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Community photo entitled  by Dr Ski on 04/11/2019 at Valencia, Philippines

On 04/11/2019 06:30 am by Dr Ski | Valencia, Philippines

Another great apparition of the Lunar feature I call "Alexander's Crown". This is the distorted rim of Alexander crater, which borders the Sea of Serenity. It only appears on Lunar Day 6.

Canon EOS M10
90mm, f14 MakCas
Prime focus at 100x
1/20s, ISO1600