The major stars that make up Orion include:
· Rigel
Rigel is the brightest star in the constellation. With an apparent visual magnitude of 0.18, it is also the sixth brightest star in the sky. The name Rigel comes from the Arabic phrase Riǧl Ǧawza al-Yusra, which means “the left foot of the central one.” Rigel marks Orion’s left foot.
· Betelgeuse
Betelgeuse is one of the largest stars known, with an apparent diameter between 0.043 and 0.056 arc seconds. Betelgeuse is the second brightest star in Orion and the eighth brightest star in the sky.
· Bellatrix
Bellatrix is a hot, luminous blue-white giant star, classified as an eruptive variable. Its magnitude varies between 1.59 and 1.64. It is one of the hotter stars visible to the naked eye.
· Alnilam, Alnitak & Saiph
Orion's Belt is one of the best known asterisks in the night sky. It is formed by three bright stars in the constellation Orion: Mintaka (Delta Orionis), Alnilam (Epsilon Orionis), and Alnitak (Zeta Orionis).
· Mintaka
Mintaka is the right-most star when observed from the Northern Hemisphere, facing south. The name Mintaka is derived from the Arabic word manţaqah, which means “area” or “region.”
Minor Stars:
Whilst these are the major stars that make up Orion, there are also minor stars that are found inside and around this constellation. These include Beta Orionis, Alpha Orionis, Gamma Orionis, Epsilon Orionis, Zeta Orionis, Kappa Orionis, Delta Orionis, Pi Orionis, Eta Orionis, Omicron Orionis, Mu Orionis, Chi Orionis, Nu Orionis and Xi Orionis.