Innes is a lunar impact crater. It is located less than a crater diameter to the east-southeast of the prominent crater Seyfert. To the southeast is the crater Meggers, and to the west-southwest lies Polzunov. This crater has not been significantly worn due to impact erosion, and the features remain well-defined. (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.