Xi² Centauri

From Wikipedia, the free encyclopedia

For other star systems with this Bayer designation, see Xi Centauri.
ξ2 Centauri
Observation data
Epoch J2000.0
Constellation
(pronunciation)
Centaurus
Right ascension 13h06m54.6s
Declination −49°54′22″
Apparent magnitude (V) +4.27
Characteristics
Spectral type B1.5V
U-B color index −0.79
B-V color index −0.19
Variable type none
Astrometry
Radial velocity (Rv) +14 km/s
Proper motion (μ) RA: −26.24 mas/yr
Dec.: −12.43 mas/yr
Parallax (π) 7.92 ± 0.81 mas
Distance 412 ly (126 pc)
Absolute magnitude (MV) −1.23
Other designations
HR 4942, HD 113791, CD−49°7644, FK5 489, HIP 64004, SAO 223909, GC 17773, CCDM J13069-4954
Database references
SIMBAD data

Xi2 Centauri2 Cen / ξ2 Centauri) is a double star in the constellation Centaurus. It is approximately 412 light years from Earth.

The primary component, ξ2 Centauri A, is a blue-white B-type main sequence dwarf with an apparent magnitude of +4.27. Its companion, ξ2 Centauri B, is a tenth magnitude yellow-white F-type dwarf. The two stars share a common proper motion, inidicating they may be gravitationally bound.