BP Circini

BP Circini is a star in the constellation Circinus. A Cepheid variable, its apparent magnitude ranges from 7.37 to 7.71 over 2.39810 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 (M☉) companion that is a blue-white star of spectral type B6.[3]

BP Circini
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Circinus
Right ascension  14h 46m 41.97980s[1]
Declination −61° 27′ 42.9906″[1]
Spectral typeF2/F3II + B6.0[1]
Other designations
CD−60° 5320, HD 129708, HIP 72264, SAO 252879[1]

References
  1. "V* BP Cir". SIMBAD. 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 January 2014.
  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. 146 (4): 93, 10 pp. arXiv:1307.7123. Bibcode:2013AJ....146...93E. doi:10.1088/0004-6256/146/4/93.


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