Nunn is a lunar impact crater that is located just beyond the eastern limb of the Moon, along the northern edge of Mare Smythii. To the east of this crater is the much larger Babcock, and to the northwest is Jansky. This is a circular, bowl-shaped crater with some impact wear along the northwestern rim and to a lesser degree along ...Found on http://en.wikipedia.org/wiki/Nunn_(crater)
Meaning as a surname: Pious as a nun.
Found on http://www.encyclo.co.uk/local/20139
No exact match found