V373 Cassiopeiae
From Infogalactic: the planetary knowledge core
| Observation data Epoch J2000 Equinox J2000 |
|
|---|---|
| Constellation | Cassiopeia |
| Right ascension | 23h 55m 33.839s[1] |
| Declination | +57° 24′ 43.81″[1] |
| Apparent magnitude (V) | 6.045 |
| Characteristics | |
| Spectral type | B0.5II + B4III |
| Astrometry | |
| Radial velocity (Rv) | −25.5 ± 0.9 km/s |
| Proper motion (μ) | RA: −3.49 ± 0.33[1] mas/yr Dec.: −0.10 ± 0.24[1] mas/yr |
| Parallax (π) | 0.17 ± 0.32[1] mas |
| Other designations | |
| Database references | |
| SIMBAD | data |
V373 Cas is a spectroscopic binary in the constellation Cassiopeia. It is composed of two hot blue-white giant stars that have exhausted their core hydrogen and expanded off the main sequence. Lyubimkov and colleagues analysed spectral and radial velocity to calculate that the stars were 18.6 ± 2.4 and 14.2 ± 1.9 times as massive as the Sun and the age of the system at around 7-8 million years old.[2]
References
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