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Euctemon is a lunar crater that is located in the northern part of the Moon, along the northwest rim of the Baillaud crater. To the southwest of Euctemon is the large Meton walled plain, and to the north-northeast lies the De Sitter crater. Due to its location, this crater appears foreshortened when viewed from the Earth.

The interior floor of this crater has been resurfaced some time following the original formation, leaving a nearly level, featureless plain surrounded by the worn outer rim. This floor is marked only by a number of tiny craterlets, and the small crater 'Euctemon K' near the southwest inner wall. A small crater has cut through the western rim, and has joined with the main crater by a gap in its eastern rim. The two craters now share a common floor. Just to the north is another small crater, 'Euctemon H', that now forms a wide cleft through the rim. Along the ridge that separates Euctemon from Baillaud is perched the small crater 'Euctemon N'.

General characteristics
Latitude 76.4° N
Longitude 31.3° E
Diameter 62 km
Depth Unknown
Colongitude   334° at sunrise
Eponym Euctemon
References See listing

Name Author: Riccioli (1651)

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 Euctemon crater.

Euctemon Latitude Longitude Diameter
C 76.2° N 38.9° E 20 km
D 77.1° N 39.2° E 20 km
H 76.3° N 26.6° E 16 km
K 75.9° N 28.4° E 7 km
N 75.5° N 33.1° E 8 km


"Ancient Greeks on the Moon"

see also: The Solar System

Astronomy Encyclopedia

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