Craters Berosus Origin of the name Berosus the Chaldean; Babylonian astronomer (unkn-c. 250 B.C.). When to observe it … Nearby Hahn 114 km Gauss 239 km Bernoulli 239 km Messala 299 km Delmotte 320 km Eimmart 320 km Lacus Spei 323 km Seneca 329 km