Omega1 Cygni

For other star systems with this Bayer designation, see ω Cygni.
Omega1 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[1] mas
Distance910 ± 50 ly
(280 ± 10 pc)
Details
Other designations
45 Cyg, V2014 Cygni, HD 195556, HIP 101138, HR 7844, SAO 49712
Database references
SIMBADdata

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

  1. 1 2 3 4 5 van Leeuwen, F. (November 2007), "Validation of the new Hipparcos reduction", Astronomy and Astrophysics, 474 (2): 653–664, arXiv:0708.1752Freely accessible, Bibcode:2007A&A...474..653V, doi:10.1051/0004-6361:20078357
  2. 1 2 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
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