David's Astronomy Pages Images - Session 1319 (2025-05-01)

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Images (S1320)

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Session Notes

29P/Schwassmann-Wachmann - Comet     AT 2022req - Type YSO Transient (non-detection) AT 2024wqf - Type AGN Transient (4C 27.50) AT 2025il - CV Type Transient, RU Peg     NGC 5957 - Spiral Galaxy with Type Ia Supernova 2025fvw     UGC 5695 - Spiral Galaxy with Type II Supernova 2025cfc UGC 12293 - Spiral Galaxy with Transient AT 2025gyi (non-detection)     Realtime Pictures from Current/Latest Session >>     Variable Stars (photometric monitoring) - T CrB, SS Her, BL Lac     Nearby Stars (astrometric monitoring) - None

- Post midnight session (3.1 hr)     - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature: 5°C (min) - CCD Temperature: -20°C - Notes from 2025-05-01 >>     - Aurora Images from 2025-05-01 / 2025-05-02  >>

Observing Result

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29P/Schwassmann-Wachmann - Comet 

29P/Schwassmann-Wachmann - 2025-05-01 (passing through Leo) Sun Distance 6.28 AU (receeding slowly) Earth Distance 6.00 AU (897.4 million km)		29P/Schwassmann-Wachmann - 2025-05-01 Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra 4.07 arcsec/hr, Dec -1.56 arcsec/hr)
Annotated CCD Image (50% size, square root scale) 6 x 90s exposure (average combine), 3x3 binning, Clear Filter 2025-05-02 00:00 UT (#1319010-15) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		Annotated CCD Image (125% size, square root scale, cropped) Image details as left
Images of 29P/Schwassmann-Wachmann on Comets 2023 Page >>
Images of 29P/Schwassmann-Wachmann on Comets 2024 Page >>
Images of 29P/Schwassmann-Wachmann on Comets 2025 Page >>

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AT 2022req - Type YSO Transient (non-detection)

AT 2022req (Cygnus) AT 2022req (Type: YSO) discovered 2022-08-11.575 UT by Gaia Alias: Gaia22diw Alerting Mag +16.75 (vs historic magnitude 18.06) >2mag brightening in known EXOR variable MGAB-V336  ( TNS 2022req | Gaia22diw )

AT 2022req - 2025-05-02 (T+994.5d) Image below (2025-05-02.045) was taken 994.5 days after discovery of 2022req Position of earlier transient (faded / not visible) is shown by white cross-hairs

Annotated CCD Image (175% size, linear scale, cropped) 2 x 180s exposure (average combine), 3x3 binning, Clear Filter 2025-05-02 01:10 UT (#1319042-44) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2022req on Transients 2022 Page >>

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AT 2024wqf - Type AGN Transient (4C 27.50)

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AT 2025il - CV Type Transient, RU Peg

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NGC 5957 - Spiral Galaxy with Type Ia Supernova 2025fvw

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UGC 5695 - Spiral Galaxy with Type II Supernova 2025cfc

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UGC 12293 - Spiral Galaxy with Transient AT 2025gyi (non-detection)

UGC 12293 with AT 2025gyi (Pegasus) AT 2025gyi (Type: unk) discovered 2025-04-07.505 UT by ZTF using Palomar 1.2m Oschin Telescope Alias: ZTF25aalvyrp Discovery magnitude 18.36 (r-ZTF Filter)  ( TNS 2025gyi)

UGC 12293 - Spiral Galaxy (alias PGC 70204, catalog mag +15.4)

Annotated CCD Image (50% size, square root scale) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2025-05-02 01:28 UT (#1319047-51) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 12293 with AT 2025gyi - 2025-05-02 (T+24.5d) Image below (2025-05-02.055) was taken 24.5 days after discovery of 2025gyi Position of reported transient (not visible) is shown by white cross-hairs Non-Detection Limiting Magnitude +18.5 (Clear Filter)

Annotated CCD Image (125% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2025-05-02 01:28 UT (#1319047-51) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2025gyi (in UGC 12293) on Transients 2025 Page >>

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