Here's the followup picture from my previous post.
We can use the Sun to help highlight the geography of the Moon, as the Sun slowly rises other the lunar surface light flood into vallerys and crators, or vast shadows are cast by mountain ranges. You can see this on the closeup below, the terminator isn't smooth, its all bumpy, even over the space of a few hours you can often see quite dramatic changes along the terminator as the Sun floods into areas of shadow.
Below you can see quite a prominant feature on the western rim of Mare Crisium, just as the Sun begins to rise over the highground around the sea.
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