Geological Chronicle
Eddington is the lava-flooded remnant of an impact crater on the western margin of Oceanus Procellarum. Its western rim is attached to the wall of the walled plain Struve, while the prominent crater Seleucus lies to the east-southeast and Krafft sits to the south.
Its southern and southeastern rim is almost completely gone, leaving only a few ridges in the mare and turning the formation into a bay within Oceanus Procellarum. The surviving rim forms an irregular, worn mountainous arc that is widest in the north. The floor contains no evident central peak and is largely free of significant craters, except for the nearly submerged Eddington P in the southeast.
The feature is named for British astronomer and mathematician Sir Arthur Eddington (1882–1944).