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金星凌日

琴日好多人去左睇金星凌日, 其實係咩自然現象? 幾時再有得睇?

By meko mo  (middle-school student) on 2012-06-07  Answers 2   Views 100

i can answer

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face

By Ling Cheung (pupil) on 2012-06-08

下次要等到2117年了! 因為一個世紀得兩次!

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By Ling Cheung (pupil) on 2012-06-08

金星凌日是指位於太陽和地球之間的行星金星直接從太陽的前方掠過,成為太陽表面的可見暗斑(並且遮蔽一小部分太陽對地輻射)的天文現象。當凌日發生時,從地球可以看見金星是在太陽表面上移動的一個黑色暗斑。

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