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Community photo entitled  by Dr Ski on 12/03/2019 at Valencia Observatory

On 12/03/2019 05:40 pm by Dr Ski| Valencia Observatory

With a typhoon approaching, the Moon was playing hide-and-seek. Had a narrow window to image it. But I had to give it a shot because I knew the terminator would highlight one of my favorite Lunar features: Alexander's Crown.

Canon EOS M100
800mm, f8 (approx 16x)
1/10s@ISO2000
Prime focus thru a 90mm Mak-Cas @ 100x
1/13s @ ISO2500