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Antarctic Circle
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Antarctic Circle


Going along the 55th meridian, the Nautilus cut the Antarctic Circle on March 16 near eight o’clock in the morning.
Jules Verne  --  Twenty Thousand Leagues Under the Sea
  the northernmost latitude (in the Southern Hemisphere) at which the sun can remain continuously above or below the horizon for 24 hours
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Notes:
Concept Mastery:  All land below the Antarctic Circle is described as the Antarctic or Antarctic zone or Antarctic ecozone.  Land between the Antarctic Circle and the Tropic of Capricorn is called the Southern Temperate Zone.

From the circle, the number of twenty- four-hour periods of continuous day or of continuous night increases southward from one day to about six months each at the South Pole.

By definition, variations in the earth’s tilt change the exact location of the Antarctic Circle, but it is generally thought of as 6634 N or perhaps 66.5 S.
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Wikipedia: Antarctic Circle
Samples:
  • Going along the 55th meridian, the Nautilus cut the Antarctic Circle on March 16 near eight o’clock in the morning.
    Jules Verne  --  Twenty Thousand Leagues Under the Sea
  • Soon we had cleared the Antarctic Circle plus the promontory of Cape Horn.
    Jules Verne  --  Twenty Thousand Leagues Under the Sea
  • From this fact he drew the conclusion that the Antarctic Circle must contain considerable shores, since icebergs can’t form on the high seas but only along coastlines.
    Jules Verne  --  Twenty Thousand Leagues Under the Sea
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Associated words [difficulty]:   Antarctic Circle , Arctic Circle [8] , Tropic of Cancer [8]
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