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Delisle crater (above) and Diophantus (below) from Apollo 15 '' NASA  photo''
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299
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N
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346
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W
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25 km
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26 km
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35
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is a small
Lunar Crater in the western part of the
Mare Imbrium . It lies to the north of the
Diophantus Crater , 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'', being named after this crater.
The rim of Delisle crater is somewhat
Polygon al 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.
This formation has also been designated "De l'Isle" in some sources.
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.
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 Delisle crater.
