Antarctic Circle

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Antarctic Circle

The Columbia Encyclopedia, Sixth Edition | 2008 | The Columbia Encyclopedia, Sixth Edition. Copyright 2008 Columbia University Press. (Hide copyright information) Copyright

Antarctic Circle imaginary circle on the surface of the earth at 66 1/2 °S lat., i.e., 23 1/2 ° north of the South Pole. It marks the southernmost point at which the sun can be seen at the winter solstice (about June 22) and the northernmost point of the southern polar regions at which the midnight sun is visible.

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Antarctic Circle

World Encyclopedia | 2005 | © World Encyclopedia 2005, originally published by Oxford University Press 2005. (Hide copyright information) Copyright

Antarctic Circle Southernmost of the Earth's parallels, 66.5° s of the Equator. At this latitude the sun neither sets on the day of summer solstice (December 22) nor rises on the day of winter solstice (June 21). See also Arctic Circle
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Antarctic Circle. (Image by Cburnett, GFDL)

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