X2 Centauri

For other stars with this Bayer designation, see x Centauri.

x² Centauri is a star located in the constellation Centaurus. It is also known by its designations HD 108114 and HR 4724. The apparent magnitude of the star is about 5.7, meaning it is only visible to the naked eye under excellent viewing conditions. Its distance is about 440 light-years (140 parsecs), based on its parallax measured by the Hipparcos astrometry satellite.^[1]

x² Centauri

Observation data Epoch J2000      Equinox J2000
Constellation	Centaurus
Right ascension	12h 25m 21.73494s[1]
Declination	−35° 11′ 11.0983″[1]
Apparent magnitude (V)	5.71[2]
Characteristics
Spectral type	B9 IV/V[3]
B−V color index	−0.06[4]
Astrometry
Radial velocity (Rv)	−11.3[5] km/s
Proper motion (μ)	RA: −40.56[1] mas/yr Dec.: −6.29[1] mas/yr
Parallax (π)	7.43±0.33 mas[1]
Distance	440 ± 20 ly (135 ± 6 pc)
Absolute magnitude (MV)	0.26[6]
Details
Temperature	11,500[6] K
Age	135[7] Myr
Other designations
x2 Cen, CD-34° 8146, HD 108114, HIP 60610, SAO 203450, HR 4724, GC 16938[8]
Database references
SIMBAD	data

x² Centauri's spectral type is B9IV/V, meaning it is a late B-type main sequence star or subgiant. These types of stars are a few times more massive than the Sun, and have effective temperatures of about 10,000 to 30,000 K. x² Centauri has a temperature of about 11,500 K.^[7] The star x¹ Centauri, which lies about 0.4′ away from x² Centauri, may or may not form a physical binary star system with x² Centauri, as the two have similar proper motions and distances.^[9]