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Features on the Moon

 

Montes Jura

Montes Jura is a mountain range in the northwest part of the Moon. It has a diameter of 422 km, with mountains rising to 6100m, which form a visually pleasing semi-circular ring around the Sinus Iridum, a bay along the northwestern edge of Mare Imbrium. The Islands to the south of the bay are Montes Recti and Montes Tenerife is just below brightly overexposed.

Grimaldi Basin

Grimaldi is a large basin located near the western limb of the Moon. The large crater with the peak in the middle is the crater associated with the basin. The inner wall of Grimaldi has been heavily worn and eroded by subsequent impacts that it forms a low, irregular ring of hills, ridges and peaks, rather than a typical crater rim.  The approximate diameter of the inner rim is 140 kilometers.

Marsh of Sleep

The area above is known as the Palus Somni (Latin for "Marsh of Sleep") and in 1907 it was described as having "a color which is unique upon the moon, a kind of light brown, quite unlike the hue of any of the other plains or mountain regions". It is an area on the Moon of which is level but uneven terrain that lies along the northeastern edge of Mare Tranquillitatis and the Sinus Concordiae.

The diameter of the marsh below the bright crater is 143 km. The surface of this feature has low ridges and patches of level terrain. It has a higher brightness than the lunar mare to the west or east and is a shade of grey typical of continental terrain.  A few minor craters lie within its borders, with the flooded Lyellalong the west edge, Crile to the east, and Franz to the northwest.

The area to the south east and off the side of this image is the the Mare Tranquillitatis, was the landing site for the first manned landing on the Moon on July 20, 1969, at 20:18 UTC. This marsh land and ridges would have been on the horizon of the astronauts and a area they would have looked at but avoided due to the rough terrain.