David's Astronomy Pages
Images - Session 1314 (2025-04-10)

Objects Session Notes
Bullet 29P/Schwassmann-Wachmann - Comet
Bullet C/2025 F2 (SWAN) - Comet
   
Bullet NGC 5957 - Spiral Galaxy with Type Ia Supernova 2025fvw
   
   
Bullet Variable Stars (photometric monitoring)
- T CrB, CI Cyg, RZ LMi, TT Leo
   
Bullet Nearby Stars (astrometric monitoring)
- CN Leo
   
- Attempted All-Night Session (5.7 hr), finished early due to pre-dawn cloud
   
- 12" LX200 + ST-10XME for imaging
- TS 80mm APO + ZWO ASI178MC for guiding & imaging
- Ambient Temperature: 5°C (min)
- CCD Temperature: -15°/-20°C
- Notes from 2025-04-10 >>
   
- Aurora Images from 2025-04-10 / 2025-04-11  >>
Image

   

Observing Result

Image

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NGC 5957 - Spiral Galaxy with Type Ia Supernova 2025fvw

NGC 5957 with SN 2025fvw (Serpens)
SN 2025fvw (Type: Ia) discovered 2025-03-26.799 UT by Koichi Itagaki
using XingLong Telescope
Alias: ZTF25aaktqzg, GOTO25bhh, PS25avu, ATLAS25dcd
Discovery Magnitude 17.4 (Clear Filter)
 ( TNS 2025fvw )

NGC 5957 with SN 2025fvw - 2025-04-10 (T+15.2d)
Image below (2025-04-10.986) was taken 15.2 days after discovery of 2025fvw
Position of reported supernova (distinct, at peak brightness) is shown by white cross-hairs 
Measured Magnitude +13.68 (Clear Filter)

Image

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2025-04-10 23:48 UT (#1314080-84)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
SN 2025fvw - Light Curve

Image

 
Images of SN 2025fvw (in NGC 5957) on Supernova 2025 Page >>

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