Tags: Star.
Alnitak (Arabic: النطاق an-niṭāq) is a triple star some 736 light years distant in the constellation Orion. It is part of Orion’s Belt along with Alnilam and Mintaka and has a Bayer designation of Zeta Orionis (ζ Ori) and a Flamsteed designation of 50 Orionis.The primary star is a hot blue supergiant with an absolute magnitude of -5.25 and is the brightest class O star in the night sky with a visual magnitude of +2.04.
