David's Astronomy Pages Images - Session 1150 (2023-09-28)

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Images (S1151)

Objects	Session Notes
62P/Tsuchinshan - Comet (Attempt) 103P/Hartley - Comet 126P/IRAS - Comet     Nova Cas 2021 - Nova (V1405 Cas)     Nova AT 2023trk - Extragalactic Nova in M31     NGC 2326 - Spiral Galaxy with Type II Supernova 2023pgb         Variable Stars (photometric monitoring) - RX And, BL Lac      Nearby Stars (astrometric monitoring) - None   -	- Morning session (2.3 hrs) started using Autostart after the expected cloud had cleared.     - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature: 11°C (min) - CCD Temperature:  -10°C - Notes from 2023-09-28 >>     -

62P/Tsuchinshan - Comet (Attempted Observation)

62P/Tsuchinshan (passing through Orion) Sun Distance 1.62 AU Earth Distance 1.17 AU (175.6 million km) Position of comet (not distinguishable) is indicated by white circle		62P/Tsuchinshan - 2023-09-29 Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra 110.72 arcsec/hr, Dec 7.16 arcsec/hr) No indication of comet at expected coordinates (white circle)
Annotated CCD Image (50% size, square root scale) 3 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-09-29 03:27 UT (#1150034-36) 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) 8 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-09-29 03:31 UT (#1150034-42) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
Images of 62P/Tsuchinshan on Comets 2023 Page >>
Images of 62P/Tsuchinshan on Comets 2024 Page >>

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103P/Hartley - Comet

103P/Hartley - 2023-09-29 (passing through Auriga) Sun Distance 1.08 AU (approaching) Earth Distance 0.38 AU (57.4 million km)		103P/Hartley - 2023-09-29 Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra 234.86 arcsec/hr, Dec -122.91 arcsec/hr)
Annotated CCD Image (50% size, square root scale) 2 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-09-29 03:11 UT (#1150023-24) 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) 9 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-09-29 03:15 UT (#1150023-31) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
Images of 103P/Hartley on Comets 2023 Page >>

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126P/IRAS - Comet

126P/IRAS - 2023-09-29 (passing through Cassiopeia) Sun Distance 1.95 AU Earth Distance 1.29 AU (193.0 million km)		126P/IRAS - 2023-09-29 Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra -94.20 arcsec/hr, Dec 74.44 arcsec/hr)
Annotated CCD Image (50% size, square root scale) 3 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-09-29 02:33 UT (#1150005-07) 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) 9 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-09-29 02:37 UT (#1150005-13) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
Images of 126P/IRAS on Comets 2023 Page >>

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Nova Cas 2021 - Nova (V1405 Cas)

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 - 2023-09-29 (T+924.7d) Image below (2023-09-29.162) was taken 924.7 days after discovery of nova Nova is shown by white cross hairs.  Measured magnitude +12.04

Annotated CCD Image (100% size, linear scale, cropped) 5 x 30s exposure (average combine), 3x3 binning, Clear Filter 2023-09-29 03:55 UT (#1150051-55) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Nova Cas 2021 (V1405 Cas) Spectra - 2023-09-29 (T+924.7d)

Spectra produced in AstroMain using Image taken with Star Analyser 200 5 x 90s exposure (average combine), 2x2 binning, S Filter 2023-09-29 04:01 UT (#1150056-60) 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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Nova AT 2023trk - Extragalactic Nova in M31

Nova AT 2023trk in M31 (Andromeda) AT 2023trk (Type: EGN) discovered 2023-09-26.461 UT by ATLAS Alias: ATLAS23tfn, PNV J00441143+4120239 Discovery Mag 17.38 (orange-ATLAS filter)  ( TNS 2023trk )

Nova M31 AT 2023trk Cam2 Reference Image, Position of AT 2023trk (not visible in this exposure) is shown by blue circle Limits of M31 Spiral Galaxy is shown by white ellipse White line crossing FOV is a satellite track.

Annotated CMOS Image (16% size) (10s exposure, 1x1 binning) 2022-09-29 04:08 UT TS 80mm APO, ZWO ASI178MC

Nova M31 AT 2023trk - 2023-09-29 (T+2.7d) Image below (2023-09-29.174) was taken 2.7 days after discovery of 2023trk Position of earlier transient (faint but distinct) is shown by white cross-hairs

Annotated CCD Image (100% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-09-29 04:19 UT (#1150063-67) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of Nova AT 2023trk (in M31) on Transients 2023 Page >>

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NGC 2326 - Spiral Galaxy with Type II Supernova 2023pgb

NGC 2326 with SN 2023pgb (Lynx) SN 2023pgb (Type: II) discovered 2023-08-12.496 UT by ZTF Alias: ZTF23aaxdfya Discovery Magnitude 17.44 ( r-ZTF)  ( TNS 2023pgb )

NGC 2326 with SN 2023pgb - 2023-09-29 (T+47.6d) Image below (2023-09-29.117) was taken 47.6 days after discovery of 2023pgb Position of reported SN (faint) is indicated by white cross-hairs. Measured Magnitude ? (unable to extract)

Annotated CCD Image (150% size, square root scale, cropped) 2 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-09-29 02:52 UT (#1150016-17) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2023pgb (in NGC 2326) on Supernova 2023 Page >>

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