also called Acrux 13th brightest star (excluding the Sun) as seen from Earth. It actually is a binary star; its components have apparent magnitudes of 1.58 and 2.09. Alpha Crucis lies about 400 light-years from the Earth in the constellation Crux (The Southern Cross). The alternate name Acrux is probably a contraction of Alpha Crucis.
ALPHA CRUCIS
Meaning of ALPHA CRUCIS in English
Britannica English vocabulary. Английский словарь Британика. 2012