David's Astronomy Pages
Images - Session 1320 (2025-05-05)

Objects Session Notes
Bullet 104P/Kowal - Comet  (non-detection)
Bullet C/2022 E2 (ATLAS) - Comet
   
Bullet NGC 5957 - Spiral Galaxy with Type Ia Supernova 2025fvw
   
  - 29P/Schwassmann-Wachmann attempt failed (due to uneven sky background)
   
Bullet Variable Stars (photometric monitoring)
- T CrB, AM Her, BL Lac
   
Bullet Nearby Stars (astrometric monitoring)
- HH And (Ross 248)
   
- All-night session (4.4 hr)
   
- 12" LX200 + ST-10XME for imaging
- TS 80mm APO + ZWO ASI178MC for guiding & imaging
- Ambient Temperature:1°C (min)
- CCD Temperature: -20°/-25°C
- Notes from 2025-05-05 >>
   
-

   

Observing Result

Image

Back to Top


104P/Kowal - Comet  (non-detection)

104P/Kowal - 2025-05-06
(passing through Sagittarius)
Sun Distance 5.26 AU (receeding)
Earth Distance 4.49 AU (671.3 million km)
   104P/Kowal - 2025-05-06, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra -15.32 arcsec/hr, Dec 2.64 arcsec/hr)
Image   Image
Annotated CCD Image (50% size, square root scale)
3 x 60s exposure (average combine), 3x3 binning, Clear Filter
2025-05-06 01:57 UT (#1320104-08)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
  CCD Image (125% size, square root scale, cropped)
Image details as above
     
Images of 104P/Kowal on Comets 2022 Page >>    

Back to Top


C/2022 E2 (ATLAS) - Comet

C/2022 E2 (ATLAS) - 2025-05-06
(passing through Andromeda)
Sun Distance 4.21 AU (receeding)
Earth Distance 5.00 AU (748.4 million km)
   C/2022 E2 (ATLAS) - 2025-05-06 Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra 12.09 arcsec/hr, Dec 7.26 arcsec/hr)
Image   Image
Annotated CCD Image (50% size, square root scale)
5 x 90s exposure (average combine), 3x3 binning, Clear Filter
2025-05-06 01:42 UT (#1320094-98)
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 C/2022 E2 (ATLAS) on Comets 2023 Page >>    
 Images of C/2022 E2 (ATLAS) on Comets 2024 Page >>    
 Images of C/2022 E2 (ATLAS) on Comets 2025 Page >>    

Back to Top


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 - 2025-05-05 (T+40.1d)
Image below (2025-05-05.946) was taken 40.1 days after discovery of 2025fvw
Position of reported supernova (still distinct, but fading) is shown by white cross-hairs 
Measured Magnitude +15.08 (Clear Filter)

Image

Annotated CCD Image (125% size, square root scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, Clear Filter
2025-05-05 22:47 UT (#1320016-18)
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 >>

Back to Top