Craters Euler Origin of the name Leonhard; Swiss mathematician (1707-1783). When to observe it … Nearby Catena Yuri 48 km Rima Zahia 64 km Dorsum Thera 71 km Courtney 72 km Rima Euler 73 km Mons Vinogradov 97 km Jehan 108 km Natasha 114 km