Dionysius A (Moon)

Satellite Feature of Dionysius

Named after St. Dionysius the Areopagite - Greek astronomer (fl. 1st century A.D.).

Dionysius is a lunar impact crater that lies on the western edge of the Mare Tranquillitatis. To the southeast is the crater pair of Ritter and Sabine. Just to the northwest is the system of rilles designated Rimae Ritter. These clefts follow a generally northwest direction. (wikipedia entry)