Prandtl (Moon)

Named after Ludwig Prandtl - German physicist (1875-1953).

Prandtl is an impact crater on the far side. It lies across the southeastern outer rim of the huge walled plain Planck. This crater is roughly circular, but with an outward bulge to the south-southeast. The rim is worn but still retains a well-defined edge. (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.