Delisle (crater)

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Delisle
Delisle crater AS15-M-2332.jpg
Apollo 15 image
Coordinates 29°54′N34°36′W / 29.9°N 34.6°W / 29.9; -34.6 Coordinates: 29°54′N34°36′W / 29.9°N 34.6°W / 29.9; -34.6
Diameter 25 km
Depth 2.6 km
Colongitude 35° at sunrise
Eponym Joseph-Nicolas Delisle
The lunar craters Delisle (above) and Diophantus (below) from Apollo 15. NASA photo. AS15-M-2075.jpg
The lunar craters Delisle (above) and Diophantus (below) from Apollo 15. NASA  photo.

Delisle is a small lunar impact crater in the western part of the Mare Imbrium. It was named after French astronomer Joseph-Nicolas Delisle. [1] It lies to the north of the crater Diophantus, and just to the northwest of the ridge designated Mons Delisle. Between Delisle and Diophantus is a sinuous rille named Rima Diophantus, with a diameter of 150 km. To the northeast is another rille designated Rima Delisle, named after this crater.

Contents

The rim of Delisle is somewhat polygonal in form and it has a low central rise on the floor. There is some slight slumping along the inner wall, but overall the rim is still relatively fresh with little appearance of significant wear. The outer rim is surrounded by a small rampart of hummocky terrain.

Delisle is a crater of Eratosthenian age. [2]

This formation has also been designated "De l'Isle" in some sources.

Rima Delisle

This is a sinuous rille centered on selenographic coordinates 31.0° N, 32.0° W. It occupies a maximum diameter of 60 km. Three tiny craters in the vicinity of this feature have been assigned names by the IAU. These are listed in the table below.

CraterLongitudeLatitudeDiameterName source
Boris 30.6° N33.5° W4 km Russian masculine name
Gaston30.9° N34.0° W2 km French masculine name
Linda30.7° N33.4° W1 km Spanish feminine name

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 Delisle.

DelisleLatitudeLongitudeDiameter
K29.0° N38.4° W3 km

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References

  1. "Delisle (crater)". Gazetteer of Planetary Nomenclature. USGS Astrogeology Research Program.
  2. The geologic history of the Moon. USGS Professional Paper 1348. By Don E. Wilhelms, John F. McCauley, and Newell J. Trask. U.S. Government Printing Office, Washington: 1987. Table 12.2.