Plinius (crater)

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Plinius (crater)
Plinius crater 4085 h2.jpg
Coordinates 15°24′N 23°42′E / 15.4°N 23.7°E / 15.4; 23.7Coordinates: 15°24′N 23°42′E / 15.4°N 23.7°E / 15.4; 23.7
Diameter 43 km
Depth 4.3 km
Colongitude 336° at sunrise
Eponym Gaius Secundus
Oblique view from Apollo 17 facing south, and showing both Plinius crater and Plinius Rilles

Plinius is a prominent lunar impact crater on the border between Mare Serenitatis to the north and Mare Tranquilitatis to the south. South-southeast of Plinius is the crater Ross, and to the northeast is Dawes. Just to the north is a system of rilles named the Rimae Plinius. At the northwest edge of the rille is the Promontorium Archeruia, a cape off the western rim that encloses the Mare Serenitatis.

The sharp rim of Plinius is slightly oval in form, with a terraced inner wall, and an irregular outer rampart. It lacks a visible ray system. The crater floor is hilly, and in the middle is an irregular central peak that has the appearance of a double crater formation under certain angles of illumination. There is a cleft feature attached to the northern side of the peak. The eastern half of the floor is much more smooth and level than the hummocky west, and this section forms a crescent shape about the central peak.

Satellite craters[edit]

By convention these features are identified on lunar maps by placing the letter on the side of the crater midpoint that is closest to Plinius.

Plinius Latitude Longitude Diameter
A 13.0° N 24.2° E 4 km
B 14.1° N 26.2° E 5 km

References[edit]