David's Astronomy Pages Images - Session 1345 (2025-08-02)

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Images (S1346)

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Session Notes

AT 2024wzq - CV Type Transient AT 2024aane - Transient  (non-detection)     2MFGC 13744 - Galaxy with Type II Supernova 2024afyu     NGC 7331 - Spiral Galaxy with Type Ia Supernova 2025rbs     UGC 386 - Spiral Galaxy with Type Ia Supernova 2025kno UGC 10058 - Spiral Galaxy with Type II Supernova 2025gvs     Variable Stars (photometric monitoring) - T CrB, BL Lac, CY Lyr     Nearby Stars (astrometric monitoring) - None

- Short session (2.8 hr).  Session ended early due to cloud & rain     - 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 2025-08-02 >>     -

Observing Result

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AT 2024wzq - CV Type Transient

AT 2024wzq (Serpens) AT 2024wzq (Type: CV) discovered 2024-09-28.573 UT by Gaia Alias: Gaia24csr Discovery Magnitude 13.97 (G-Gaia Filter) vs Historic Magnitude 14.75 +/- 0.26 SD 0.7 mag brightening in Gaia and WISE source [ TNS 2024wzq | Gaia24csr ]

AT 2024wzq - 2025-08-02 (T+308.4d) Image below (2025-08-02.958) was taken 308.4 days after discovery of 2024wzq Positon of earlier transient (faint) is shown by white cross hairs.   Measured Magnitude +14.65 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped) 4 x 60s exposure (average combine), 3x3 binning, Clear Filter 2025-08-02 23:03 UT (#1345023-27) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2024wzq - Earlier Image 2025-04-29 (T+212.5d) Image below (2025-04-29.063) was taken 212.5 days after discovery of 2024wzq Positon of earlier transient (faint) is shown by white cross hairs.   Measured Magnitude +14.23 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped) 4 x 60s exposure (average combine), 3x3 binning, Clear Filter 2025-04-29 01:33 UT (#1317050-54) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2024wzq on Transients 2024  Page >>

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AT 2024aane - Transient  (non-detection)

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2MFGC 13744 - Galaxy with Type II Supernova 2024afyu

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NGC 7331 - Spiral Galaxy with Type Ia Supernova 2025rbs

NGC 7331 with SN 2025rbs (Pegasus) SN 2025rbs (Type: Ia) discovered 2025-07-14.141 UT by GOTO using GOTO-North Telescope Alias: GOTO25evh, ATLAS25hsl, PS25feg, ZTF25abbgajq Discovery Magnitude 17.07 (L-Goto Filter) vs Prior Non-Detection Limiting Magnitude 20.1  ( TNS 2025rbs )

NGC 7331 with SN 2025rbs (T+19.9d) With adjacent galaxies NGC 7336, NGC 7335, NGC 7337, NGC 7340

Annotated CCD Image (70% size, log scale, cropped) 4 x 180s exposure (average combine), 3x3 binning, Clear Filter 2025-08-03 00:30 UT (#1345057-60) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 7331 with SN 2025rbs - 2025-08-03 (T+19.9d) Image below (2025-08-03.016) was taken 19.9 days after discovery of 2025rbs Position of reported supernova (distinct) is shown by white cross-hairs Measured Magnitude +12.08 (Clear Filter)

Annotated CCD Image (125% size, log scale, cropped) 4 x 180s exposure (average combine), 3x3 binning, Clear Filter 2025-08-03 00:30 UT (#1345057-60) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2025rbs (in NGC 7331) on Supernova 2025 Page >>

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UGC 386 - Spiral Galaxy with Type Ia Supernova 2025kno

UGC 386 with SN 2025kno (Pisces) SN 2025kno (Type: Ia, z=0.017785) discovered 2025-05-16.487 UT by ZTF using Palomar 1.2m Oschin Telescope Alias: ZTF25aaqksiw Discovery Magnitude 16.15 (r-ZTF Filter)  ( TNS 2025kno )

UGC 386 - Spiral Galaxy with SN 2025kno (T+78.5d)

Annotated CCD Image (50% size, square root scale) 3 x 180s exposure (average combine), 3x3 binning, Clear Filter 2025-08-02 23:59 UT (#1345050-52) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 386 with SN 2025kno - 2025-08-02 (T+78.5d) Image below (2025-08-02.996) was taken 78.5 days after discovery of 2025kno Position of reported supernova (faint) is shown by white cross-hairs Estimated Magnitude +17.5 (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped) 3 x 180s exposure (average combine), 3x3 binning, Clear Filter 2025-08-02 23:59 UT (#1345050-52) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2025kno (in UGC 386) on Supernova 2025 Page >>

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UGC 10058 - Spiral Galaxy with Type II Supernova 2025gvs

UGC 10058 with SN 2025gvs (Corona Borealis) SN 2025gvs (Type: II) discovered 2025-04-05.502 UT by ATLAS Alias: ATLAS25dpm Discovery magnitude 17.59 (cyan-ATLAS Filter) vs Prior Non-Detection Limiting Magnitude 17.7  ( TNS 2025gvs)

UGC 10058 with SN 2025gvs - 2025-08-02 (T+119.5d) Image below (2025-08-02.966) was taken 119.5 days after discovery of 2025gvs Position of reported supernova (faint fading slowly) is shown by white cross-hairs Measured Magnitude +17.28 (Clear Filter)

Annotated CCD Image (175% size, square root scale, cropped) 3 x 180s exposure (average combine), 3x3 binning, Clear Filter 2025-08-02 23:18 UT (#1345030-33) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 10058 with SN 2025gvs - Earlier Image, 2025-04-10 (T+4.6d) Image below (2025-04-10.069) was taken 4.6 days after discovery of 2025gvs Position of reported supernova (distinct, brightening) is shown by white cross-hairs Measured Magnitude +15.86 (Clear Filter)

Annotated CCD Image (175% size, square root scale, cropped) 3 x 180s exposure (average combine), 3x3 binning, Clear Filter 2025-04-10 01:47 UT (#1313110-13) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2025gvs (in UGC 10058) on Supernova 2025 Page >>

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