Vestine is a heavily eroded impact crater , just beyond the northeastern limb. It lies to the southwest of the large walled plain Harkhebi, and to the northwest of the Maxwell–Richardson crater pair. The outer rim of this crater is an irregular ridge about the interior floor. The small satellite crater Vestine A lies across the northern 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.