Kategorien
Photometry

SN2025 rbs

  • Type: Ia supernova, confirmed by spectral analysis with best match to “normal” SN Ia (zₕₒₛₜ ≈ 0.002722, or ~40–45 million light-years distance)  
  • Host Galaxy: NGC 7331, an edge-on spiral galaxy in the constellation Pegasus, sometimes referred to as a Milky Way analogue. Its apparent magnitude is ~10.4  
  • Discovery Date: 14 July 2025 by the GOTO robotic survey (Gravitational-wave Optical Transient Observer)  
AAVSO results (July 26th,2025)

Observation with Smart-Telescopes

Kategorien
Photometry

Photometry

The following star fields can be used to perform photometric calibrations using standard stars and the AAVSO PHOT software. For Seestar use Jnow coordinates!

AAVSO Standard Fields with larger FoV

Northern Sky

NameRec(J2000)Dec(J200)Rec(Jnow )Dec(Jnow)No of StarsConstellationFoV /arcsec
NGC 779023:58:31.3261:12:09:.0

218Cassiopeia20
M678:51:21.2111:48:02.4

211Cancer20
Melotte 11112:24:3025:51:3012:25:45.1125°43’11.10″90Coma Berenices180
SA  200:45:51.1745:53:06.20:47:15.0246°01’16.10″23Virgo40
SA 3515:52:27.4944:42:27.8
Standard Star Fields on Northern Sky

AAVSO Standard Fields

Southern Sky

NameRec(J2000)Dec(J200)Rec(Jnow )Dec(Jnow)No of StarsConstellationFoV /arcsec
NGC 353211:05:33-58:43:48

288Carina45
NGC 12523:10:49-57:46:00
NGC 1252

36Horologium120
M1118:51:5.5-6:16:00

416Scutum15
SA920:55:15.50:47:26

41Pisces70