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 light of different colors has different wavelengths, each color diffracts differently. Lunar coronae are one of the few quantum mechanical color effects that can be easily seen with the unaided eye. Solar coronae are also sometimes evident. The featured image was taken last month from Paris, France. The blue beacon emanating from the Eiffel Tower did not affect the colorful lunar corona.

Portal Universe: Random APOD Generator

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Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (USRA)
NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.

Publikacii s klyuchevymi slovami: Moon - Luna - corona Publikacii so slovami: Moon - Luna - corona
Sm. takzhe: Zahod Zemli s "Oriona" Apollon-12 i Serveior-3 Naidite cheloveka na Lune "Muna Liza" Luna v poslednei chetverti i zvezdy-sestry Luna, pohozhaya na Saturn Yuzhnyi lunnyi peizazh Vse publikacii na tu zhe temu >>