1) Patronymic surname 2) Russian surname
Found on
https://www.crosswordclues.com/clue/petrov
[crater] Petrov is an impact crater along the southeastern limb of the Moon. The crater is difficult to observe in this location, and visibility of this feature is affected by libration. The nearest crater of note is Chamberlin, just on the far side to the northeast. Somewhat farther to the west-southwest of Petrov is Gill. The rim of this ...
Found on
http://en.wikipedia.org/wiki/Petrov_(crater)
No exact match found.
