Sigma Centauri is a blue-white B-type main sequence dwarf star in the constellation Centaurus.
Mass 6.8 solar masses (+/- 0.1)
Radius 4.5 solar radii
Age 25.3 million years (+/- 6.3 million)
Right ascension 12 hours 28 min 2.38 sec
Declination -50 deg 13 min 50.29 sec
+3.91 apparent magnitude
-1.60 absolute magnitude
412 light years distant (+/- 9 ly)
Radial velocity 12.8 km/sec (+/- 1.4 km/sec)
Rotational velocity 169 km/sec