Peirce (crater)

Peirce is a small lunar crater, named in honor of the mathematician Benjamin Peirce, which lies in the western part of Mare Crisium. That dark, circular lunar mare is located in the east-northeasterly part of the Moon's near side. Peirce lies to the north of the craters Yerkes and Picard, and southeast of Macrobius located outside the mare. Just over a crater diameter to the north of Peirce is the smaller Swift.

The rim of Peirce is roughly circular, with a slight outward bulge along the northwestern rim. There are indications of slumping along the sides of this section, producing a wider inner wall. It is generally bowl-shaped, and is marked only by a tiny craterlet along the inner southeast rim. The interior is marked by several furrows, ridges, as well as a low, conical hill near the midpoint.