D'Arrest (crater)

This article is about the crater on the Moon. For the crater on Phobos, see D'Arrest (Phobos crater).
D'Arrest
Lunar Orbiter 4 image
Coordinates2°18′N 14°42′E / 2.3°N 14.7°E / 2.3; 14.7
Diameter30 km
Depth1.5 km
Colongitude344° at sunrise
EponymHeinrich d'Arrest
The crater area in a Selenochromatic format Image (Si)
Oblique view from Apollo 12

D'Arrest is a lunar impact crater that is located in the lava-flooded region to the west of the Mare Tranquillitatis. It is named after the German astronomer Heinrich Louis d'Arrest.[1] It lies to the southeast of the crater Agrippa and northwest of Delambre. Just to the northeast are the small, bowl-shaped craters De Morgan and Cayley.

The outer rim of D'Arrest is broken in several places, with a gash at the south end and a wide gap to the northeast where only a low ridge remains in place of the original wall. The interior has been resurfaced by lava, leaving a nearly flat, featureless floor. The surviving rim is low and worn, with ridges connecting it to the south and southwest.

  1. ^ "D'Arrest (crater)". Gazetteer of Planetary Nomenclature. USGS Astrogeology Research Program.