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Gardner is a small lunar impact crater in the northeast part of the Moon. It lies due east of the crater Vitruvius, in a section of rough terrain north of the Mare Tranquillitatis. This crater was previously designated Vitruvius A before being given its present name by the IAU. To the northeast of Gardner is the larger crater Maraldi. It is a circular crater with sloping inner walls and an interior floor that occupies about half the total crater diameter. The southern half of the floor has a slight rise before reaching the inner wall. The crater is not significantly eroded, and the outer rim is relatively sharp and well-defined. ==References== * * * * * * * * * * * * 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「Gardner (crater)」の詳細全文を読む スポンサード リンク
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