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春分時太陽直射在什麼地方
春分時太陽直射在什麼地方
更新时间:2026-02-02 13:26:52

  春分時太陽直射在赤道,和秋分日一樣。夏至日在北回歸線,冬至日在南回歸線。太陽直射點每時都在向西移動,每小移過15度經度。春分,太陽直射點在赤道,此後北移。夏至,太陽直射點在北回歸線上,此後南砻。秋分,太陽直射點在赤道,此後繼續南移冬至,太陽直射點在南回歸線上,此後北砻。如此周而複始回歸運動,周期為36日5時48分46秒,稱為一個回歸年。

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