<P> The Arctic Circle is the most northerly of the five major circles of latitude as shown on maps of Earth . It marks the northernmost point at which the noon sun is just visible on the December solstice and the southernmost point at which the midnight sun is just visible on the June solstice . The region north of this circle is known as the Arctic, and the zone just to the south is called the Northern Temperate Zone . </P> <P> As seen from the Arctic, the Sun is above the horizon for 24 continuous hours at least once per year (and therefore visible at midnight) and below the horizon for 24 continuous hours at least once per year (and therefore not visible at noon). This is also true in the Antarctic region, south of the equivalent Antarctic Circle . </P> <P> The position of the Arctic Circle is not fixed; as of 22 January 2018, it runs 66 ° 33 ′ 47.0" north of the Equator . Its latitude depends on the Earth's axial tilt, which fluctuates within a margin of 2 ° over a 40,000 - year period, due to tidal forces resulting from the orbit of the Moon . Consequently, the Arctic Circle is currently drifting northwards at a speed of about 15 metres (49 feet) per year . </P> <P> The word arctic comes from the Greek word ἀρκτικός (arktikos: "near the Bear, northern") and that from the word ἄρκτος (arktos: "bear"). </P>

What degrees does the arctic circle sit at
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