Eimmart (crater)

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Eimmart
Eimmart crater LROC.jpg
LRO mosaic
Coordinates 23°58′N64°48′E / 23.97°N 64.80°E / 23.97; 64.80
Diameter 44.99 km (27.96 mi)
Depth 3.2 km (2.0 mi)
Colongitude 296° at sunrise
Eponym Georg C. Eimmart
Lunar Orbiter 4 image Eimmart crater 4191 h3.jpg
Lunar Orbiter 4 image

Eimmart is a lunar impact crater that is located near the east-northeastern limb of the Moon, to the northeast of the Mare Crisium. It was named by the IAU in 1935. [1]

The rim of this crater has been lightly eroded, especially along the south-southeastern portion, but most of the edge remains intact. The small crater Eimmart A lies along the eastern rim, and is surrounded by a skirt of higher albedo material, particularly to the south and west across the interior of Eimmart. The interior floor is relatively level, and is marked by the ray material from Eimmart A.

The northern and eastern outer rim of this crater borders on the narrow Mare Anguis. To the northwest of Eimmart are the smaller crater Delmotte and the prominent Cleomedes.

Mare Anguis is the dark patch in the middle of this photo. The crater in the left center of the photo is Eimmart, and is at the northwestern tip of Mare Anguis. Mare Anguis.jpg
Mare Anguis is the dark patch in the middle of this photo. The crater in the left center of the photo is Eimmart, and is at the northwestern tip of Mare Anguis.

Satellite craters

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

EimmartLatitudeLongitudeDiameter
A24.0° N65.7° E7 km
B21.4° N66.5° E11 km
C22.4° N61.2° E24 km
D23.0° N69.1° E11 km
F23.3° N61.9° E8 km
G25.5° N64.8° E14 km
H22.1° N64.4° E16 km
K20.2° N67.6° E13 km

References

  1. Eimmart, Gazetteer of Planetary Nomenclature, International Astronomical Union (IAU) Working Group for Planetary System Nomenclature (WGPSN)