Omega1 Cygni
- For other star systems with this Bayer designation, see ω Cygni.
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Cygnus |
| Right ascension | 20h 30m 03.54116s[1] |
| Declination | +48° 57′ 05.6446″[1] |
| Apparent magnitude (V) | +4.94 |
| Characteristics | |
| Spectral type | B2.5 IV |
| Variable type | β Cep[2] |
| Astrometry | |
| Radial velocity (Rv) | −21.90 ± 2 km/s |
| Proper motion (μ) | RA: 10.63 ± 0.18[1] mas/yr Dec.: 7.22 ± 0.16[1] mas/yr |
| Parallax (π) | 3.59 ± 0.18 mas[1] |
| Distance | 910 ± 50 ly (280 ± 10 pc) |
| Details | |
| Other designations | |
| Database references | |
| SIMBAD | data |
Omega1 Cygni (ω1 Cyg) is a star in the constellation Cygnus. Its apparent magnitude is 4.94. It appears to be a Beta Cephei variable star. Telting and colleagues report it as a Beta Cephei with a high degree of confidence as they found regular pulsations in its spectrum in a high-resolution spectroscopy study published in 2006,[2]
References
- ^ a b c d e van Leeuwen, F. (November 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
- ^ a b Telting, J. H.; Schrijvers, C.; Ilyin, I. V.; Uytterhoeven, K.; De Ridder, J.; Aerts, C.; Henrichs, H. F. (June 2006), "A high-resolution spectroscopy survey of β Cephei pulsations in bright stars", Astronomy and Astrophysics, 452 (3): 945–953, Bibcode:2006A&A...452..945T, doi:10.1051/0004-6361:20054730
 | This subgiant-star-related article is a stub. You can help Wikipedia by expanding it. |