V373 Cassiopeiae
| 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
- 1 2 3 4 5 van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752
. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357.Vizier catalog entry - ↑ Lyubimkov, L. S.; Rachkovskaya, T. M.; Rostopchin, S. I.; Tarasov, A. E. (1998). "The binary system V373 Cas: orbital elements, parameters of the components, and helium abundance". Astronomy Reports. 42 (3): 312–321. Bibcode:1998ARep...42..312L.
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