北回歸線(英文:The Tropic of Cancer)係地球嘅一條線,即係太陽直射地球最北面嘅位置(嗰日叫夏至),即係北緯23度26分221點448秒。因為地球識自轉嘅,所以會出現咗白天同埋晚黑出嚟嘅嘢。但係,地球嘅自轉軸唔係同兜住太陽公轉嘅軌道面(黃道面)搞成90°,而係搞成大概66.55°嘅夾角(又可以嗌「黃赤交角」)。由於有咗條「黃赤交角」響度,所以太陽喺地球表面嘅直射位唔係一直對住條赤道,而係喺北回歸線同埋南回歸線之間嘅位入面喐嘅。
條北回歸線經過嘅國家同埋地區:中華人民共和國、中華民國、緬甸、印度、孟加拉、阿曼、阿拉伯聯合酋長國、沙地阿剌伯、埃及、利比亞、阿爾及利亞、西撒哈拉、巴哈馬、墨西哥。
中國係世界上最多北迴歸線標誌塔嘅國家,響呢度係寫出咗一大碴嘅北迴歸線紀念碑出嚟嘅。下面就係清單:
This article uses material from the Wikipedia 粵語 article 北回歸線, which is released under the Creative Commons Attribution-ShareAlike 3.0 license ("CC BY-SA 3.0"); additional terms may apply (view authors). 呢度嘅所有文字係根據 CC BY-SA 4.0 牌照嘅條款發佈;可能會有附加嘅條款。 Images, videos and audio are available under their respective licenses.
®Wikipedia is a registered trademark of the Wiki Foundation, Inc. Wiki 粵語 (DUHOCTRUNGQUOC.VN) is an independent company and has no affiliation with Wiki Foundation.