Mairan (crater)

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Mairan is an impact crater on the plateau of the area between the Oceanus Procellarum to the west and the Mare Imbrium to the east peninsula. In north- north-east lies the crater comparable in size Sharp and northwest of the heavily eroded crater Louville. Along the southwestern side of the peninsula runs a sinuous groove that carries the name Rima Mairan and extends over a distance of about 100 kilometers from north to south.

The outer edge of Mairan was only slightly damaged by erosion and subsequent impacts and has retained its sharp-edged ridge. The surrounding area is rough and irregular, and, especially in the south and west, scarred from a myriad of tiny craters. The crater interior walls have a number of terraces and fall on a relatively flat crater floor out from.

In the west of Mare Mairan a small dome- shaped elevation rises labeled ' Mairan T'. This has at its highest point to a tiny crater.