Polar circle
From Simple English Wikipedia, the free encyclopedia
A polar circle is either the Arctic Circle or the Antarctic Circle. On earth, the Arctic Circle is at a latitude of 66˚ 33' 38" N, and the Antarctic circle is at a latitude of 66˚ 33' 38" S. Areas between each polar circle and its pole (north pole, or south pole) will each year have at least one 24 hour period when the sun is continuously above the horizon and at least one 24 hour period when the sun is continuously below the horizion.
[edit] See also
[edit] External links
- Wolfram Mathworlds Polar circle calculation formula.