Isidorus U (Moon)

Satellite Feature of Isidorus

Named after St. Isidore of Seville Isidorus - Spanish astronomer and encyclopaedist (c. 560-636).

Isidorus is a lunar crater that is located to the north of the Mare Nectaris, on the eastern half 's near side. It forms a pair with the slightly larger Capella, which is attached to the east-northeastern rim. To the west-southwest across the lunar mare are Mädler and the prominent Theophilus. The rim is circular and somewhat eroded, with several tiny craterlets lying across the northern rim. (wikipedia entry)