May 4, 2014

Arctic Circle

Holiday Resolution


The Arctic Circle is one of the five major circles of latitude that mark maps of the Earth. In 2012, it is the parallel of
latitude that runs 66° 33' 44″ (or 66.5622°) north of the Equator.

The region north of this circle is known as the Arctic, and the zone just to the south is called the Northern Temperate Zone. The equivalent polar circle in the Southern Hemisphere is called the Antarctic Circle.

The position of the Arctic Circle is not fixed. It directly depends on the Earth's axial tilt, which fluctuates within a margin of 2° over a 40,000-year period, notably due to tidal forces resulting from the orbit of the Moon. The Arctic Circle is currently drifting northwards at a speed of about 15 m (49 ft) per year; see Circle of latitude for more information.

The Arctic Circle passes through the Arctic Ocean, the Scandinavian Peninsula, North Asia, Northern America and Greenland. The land on the Arctic Circle is divided among eight countries: Norway, Sweden, Finland, Russia, the United States (Alaska), Canada, Denmark (Greenland), and Iceland (where it passes through the small offshore island of Grímsey).

The area north of the Arctic Circle is about 20,000,000 km² (7,700,000 sq mi) and covers 4% of the Earth.

Source: Wikipedia



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