Rigel

Rigel (or Beta Orionis), is a blue supergiant star (spectral class B8Ia) and the primary of the Rigel system, located about 770 light years from Sol. It is located in or near Federation space. 

Rigel is actually a triple star. The main star is orbited by a binary system, Rigel B and C, which orbit one another closely at 28 AU and in turn orbit around Rigel as a unit, at a distance of about 2000 AU. The stars are similar, both belonging to the spectral class B9V. Rigel B is more massive, with a mass 2.5 times solar versus 1.9 solar mass of Rigel C.