Cayley (crater)

Cayley
Lunar Orbiter 4 image
Coordinates4°00′N 15°06′E / 4.0°N 15.1°E / 4.0; 15.1
Diameter14 km
Depth3.1 km
Colongitude345° at sunrise
EponymArthur Cayley
The crater area in a Selenochromatic format Image (Si)
Oblique view from Apollo 15, showing Cayley (center), Ariadaeus (bright, left foreground), D'Arrest (left background), and Whewell (right)

Cayley is a small lunar impact crater that is located in a lava-flooded region to the west of Mare Tranquillitatis. It was named after the 19th-century English mathematician Arthur Cayley.[1] It lies to the northwest of the smaller crater De Morgan and the larger D'Arrest. West and slightly north of Cayley is Whewell, a crater of about the same dimensions. To the north is a linear rille designated Rima Ariadaeus, which follows a course to the east-southeast.

  1. ^ "Cayley (crater)". Gazetteer of Planetary Nomenclature. USGS Astrogeology Research Program.