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Maskelyne is a solitary lunar crater that lies in the southeast part of the Mare Tranquillitatis. The outer rim has a somewhat polygonal shape, although it is generally circular. The inner walls are terraced and there is a low central rise at the midpoint of the floor. The landing site of the Apollo 11 expedition is located about 250 kilometers to the west-southwest. To the northeast are Wallach and Aryabhata. To the southeast is the bright Censorinus. To the south are the lunar mountains informally known as Duke Island and Boot Hill. ==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 Maskelyne. The following craters have been renamed by the IAU. * Maskelyne E — ''See'' Aryabhata (crater). * Maskelyne H — ''See'' Wallach (crater). File:Maskelyne F crater 4073 h1.jpg|Lunar Orbiter 4 image of Maskelyne F File:Maskelyne F crater as10-31-4580.jpg|Oblique view of Maskelyne F from Apollo 10 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Maskelyne (crater)」の詳細全文を読む スポンサード リンク
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