Ariadne (Venus)

Greek first name.

Ariadne Crater is a crater on Venus. Its central peak serves as the prime meridian of the planet, a status formerly held by Eve Crater until relocated. (wikipedia entry)

A crater is a circular depression likely created by an impact event. On Venus they are named after deceased women who have made outstanding or fundamental contributions to their field (if over 20 km). If smaller common female first names are used.