Psi Centauri

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ψ Centauri
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Centaurus
Right ascension 14h 20m 33.43s[1]
Declination −37° 53′ 07.1″[1]
Apparent magnitude (V) +4.05
Characteristics
Spectral type A0IV
U−B color index −0.11
B−V color index −0.03
Variable type none
Astrometry
Radial velocity (Rv) −5 km/s
Proper motion (μ) RA: -63.69 ± 0.18[1] mas/yr
Dec.: -10.65 ± 0.15[1] mas/yr
Parallax (π) 12.60 ± 0.20[1] mas
Distance 259 ± 4 ly
(79 ± 1 pc)
Absolute magnitude (MV) −0.35±0.14[2]
Details[2]
Mass 3.06±0.10 M
Radius 3.84 R
Luminosity 148 L
Surface gravity (log g) 3.76±0.04 cgs
Rotational velocity (v sin i) 101 km/s
Age 269 Myr
Other designations
HR 5367, CD−37°9336, FK5 1373, HD 125473, HIP 70090, SAO 205453, GC 19337, CCDM J14206-3753
Database references
SIMBAD data

Psi Centauri (ψ Cen, ψ Centauri) is a star in the constellation Centaurus. ψ Centauri is a white A-type subgiant with an apparent magnitude of +4.05. It is approximately 259 light years from Earth.

References[edit]

  1. ^ a b c d e van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. Bibcode:2007A&A...474..653V. arXiv:0708.1752Freely accessible. doi:10.1051/0004-6361:20078357.  Vizier catalog entry
  2. ^ a b Gerbaldi, M.; et al. (June 1999), "Search for reference A0 dwarf stars: Masses and luminosities revisited with HIPPARCOS parallaxes", Astronomy and Astrophysics Supplement, 137 (2): 273–292, Bibcode:1999A&AS..137..273G, doi:10.1051/aas:1999248.