Would a viewer see Earth from the rim of Shackleton Crater? I've been researching this but so far have not found an answer.  If you were standing on the top of the rim of Shackleton Crater at the lunar south pole, would you be able to see any of Earth? I can't find anything about the height of the rim, although nearby Malapert Mountain is apparently visible from Earth so you could see Earth from Malapert.  Shackleton, though, I'm not so sure.  Any insights appreciated. KPRedmond
The moon has a monthly motion called libration Of interest to you is libration in latitude. The orbit isn't exactly in the plane of the ecliptic, and the rotation axis is slightly different from each. This means that about a week after passing its ascending node, you can see up to about 6.5 degrees past the moon's South pole. Two weeks later, the south pole is invisible, but then north pole can be seen.

From the point of view of an observer on Shackelton it would mean that over the course of a month the Earth would slowly rise and then set again.