bn:00063281n
Noun Concept
Categories: Lines of latitude, All articles needing additional references
EN
polar circle  Napapiri
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EN
A polar circle is a geographic term for a conditional circular line referring either to the Arctic Circle or the Antarctic Circle. Wikipedia
Either of two circles of latitude marking the extreme southerly points or northerly points at which the sun may remain above or below the horizon for 24 continuous hours at some point during the year Wikipedia Disambiguation
Circle of latitude Wikidata
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