(English version, Wikipedia copyright)

Harpalus is a young lunar impact crater that lies on the Mare Frigoris, at the eastern edge of the Sinus Roris. To the southeast at the edge of the mare is the small Foucault crater, and to the northwest on the opposite edge is the walled-plain named South.

The rim of Harpalus is sharp-edged with little sign of wear or erosion. It is surrounded by an outer rampart of ejecta, most notably toward the north, and is at the center of a small ray system. The wall is not perfectly circular, and has a few outward notches and protrusions, especially along the eastern half.

The inner surface is terraced, and flows down to the floor. The interior wall is the least wide along the northern face, making the floor slightly offset in that direction. Near the mid-point is a system of low central ridges.

This was the crater chosen as a rocket landing site in the 1950s science fiction film Destination Moon. It was chosen by the artist Chesley Bonestell as it had a relatively high latitude and the Earth could be realistically displayed at a low altitude during camera shots. However the resulting clay model of the crater was given some mud cracks across the floor, an addition to which Bonestall objected.