Omicron2 Centauri

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 5000 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.

In 1996, Kaufer and colleagues calculated Omicron² Centauri to be around 136,000 times as luminous, 18 times as massive and have 131 times the diameter of the Sun.

ο² Cen forms a close naked eye pair with ο¹ Cen, another 5th magnitude supergiant.