The entire rim of the crater was brightly lighted with its floor in amazingly dark shadow. There was a thin thread of dark shadow separating the lighted back rim of the crater from the peak that demarks the crater from the Mare. So it gave the effect of a narrow, bright cantelever extending from the north toward that huge peak on the south but not quite touching it. The apparent depth of the crater due to the contrast was so realistic you could almost imagine falling into the eyepiece if you stared at it long enough.
|Moon-Lite Atlas for chart II||Chart 01|