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First day of winter

Faithful skywatcher Bill Westphal reminds us: The Winter Solstice occurs on Mon. Dec. 21 at 9:47 a.m. At that moment the Sun, in its apparent path around the Earth, reaches its farthest point in the South. This marks the beginning of Winter in the Northern Hemisphere and the beginning of Summer in the Southern Hemisphere. […]...

Dec 21, 2009 / More »