The Winter Hexagon . ... 6.11.2002 . ... Credit Copyright: Jerry Lodriguss Explanation: Some of the brightest stars form a large and easily found pattern in the winter sky of Earth 's northern hemisphere . Dubbed the Winter Hexagon , the stars involved can usually be identified even in the bright night skies of a big city . The six stars that compose the Winter Hexagon are Aldebaren , Capella , Castor , Procyon , Rigel , and Sirius . ... NASA Web Site Statements, Warnings, and Disclaimers . ...