[[Image:wintersky.jpg|thumb|right|Red = Winter Trangle, Blue = Winter Hexagon]]
The '''Winter Hexagon''' is an [[asterism (astronomy)|asterism]] involving an [[imagination|imaginary]] [[hexagon]] [[drawing|drawn]], during the [[winter]], upon the [[northern hemisphere]]'s [[celestial sphere]];, with its defining [[vertex|vertices]] at [[Rigel]], [[Aldebaran]], [[Capella (star)|Capella]], [[Pollux (star)|Pollux]]/[[Castor (star)|Castor]], [[Procyon]], and [[Sirius]]. Pollux and Castor are very close (just a few degrees) from each other. On most locations on Earth (except the South Island of [[New Zealand]] and the south of [[Chile]] and [[Argentina]] and further south) this asterism is prominently in the sky from approx. December-March. In the tropics and southern hemisphere this (then called "summer hexagon") can be extended with the bright star [[Canopus]] in the south.
