An Etymological Dictionary of Astronomy and Astrophysics

A blue-white → giant star of → spectral type B1 III with a visual magnitude of V = 0.61 lying in the constellation → Centaurus. It lies at a distance of 350 → light-years and is the eleventh brightest star of the night sky. Also called → Agena

See also: Hadar, from Ar. haZâr (حضار) “white camel.”