Langrenus (crater) in the context of Apollo 8

Webb is a small lunar impact crater that is located near the eastern edge of the Mare Fecunditatis, in the eastern part of the Moon near the equator. It was named after British astronomer Thomas William Webb. It is to the north of the prominent crater Langrenus, and west of Maclaurin.

The interior of Webb is relatively dark compared with the inner walls of the rim, and it has a low hill at the midpoint of the interior. On the lunar mare to the north is a faint marking of a ray system that appears to radiate from this crater. West of the crater is the wrinkle ridge Dorsa Andrusov.

Maclaurin is a lunar impact crater that is located in the eastern part of the Moon's near side. It lies just to the southeast of the small Mare Spumans, and to the northeast of the prominent crater Langrenus. To the east-southeast is Gilbert.

The rim of this crater is perhaps unusual for the number of lesser craters attached to the exterior. Along the northern rim are the lava-flooded Maclaurin O and Maclaurin K. There are also satellite craters along the northeastern, eastern, and southern walls. The only open stretches of rim are along the western side, and a brief stretch to the southeast. The three craters along the southern rim, which include Maclaurin A and Maclaurin N, have intruded into the formation sufficiently to compress and slightly flatten that end of the crater. But overall it retains a generally circular form.