Euctemon (Moon)

Named after Euctemon - Greek astronomer (unkn-fl. 432 B.C.).

Euctemon is a lunar crater that is located in the northern part , along the northwest rim of the crater Baillaud. To the southwest is the large walled plain Meton, and to the north-northeast lies the crater De Sitter. Due to its location, Euctemon appears foreshortened when viewed from the Earth. The interior floor of this crater has been resurfaced some time following the original formation, leaving a nearly level, featureless plain surrounded by the worn outer rim. (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.