT 2023aov (T+3.7d)

Annotated CCD Image (50% size, square root scale) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-01-28 20:08 UT (#1093063-67) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

IC 1525 with AT 2023aov - 2023-01-28 (T+3.7d) Image below (2023-01-28.833) was taken 3.7 days after discovery of 2023aov Position of reported transient (very faint / not visible) is shown by white cross-hairs

Annotated CCD Image (150% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-01-28 20:08 UT (#1093063-67) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2023aov (IC 1525) on Transients 2023 Page >>

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NGC 3938 - Spiral Galaxy with Type Ia-02cx Supernova 2022xlp (Attempt)

NGC 3938 with SN 2022xlp (Ursa Major) SN 2022xlp (Type: Ia-02cx) discovered 2022-10-13.808 UT by Koichi Itagaki Alias: ATLAS22bkeb Discovery Magnitude 17  ( TNS 2022xlp )

NGC 3938 with SN 2022xlp - 2023-01-28 (T+107.1d) Image below (2023-01-28.953) was taken 107.1 days after discovery of 2022xlp Position of SN (not visible) shown by white cross-hairs Poor quality image (poor sky transparency and/or condensation in optics)

Annotated CCD Image (100% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-01-05 01:15 UT (#1082111-15) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2022xlp (NGC 3938) on Supernova 2022 Page >>

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NGC 5631 - Spiral Galaxy with Type Ia Supernova 2022aaiq

NGC 5631 with SN 2022aaiq (Ursa Major) SN 2022aaiq (Type: Ia) discovered 2022-11-15.057 UT by Patrick Wiggins Discovery Mag +16.0 (vs last non-detection, limiting mag +19)  ( TNS 2022aaiq )

NGC 5631 with SN 2022aaiq - 2023-01-28 (T+74.8d) Image below (2023-01-28.896) was taken 74.8 days after discovery of 2022aaiq Position of supernova (fading) is shown by white cross-hairs

Annotated CCD Image (125% size, log scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-01-28 21:39 UT (#1093117-21) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2022aaiq (NGC 5631) on Supernova 2022 Page >>

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