D'Arrest (crater)

This article is about the crater on the Moon. There is also a crater on Phobos named D'Arrest (Phobos crater)

D'Arrest (crater)

Coordinates	2°18′N 14°42′E / 2.3°N 14.7°E / 2.3; 14.7Coordinates: 2°18′N 14°42′E / 2.3°N 14.7°E / 2.3; 14.7
Diameter	30 km
Depth	1.5 km
Colongitude	344° at sunrise
Eponym	Heinrich d'Arrest

D'Arrest is a lunar crater that is located in the lava-flooded region to the west of the Mare Tranquillitatis. 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.

Satellite craters

By convention these features are identified on lunar maps by placing the letter on the side of the crater mid-point that is closest to D'Arrest.

D'Arrest	Latitude	Longitude	Diameter
A	1.9° N	13.7° E	4 km
B	1.0° N	13.6° E	5 km
M	1.9° N	13.6° E	23 km
R	0.5° N	15.6° E	19 km

References

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