ACRUX - is the brightest star in constellation Crux (the Southern Cross) and the twenty-third brightest star in the nighttime sky, at visual magnitude 0.77.The Acrux is represented in the flags of Australia and New Zealand as one of the five stars that comprise the Southern Cross. It is also featured in the flag of Brazil as part of the Crux, along with other 26 stars, each representing a state. Acrux represents the State of Sao Paulo.
Acrux is at roughly −60° declination, it is only visible south of the Tropic of Cancer. Acrux is the southern most first magnitude star, just a bit more southerly than Alpha Centauri.
Acrux is a trinary star located 320 light years from the solar system.
