Acrux is a bright star located in the constellation of Crux, also known as the Southern Cross. It is classified as a blue giant and is one of the most luminous stars visible from Earth. Acrux is approximately 320 light-years away and is notable for being the southernmost first-magnitude star in the sky. The star has a binary system, meaning it has a companion star orbiting around it. Acrux is often used in navigation due to its prominence in the southern hemisphere. Its brightness and position make it a key feature in the night sky for stargazers and astronomers alike.