HD 93205

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HD 93205
Observation data
Epoch J2000      Equinox J2000
Constellation Carina
Right ascension 10h 44m 33.74s[1]
Declination −59° 44′ 15.46″[1]
Apparent magnitude (V) 7.76[1]
Spectral type O3.5Vf + O8V[2]
Other designations
V560 Car, 2MASS J1043374-5944154[1]

HD 93205, or V560 Carinae, is a binary stellar system, in the Carina Nebula (NGC 3372) in the constellation Carina. It consists of two massive O-stars that revolve around each other in 6 days. The more massive member, of type O3 V, has an estimated mass of 45 solar masses. The less massive member has approximately 20 solar masses (spectral class O8 V).[3]

Among its neighbors are some of the most massive and luminous stars in the galaxy, like Eta Carinae, HD 93250 and the binary HD 93129.


  1. ^ a b c d "SIMBAD basic query result: V560 Carinae". SIMBAD, Centre de Données astronomiques de Strasbourg. Retrieved October 18, 2010. 
  2. ^ Sota, A.; Maíz Apellániz, J.; Morrell, N. I.; Barbá, R. H.; Walborn, N. R.; Gamen, R. C.; Arias, J. I.; Alfaro, E. J. (2014). "The Galactic O-Star Spectroscopic Survey (GOSSS). II. Bright Southern Stars" 211 (1). p. 84. arXiv:1312.6222. Bibcode:2014ApJS..211...10S. doi:10.1088/0067-0049/211/1/10. 10. 
  3. ^ Antokhina; et al. (2000). "Light Curve Solution of HD 93205 (O3 V + O8 V) Containing the Earliest Known Star in a Well-studied Binary". The Astrophysical Journal 529 (1): 463–476. Bibcode:2000ApJ...529..463A. doi:10.1086/308228.