Sosigenes (crater)

The crater (to the top right) area in a Selenochromatic format Image (Si)
Sosigenes
LRO image
Coordinates8°42′N 17°36′E / 8.7°N 17.6°E / 8.7; 17.6
Diameter17 km
Depth1.7 km
Colongitude342° at sunrise
EponymSosigenes of Alexandria

Sosigenes is a lunar impact crater on the west edge of Mare Tranquillitatis. Its diameter is 17 km. It was named after ancient Greek astronomer Sosigenes of Alexandria.[1] It lies to the east of the large walled plain Julius Caesar. The crater rim has a high albedo, making it relatively bright. It has a small central rise at the midpoint of the floor.

To the east on the mare is a formation of parallel rilles designated the Rimae Sosigenes. These follow a course to the north, and have a length of about 150 kilometers. The small, bowl-shaped crater Sosignes A lies across one of these rilles.

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