| Apollo 12 photograph taken from orbit showing the Davy crater chain, a string of craters extending about 50 km across the floor of crater Davy Y. The large crater at the top of the image is Davy crater, 34 km in diameter and centered at 11.8 S, 8.1 W. The crater chain has been hypothesized to be a volcanic feature, a string of secondary impact craters, or craters due to multiple impacts from a Shoemaker-Levy 9 type object. North is to the right. (Apollo 12, AS12-H-51-7485) |