Other Free Encyclopedias » 21st Century Webster's Family Encyclopedia » 21st Century Webster's Family Encyclopedia - Anderson, Elizabeth Garrett to Arctic tern

Arctic Circle

sun

Arctic Circle, imaginary circle at 66 30′ N lat. roughly defining the tree line and marking the southernmost point of the polar area at which the midnight sun is seen. The sun never rises on the Arctic Circle at the winter solstice on or about Dec. 21.

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