Hyginus D (Moon)

Satellite Feature of Hyginus

Named after Caius Julius Hyginus - Spanish astronomer (fl. first century B.C.).

Its rim is split by a long, linear rille Rima Hyginus that branches to the northwest and to the east-southeast for a total length of 220 kilometers. Together the crater Hyginus and Rima Hyginus form a distinctive and prominent feature in an otherwise flat surface. Smaller craterlets can also be discerned along the length of this rille, possibly caused by a collapse of an underlying structure. (wikipedia entry)