Peirce (crater)

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Peirce (crater)
Peirce crater AS17-M-0290.jpg
Apollo 17 mapping camera image
Coordinates 18°18′N 53°30′E / 18.3°N 53.5°E / 18.3; 53.5Coordinates: 18°18′N 53°30′E / 18.3°N 53.5°E / 18.3; 53.5
Diameter 18 km
Depth 1.8 km
Colongitude 307° at sunrise
Eponym Benjamin Peirce
Peirce (center) and Swift (above center), from Apollo 17. The rays from the left are from Proclus. NASA photo.

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.

Satellite craters[edit]

By convention these features are identified on lunar maps by placing the letter on the side of the crater midpoint that is closest to Peirce.

Peirce Latitude Longitude Diameter
C 18.8° N 49.9° E 19 km

The following craters have been renamed by the IAU.


External links[edit]