Polybius (crater)

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Polybius
Polybius crater 4084 h1.jpg
Coordinates 22°24′S 25°36′E / 22.4°S 25.6°E / -22.4; 25.6Coordinates: 22°24′S 25°36′E / 22.4°S 25.6°E / -22.4; 25.6
Diameter 41 km
Depth 2.1 km
Colongitude 335° at sunrise
Eponym Polybius
Location of Polybius

Polybius is a lunar impact crater in the southeast part of the Moon. It is located to the south-southeast of the larger crater Catharina, in the area framed by the Rupes Altai scarp. Some distance to the northeast is the Mare Nectaris, with the flooded craters Beaumont and Fracastorius.

The crater rim of Polybius appears slightly distended in the northeast, and has a cut through the northern wall. But the wall is otherwise moderately intact with only minor erosion. The interior floor is flat and almost featureless, with no central rise. To the south and east, a ray from Tycho cuts across the bowl-shaped Polybius A and Polybius B craterlets.

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 Polybius.

Polybius Latitude Longitude Diameter
A 23.0° S 28.0° E 17 km
B 25.5° S 25.5° E 12 km
C 22.0° S 23.6° E 29 km
D 26.9° S 27.9° E 9 km
E 24.4° S 26.2° E 9 km
F 22.2° S 23.0° E 21 km
G 22.5° S 22.7° E 5 km
H 21.1° S 22.7° E 8 km
J 22.7° S 23.5° E 9 km
K 24.3° S 25.3° E 14 km
L 22.0° S 28.2° E 7 km
M 21.3° S 22.1° E 6 km
N 23.4° S 26.8° E 13 km
P 21.5° S 22.9° E 17 km
Q 25.1° S 27.5° E 6 km
R 25.6° S 27.3° E 7 km
T 26.1° S 25.5° E 12 km
V 25.2° S 29.1° E 6 km

References[edit]