标签： 月华

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天文·每日一图

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月华、木星与土星

2021年01月19日 A Lunar Corona with Jupiter and Saturn Image Credit & Copyright: Alessandra Masi Explanation: Why does a cloudy moon sometimes appear colorful? The effect, called a lunar corona, is created by the quantum mechanical diffraction of light around individual, similarly-sized water droplets in an intervening but mostly-transparent cloud. Since li...

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天文·每日一图

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都灵上空的月华

2019 September 16 A Lunar Corona over Turin Image Credit & Copyright: Giorgia Hofer (Cortina Astronomical Association) Explanation: What are those colorful rings around the Moon? A corona. Rings like this will sometimes appear when the Moon is seen through thin clouds. The effect is created by the quantum mechanical diffraction of light around individual...