Craters Fredholm Origin of the name Erik Ivar; Swedish mathematician (1866-1927). When to observe it … Nearby Proclus 70 km Macrobius 89 km Tisserand 103 km Crile 127 km Palus Somni 152 km Esclangon 159 km Lacus Bonitatis 159 km Dorsum Oppel 161 km