Cardanus (Moon)

Named after Cardano, Girolamo Cardanus - Italian mathematician (1501-1576).

Cardanus is a lunar impact crater that is located in the western part of the Oceanus Procellarum. Due to its location the crater appears very oval because of foreshortening, and it is viewed almost from the side. Cardanus is distinctive for the chain of craters, designated Catena Krafft, that connect its northern rim with the crater Krafft to the north. The outer rim is sharp-edged and somewhat irregular, with a hummocky outer rampart and terraces along parts of the inner wall. (wikipedia entry)

A crater is a circular depression likely created by an impact event. On the Moon they are named after deceased scientists, polar explorers, astronauts or cosmonauts.