David's Astronomy Pages Images - Session 1343 (2025-07-27)

Images (S1342)

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Images (S1343)

Objects	Session Notes
IC 1496 - Spiral Galaxy with Type IIn Supernova 2025X  (non-detection)     UGC 1325 - Elliptical Galaxy with Type Ia Supernova 2024aedt  (non-detection)     Variable Stars (photometric monitoring) - None     Nearby Stars (astrometric monitoring) - None	- Short session (1.2 hr).  Session start delayed by rain & cloud.     - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature :10°C (min) - CCD Temperature: -10°C - Notes from 2025-07-27 >>     -

Observing Result

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IC 1496 - Spiral Galaxy with Type IIn Supernova 2025X  (non-detection)

IC 1496 with SN 2025X (Pisces) SN 2025X (Type: IIn) discovered 2024-12-31.008 UT by Koichi Itagaki Alias: PSN J23305120-0256341, Gaia25aaf Alerting Magnitude 18.49 (G Gaia Filter Candidate SN near galaxy IC 1496  ( TNS 2025X (not found in TNS) | Gaia25aaf )

IC 1496 with SN 2025X - 2025-07-28 (T+209.1d) Image below (2025-07-28.071) was taken 209.1 days after discovery of 2025X Position of reported supernova (faded & no longer visible) is shown by white cross-hairs Non-Detection Limiting Magnitude +18.0 (Clear Filter) Poor quality image (image vignetting, single frame)

Annotated CCD Image (150% size, square root scale, cropped) 180s exposure (single frame), 3x3 binning, Clear Filter 2025-07-28 01:42 UT (#1343021) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2025X (in IC 1496) on Supernova 2025 Page >>

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UGC 1325 - Elliptical Galaxy with Type Ia Supernova 2024aedt  (non-detection)

UGC 1325 with SN 2024aedt (Pisces) SN 2024aedt (Type: Ia) discovered 2024-12-16.375 UT by ATLAS Alias: ATLAS24rks, ZTF24abxzhim Discovery Magnitude 18.55 (orange-ATLAS Filter)  ( TNS 2024aedt )

UGC 1325 with SN 2024aedt - 2025-07-28 (T+223.7d) Image below (2025-07-28.063) was taken 223.7 days after discovery of 2024aedt Position of earlier SN (lfade & no longer visible) is shown by white cross-hairs Non-Detection Limiting Magnitude +18.2 (Clear Filter) Poor quality image (vignetting issue, single frame due to bad guidescope focusing > bad guiding)

Annotated CCD Image (125% size, square root scale, cropped) 180s exposure (single frame), 3x3 binning, Clear Filter 2025-07-28 01:31 UT (#1343017) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2024aedt (in UGC 1325) on Supernova 2024 Page >>

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