标签: lunar corona

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大折射镜与月食

2021年11月26日 Great Refractor and Lunar Eclipse Image Credit & Copyright: Laurie Hatch Explanation: Rain clouds passed and the dome of the Lick Observatory’s 36 inch Great Refractor opened on November 19. The historic telescope was pointed toward a partially eclipsed Moon. Illuminated by dim red lighting to preserve an astronomer’s night visio...

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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...