1) German surname 
[crater] Zöllner is a lunar impact crater located to the west of Sinus Asperitatis. To the north is the smaller crater Alfraganus and to the northwest lies the oval-shaped Taylor. Southeast of Zöllner is the smaller crater Kant. The rim of Zöllner forms an irregular oval, with the formation being longer in a north–south direction. The ...
Type: Term Pronunciation: zel′ner Definitions: 1. Johann F., German physicist, 1834-1882. See: Zöllner lines, under line