Here is another crater, Bullialdus. One striking thing about this image is that the it's hard to tell what the inner peaks look like from the top, but the shadow reveals two triangles with perfect sides. This is 5,000 of 20,000 frames, stacked in AutoStakkert! 3, taken with the ZWO ASI224MC through the CFF 290 Classical Cassegrain at f/33.75.
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