李雅普诺夫环形山

李雅普诺夫环形山
月球轨道器4号拍摄的图像
坐标26°26′N 89°22′E / 26.43°N 89.36°E / 26.43; 89.36
直径67.6公里
深度2.7公里
余经日出时274°
命名来源亚历山大·米·李雅普诺夫

李雅普诺夫环形山(Lyapunov)是月球正面东北陆地区的一座古老的大型撞击坑，其东部处于月球背面。该陨坑形成于酒海纪[1]，其名称取自俄罗斯数学家及工程师亚历山大·米哈伊洛维奇·李雅普诺夫(1857年—1918年)，1964年被国际天文联合会批准接受。

描述

李雅普诺夫环形山及周边，月球轨道器4号拍摄。

该陨坑西北毗邻尤里陨石坑、北面紧靠瑞利环形山东南壁、东侧连接了约里奥环形山、哈勃环形山则位于它的西南[2]。李雅普诺夫环形山中心月面坐标为26°26′N 89°22′E / 26.43°N 89.36°E / 26.43; 89.36，直径67.6公里[3]，深度2.7公里[1]。

该陨坑呈多边形状，磨损程度中等，部分被约里奥环形山的西侧外壁覆盖。内侧坡壁较平坦，北侧重叠着撞击坑。坑壁高出周边地形1260米[1]，内部容积3800公里³[1]。坑底北部和东南区覆盖额相邻陨坑形成时溅射的岩石，其中北侧到中心点之间形成了崎岖的三角形地表，坑内其它区域则较为平坦，显示有一些小撞击坑的痕迹。

参考文献

  1. ^ 1.0 1.1 1.2 1.3 Lunar Impact Crater Database
  2. ^ Crater Lyapunov on LAC-45 map (PDF). [2016-05-23]. （原始内容存档 (PDF)于2020-09-21）. 
  3. ^ Directory of the International Astronomical Union. [2016-05-23]. （原始内容存档于2018-07-13）. 

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