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The Antarctic Circle is the northernmost latitude in the Southern Hemisphere at which the centre of the sun can remain continuously above the horizon for twenty-four hours; as a result, at least once each year at any location within the Antarctic Circle the centre of the sun is visible at local midnight, and at least once the centre of the sun i...
2024年8月25日 · Antarctic Circle, parallel, or line of latitude around Earth, at 66°30′ S. Because Earth’s axis is inclined about 23.5° from the vertical, this parallel marks the northern limit of the area within which, for one day or more each year, at the summer and winter solstices, the sun does not set.
- The Editors of Encyclopaedia Britannica
南極圈（英語： Antarctic Circle ）是地球上南緯66 34′(90 -23 26′)的一个假想圈，是南寒带与南温带的界线，其精确的纬度数值是与黄赤交角 互餘，其以内大部分是南極洲。
南極圈 （英語： Antarctic Circle）是地球上 南緯 66 ° 34′ (90°- 23°26′)的一個假想圈，是南 寒帶 與南 溫帶 的界線，其精確的 緯度 數值是與 黃赤交角 互餘，其以內大部分是 南極洲。. 南極圈附近因無山脈阻攔，盛行 西風， 溫帶氣旋 常常出現，又有海冰漂浮 ...
The Antarctic Circle is one of the five major circles of latitude that mark maps of the Earth. It is the parallel of latitude at 66° 33′ 39″ south of the Equator, crossing mostly the Southern Ocean. In the Antarctic Circle, all places have twenty-four hours of daylight on the Summer Solstice in December.
The Antarctic (or Antarctica) Circle is one of the five major circles or parallels of latitude that mark maps of the Earth. Shown on the image above with a dashed red line, this parallel of latitude sits at approximately 66.33° south of the Equator.
What is the Antarctic Circle? Polar Circles. The Arctic and Antarctic circles (at about 66°33’) indicate the zone furthest from the pole at which there is at least one day when the sun doesn’t fall below the horizon in mid summer – or rise at all at the winter solstice. This, of course is the result of the 23°23’ tilt in the earth’s axis.
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