David's Astronomy Pages Images - Session 1193 (2024-02-26)

Images (S1192)

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Images (S1194)

Objects

Session Notes

12P/Pons-Brooks - Comet NGC 1051 - Spiral Galaxy (UGCA 40) UGC 831 - Spiral Galaxy with Type IIb Supernova 2023wdd     Variable Stars (photometric monitoring) - None      Nearby Stars (astrometric monitoring) - None

- Evening Session (1.1 hrs effective) ending early due to Telescope Slewing issue and development of cloud. Session eventually closed by user due to forecast continuing cloud and potential rain.     - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature: 0°C (min) rising quickly & reaching 3°C by end of session - CCD Temperature:   -25°C - Notes from 2024-02-26 >>     -

Observing Result

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12P/Pons-Brooks - Comet (Outburst)

12P/Pons-Brooks - 2024-02-26 (passing through  Andromeda) Sun Distance 1.25 AU (approaching) Earth Distance 1.71 AU (255.5 million km)		12P/Pons-Brooks -  2024-02-26 Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra 189.24 arcsec/hr, Dec -27.45 arcsec/hr)
Annotated CCD Image (50% size, log scale) 90s exposure (single frame), 3x3 binning, Clear Filter 2024-02-26 19:22 UT (#1193016) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		Annotated CCD Image (100% size, log root scale, cropped) 7 x 90s exposure (average combine), 3x3 binning, Clear Filter 2024-02-26 19:28 UT (#1193016-22) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
12P/Pons-Brooks - 2024-02-26 Detail		12P/Pons-Brooks - 2024-02-26 Detail
Annotated false-colour CCD Image (50% size, log scale) 7 x 90s exposure (average combine), 3x3 binning, Clear Filter 2024-02-26 19:28 UT (#1193016-22) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		Annotated false-colour CCD Image (100% size, log scale, cropped) Inverse Spectrum Image details as left
Images of 12P/Pons-Brooks on Comets 2023 Page >>
Images of 12P/Pons-Brooks on Comets 2024 Page >>

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NGC 1051 - Spiral Galaxy (UGCA 40)

NGC 1051 (Cetus) Alias: UGCA 40 ( PGC 10128, catalog mag +13.4 or +12.8 Low Surface Brightness (LSB) Galaxy [ UGCA Galaxies ] Poor quality image (poor focus, altitude 18°) Target to be again be rescheduled for a later session

Annotated CCD Image (125% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-02-26 19:10 UT (#1193008-12) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

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UGC 831 - Spiral Galaxy with Type IIb Supernova 2023wdd

UGC 831 with SN 2023wdd (Andromeda) SN 2023wdd (Type: IIb) discovered 2023-11-01.445 UT by ATLAS Alias: ATLAS23uvt Discovery Magnitude 17.96 (orange-ATLAS Filter) (AT 2023wdd, Candidate Supernova later confirmed as Type IIb Supernova)  ( TNS 2023wdd )

UGC 831 with SN 2023wdd - 2024-02-26 (T+117.4d) Image below (2024-02-26.819) was taken 117.4 days after discovery of 2023wdd Position of reported supernova (not visible) is shown by white cross-hairs Very poor quality image (bad focus)

Annotated CCD Image (150% size, square root scale, cropped) 3 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-02-26 19:44 UT (#1193025-27) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2023wdd (in UGC 831) on Supernova 2023 Page >>

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