December 1968 - This oblique view of the lunar surface was taken from the Apollo 8 spacecraft looking southward toward Goclenius and other large craters in the Sea of Fertility. Goclenius, the crater in the foreground with a rille-broken flat floor, is about 70 kilometers (45 statute miles) in diameter. One rille, approximately horizontal in this view, crosses both crater rims and the central peak, and, on adjoining Apollo 8 photographs, can be traced several kilometers across the mare surface beyond the high crater wall. In the background, the two large craters with smooth floors are Colombo A (left) and Magelhaens. Magelhaens A, the crater with the irregular floor, is about 35 kilometers (20 statute miles) in diameter.