BP Circini

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BP Circini
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Circinus
Right ascension 14h 46m 41.97980 s [1]
Declination −61° 27 42.9906 [1]
Spectral typeF2/F3II+B6.0 [1]

BP Circini is a star in the constellation Circinus. A Cepheid variable, its apparent magnitude ranges from 7.37 to 7.71 over 2.4 days.[2] It is a yellow-white supergiant of spectral type F2 or F3II.[1] A spectroscopic binary, it has a 4.7 solar-mass companion that is a blue-white star of spectral type B6.[3]

References

  1. 1.0 1.1 1.2 1.3 "BP Circini". SIMBAD Astronomical Database. Centre de Données astronomiques de Strasbourg. Retrieved 24 January 2014. 
  2. BSJ (30 November 2013). "BP Circini". AAVSO Website. American Association of Variable Star Observers. Retrieved 24 January2014. 
  3. Evans, Nancy Remage; Bond, Howard E.; Schaefer, Gail H.; Mason, Brian D.; Karovska, Margarita; Tingle, Evan (2013). "Binary Cepheids: Separations and Mass Ratios in 5M ⊙ Binaries". Astronomical Journal 46 (4): 93, 10 pp. 
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