Orion (the hunter), star constellation resembling the shape of a man, named from Greek mythology. Three bright aligned stars make up Orion's belt and a group of fainter stars depict his sword. The yellow-red star Betelgeuse identifies the left shoulder, and the star Rigel his right foot. Innumerable faint stars and luminous masses of gas and dust complete Orion's figure.
See also: Constellation.