天气预报 > 其他 > 南极几点天黑
南极几点天黑
更新时间: 2020-10-19 00:00:00  

南极是极地地区,有极昼极夜现象,极昼会持续六个月左右,同样极夜也会持续六个月左右,南极极昼时北极极夜,北极极昼时,南极极夜,太阳直射点在北半球,则南半球极圈到极点地区就会出现极夜,时间是在春分过后,南极附近就会出现极夜,此后极夜范围越来越大,至夏至日达到最大,边界到达南极圈,夏至日过后,南极附近极夜范围逐渐缩小,至秋分日,所以不存在几点天黑的问题。

关键词: 南极

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