Bellot is a small lunar impact crater on the southwest edge of Mare Fecunditatis. It lies. To the southwest is Colombo, and to the west is Magelhaens. This crater is circular and bowl-shaped, with a small interior floor with inner sides that slope down smoothly to the bottom. (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.