David's Astronomy Pages Images - Session 1355 (2025-09-01)

Images (S1354)

Images Main

Home Page

Images (S1356)

Objects	Session Notes
AT 2024wqf - Type AGN Transient (4C 27.50) AT 2025kml - Type CV? Transient  (non-detection)     NGC 7331 - Spiral Galaxy with Type Ia Supernova 2025rbs       - NGC 6802 attempt failed (due to cloud)     Realtime Pictures from Current/Latest Session >>     Variable Stars (photometric monitoring) - BL Lac       - T CrB attempt failed (due to cloud)     Nearby Stars (astrometric monitoring) - None	- Attempted post-midnight session (1.7 hr). Session ended earlier by cloud.     - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature : 13.5°C (min). - CCD Temperature:  -10°C - Notes from 2025-09-01 >>     - Aurora Images from 2025-09-01 / 2025-09-02  >>

Observing Result

Back to Top

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

Back to Top

AT 2025kml - Type CV? Transient  (non-detection)

AT 2025kml (Pegasus) AT 2025kml (Type: CV?) discovered 2025-05-15.899 UT by XOSS Alias: PSP25I, TCP J22513664+3334177 Discovery Magnitude 16.21 (Clear Filter) [ TNS 2025kml ]

AT 2025kml - 2025-09-02 (T+109.1d) Image below (2025-09-02.032) was taken 109.1 days after discovery of 2025kml Positon of reported transient (not visible) is shown by white cross hairs.   Non-Detection Limiting Magnitude +19.4 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped) 3 x 180s exposure (average combine), 3x3 binning, Clear Filter 2025-09-02 00:51 UT (#1355027-29) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2025kml on Transients 2024  Page >>

Back to Top

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 - 2025-09-02 (T+49.9d) Image below (2025-09-02.010) was taken 49.9 days after discovery of 2025rbs Position of reported supernova (distinct, but fading) is shown by white cross-hairs Estimated Magnitude +13.4 (Clear Filter)

Annotated CCD Image (125% size, log scale, cropped) 4 x 180s exposure (average combine), 3x3 binning, Clear Filter 2025-09-02 00:24 UT (#1355010-14) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 7331 with SN 2025rbs - Earlier Image, 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 >>

Back to Top