Scoresby is a lunar impact crater that is located in the northern part 's near side. It is nearly attached to the crater Challis along the north-northwestern rim, and is located just to the north of the walled plain Meton. Due to its location, this crater appears highly foreshortened when viewed from the Earth, appearing elliptical in shape. It is, however, very nearly circular when seen from above. (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.