Hendrix is a small lunar impact crater that is located , deep in the southern hemisphere. Hendrix lies about a crater diameter to the south-southwest of the crater White, just beyond the outer rim of the enormous walled plain Apollo. This is a roughly circular, bowl-shaped crater. The rim is sharp-edged and not noticeably eroded. (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.