Name of one of the three stars of Orion's
belt also a
large blue supergiant star in the constellation of Orion
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. Alnilam is the middle star.