Respighi is a small lunar impact crater that is located to the southeast of the crater Dubyago, near the eastern limb. To the east is the comparably sized Liouville. This is a crudely circular crater with inner walls that slope down to the darker interior central floor. The rim has not suffered significant erosion from subsequent impacts, but there is a shallower section to the south. (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.