Omicron² Centauri

For other star systems with this Bayer designation, see Omicron Centauri.

ο² Centauri

Observation data Epoch J2000.0      Equinox J2000.0
Constellation	Centaurus
Right ascension	11h31m48.8s
Declination	−59°30′57″
Apparent magnitude (V)	+5.12
Characteristics
Spectral type	A2Ia
U−B color index	−0.11
B−V color index	+0.49
Variable type	α Cyg
Astrometry
Radial velocity (Rv)	−17 km/s
Proper motion (μ)	RA: −6.59 mas/yr Dec.: 0.67 mas/yr
Parallax (π)	0.96 ± 0.58 mas
Distance	3400 ± 2100 ly (1040 ± 630 pc)
Absolute magnitude (MV)	−4.96
Other designations
HR 4442, HD 100262, CP−58°3693, FK5 2920, HIP 56250, SAO 239146, GC 15820
Database references
SIMBAD	data

Omicron² Centauri (ο² Cen, ο² Centauri) is a star in the constellation Centaurus.

ο² Centauri is a white A-type supergiant with a mean apparent magnitude of +5.12. It is approximately 3400 light years from Earth. It is classified as an Alpha Cygni type variable star and its brightness varies from magnitude +5.12 to +5.22 with a period of 46.3 days.