B Centauri

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This article is about HD 102964. For b Centauri, see HD 129116.
Not to be confused with Beta Centauri or Alpha Centauri B.
B Centauri
Diagram showing star positions and boundaries of the Centaurus constellation and its surroundings
Cercle rouge 100%.svg

Location of A Centauri (circled)
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Centaurus
Right ascension 11h 51m 08.69s[1]
Declination −45° 10′ 24.5″[1]
Apparent magnitude (V) +4.47
Spectral type K3III
U−B color index +1.46
B−V color index +1.30
Variable type none
Radial velocity (Rv) +2 km/s
Proper motion (μ) RA: -72.46 ± 0.16[1] mas/yr
Dec.: -7.85 ± 0.16[1] mas/yr
Parallax (π) 7.53 ± 0.22[1] mas
Distance 430 ± 10 ly
(133 ± 4 pc)
Absolute magnitude (MV) −1.29
Other designations
HR 4546, HD 102964, CD−44°7614, FK5 446, HIP 57803, SAO 223062, GC 16226
Database references

B Centauri (B Cen) is a star in the constellation Centaurus. It is an orange K-type giant with an apparent magnitude of +4.47 and is approximately 430 light years from Earth.


  1. ^ a b c d e van Leeuwen, F. (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.  Vizier catalog entry