Geological Chronicle
Capella is a lunar impact crater 48 km (30 mi) in diameter that lies to the north of the Mare Nectaris, in a rugged region with many small impact craters. The formation spans an official diameter of 48.13 kilometers.
It intrudes slightly into the eastern rim of the crater Isidorus, a feature only slightly smaller in diameter. It is recorded in the IAU Gazetteer under quadrangle LAC-79.