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

Antarctic Circle

solstice sun latitude

Antarctic Circle, imaginary boundary, 66°30' S lat., marking the northernmost latitude of the Antarctic region at which the sun remains above the horizon at least one day a year, the December solstice, and the southernmost latitude at which the sun is visible at the June solstice. Most of the continent of Antarctica lies within the circle.

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