Definition
Beta Centauri, also called Hadar, is one of the brightest stars in the night sky. It's not just one star, but a system of at least three stars orbiting each other. Think of it as a stellar triple threat! It's located in the constellation Centaurus, which is visible from the Southern Hemisphere. It appears bluish-white and is much hotter and more massive than our sun. It's basically a super-sized, southerly cousin to our own star.