Tags: Star.
Alnilam is a large blue supergiant star in the constellation of Orion. It has a Bayer designation of Epsilon Orionis (ε Ori). Its Flamsteed designation is 46 Orionis.It is the 30th brightest star in the sky (the 4th brightest in Orion) and is a blue-white supergiant. Together with Mintaka and Alnitak the three stars make up the belt of Orion known by many names across many ancient cultures.
