As seen from the Earth, the Moon's northern hemisphere is dominated by the smooth Maria. The southern hemisphere, however, is mostly rough upland. Maurolycus is one of the few craters prominent enough to stand out in this region, and sometimes appears stronger even than Tycho.

Photo: Thierry Legault. The full size original of this and other high definition lunar images may be seen at his High Resolution CCD Imaging site.

Inconstant Moon