AS15-9337(P)

Figure 112

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This small young crater has an incomplete ray pattern. It is located in central Mare Serenitatis. The small raised features on the flanks of the crater are blocks of ejected bedrock, probably mare basalt. The largest is about 30 m across. In this picture, where sunlight is from the east (right), raised features appear as bright spots casting a shadow to the west. Note the relative scarcity of blocks on the side lacking rays. The absence of rayed ejecta and of discrete blocks to the west suggest that the impacting body was traveling from west to east along an oblique trajectory. The roughly concentric ledges in the rayed crater result from the interaction of shock and stress waves with the layered substrata.   -H.J.M.