Christmas Lunar X
Taken by Jean-Baptiste Feldmann on December 25, 2017 @
France
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Details:
The Lunar X (also known as the Werner X) is a clair-obscur effect in which light and shadow creates the appearance of a letter 'X' on the rim of the Blanchinus, La Caille and Purbach craters. The X is visible only for a few hours before the first quarter,slightly below the lunar terminator. Near to the X, the Lunar V is also visible, formed by Ukert crater and several other small craters (Wikipedia)
Photographer's website:
http://blogs.futura-sciences.com/feldmann/
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