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Winter Hexagon

Winter Oval

Asterism of the winter sky (Northern Hemisphere)

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Right Ascension17h39 to 04h36
Declination-16.7° to +46.0°
Area (sq deg)1,828 (main hexagon)
Brightest StarSirius
Optimum VisibilityDecember
Map of the Winter Hexagon
Relative Galactic Position of the Winter Hexagon

The stars of the Winter Hexagon describe a broad segment of the nearer edge of the Milky Way Galaxy.

A large celestial area defined by six of the brightest stars of the winter sky. Opinion is divided over exactly which stars define this asterism, though the best approximation of a hexagon shape seems to be formed by Capella, Aldebaran, Rigel, Sirius, Procyon and Castor. Also in this region are the bright stars Betelgeuse and Pollux, and they are often also described as part of this winter grouping.