http://www.athropolis.com/arctic-facts/fact-solstice-winter.htm
http://en.wikipedia.org/wiki/Winter_solstice
http://news.nationalgeographic.com/news/2009/12/091218-winter-solstice-date-2010-solstices-first-day-winter/
A diagram of the earth and sun's placement throughout the year. Winter solstice is on the right.
A picture of exposures from one day showing the sun's position during the winter solstice. When viewed from northern latitudes, the Sun will make its lowest arc through the sky along the southern horizon. This results in the shortest amount of time in between sunrise and sunset, and the fewest hours of daylight.
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