Tau Centauri

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τ Centauri
Observation data
Epoch J2000.0
Constellation
(pronunciation)
Centaurus
Right ascension 12h37m42.2s
Declination −48°32′28″
Apparent magnitude (V) +3.85
Characteristics
Spectral type A2V
U-B color index +0.03
B-V color index +0.05
Variable type none
Astrometry
Radial velocity (Rv) +5 km/s
Proper motion (μ) RA: −186.61 mas/yr
Dec.: −6.45 mas/yr
Parallax (π) 24.77 ± 0.69 mas
Distance 131.7 ly (40.4 pc)
Absolute magnitude (MV) +0.82
Other designations
HR 4802, HD 109787, CD−47°7745, HIP 61622, SAO 223560, GC 17194
Database references
SIMBAD data

Tau Centauri (τ Cen / τ Centauri) is a star in the constellation Centaurus. It is a white A-type main sequence dwarf with an apparent magnitude of +3.85 and is approximately 131.7 light years from Earth.