Wikipedia
Petzval is a lunar impact crater that lies in the southern latitudes of the Moon's far side. This crater is located to the south of the larger Lippmann, and to the north of Doerfel. It was namer after the Hungarian-German inventor Joseph Petzval.
This is a moderately worn crater formation with features that have become rounded and less well defined due to impact erosion. There are only a few small craterlets along parts of the rim and inner wall. Some faded terrace structures appear along parts of the inner wall to the east and south. Within the interior are small craters in the southwest and northeast sections of the floor. Near the midpoint is a worn central peak.
Petzval lies to the southwest of the Mendel-Rydberg Basin, a 630 km wide impact basin of Nectarian age, and it is on the southeast margin of the Pre-Nectarian South Pole-Aitken Basin.
Usage examples of "petzval".
Eighteen hundred and ninety-nine Petzval at the CAE Stoessl in Gumpendorfer Strasse.
Kupka had claimed Petzval as a relative and had not asked Winter to keep his name out of it.
It was more than enough to pay for his coffee and the brandy, as well as any coffees and brandies that Petzval might have consumed while waiting for him.