 Beta is the brightest of the three stars. It's also the most complicated. It consists of six stars that orbit each other in a complex gravitational dance. At least two of the stars will become supernovas, and perhaps as many as four. All three systems were born from the same giant complex of gas and dust, and all of their stars are quite young, no more than about 15 million years old, compared to four and a half billion years for the sun.