FN Canis Majoris

FN Canis Majoris
Observation data
Epoch J2000      Equinox J2000
Constellation Canis Major
Right ascension 07h 06m 40.76672s[1]
Declination −11° 17′ 38.4396″[1]
Characteristics
Spectral type B0.5 IV
Variable type Beta Cephei
Astrometry
Radial velocity (Rv)+31.00 ± 4.2 km/s
Proper motion (μ) RA: −3.14 ± 0.72[1] mas/yr
Dec.: 3.32 ±0.55[1] mas/yr
Parallax (π)1.07 ± 0.61[1] mas
Distanceapprox. 3,000 ly
(approx. 900 pc)
Details
Other designations
FN Canis Majoris, HR 2678, HD 53974, HIP 34301, SAO 152394
Database references
SIMBADdata

FN Canis Majoris is a variable subgiant star in the constellation Canis Major.

FN Canis Majoris is a blue-white B-type subgiant with an apparent magnitude that varies between +5.38 and +5.42 over a period of 36.7 hours.[2] It was classified as a Beta Cephei type variable star,[3] but is no longer considered to be one.[4]

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, Bibcode:2007A&A...474..653V, arXiv:0708.1752 Freely accessible, doi:10.1051/0004-6361:20078357
  2. ↑ Lefèvre, L.; Marchenko, S. V.; Moffat, A. F. J.; Acker, A. (2009). "A systematic study of variability among OB-stars based on HIPPARCOS photometry". Astronomy and Astrophysics. 507 (2): 1141–1201. Bibcode:2009A&A...507.1141L. ISSN 0004-6361. doi:10.1051/0004-6361/200912304.
  3. ↑ Hill, Graham (1967). "On Beta Cephei Stars: a Search for Beta Cephei Stars". The Astrophysical Journal Supplement Series. 14: 263. Bibcode:1967ApJS...14..263H. ISSN 0067-0049. doi:10.1086/190156.
  4. ↑ Stankov, Anamarija; Handler, Gerald (2005). "Catalog of Galactic β Cephei Stars". The Astrophysical Journal Supplement Series. 158 (2): 193–216. Bibcode:2005ApJS..158..193S. ISSN 0067-0049. arXiv:astro-ph/0506495 Freely accessible. doi:10.1086/429408.
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