Hercules (crater)

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Hercules crater 4079 h2 4079 h3.jpg
Mosaic of Lunar Orbiter 4 images
Coordinates 46°42′N 39°06′E / 46.7°N 39.1°E / 46.7; 39.1Coordinates: 46°42′N 39°06′E / 46.7°N 39.1°E / 46.7; 39.1
Diameter 69 km
Depth 3.2 km
Colongitude 322° at sunrise
Eponym Hercules
Oblique view of Atlas and Hercules from Apollo 16
Atlas (upper right) and Hercules (lower left) Lunar craters
Atlas and Hercules at center, near the terminator as viewed from Earth

Hercules is a prominent crater located in the northeast part of the Moon, to the west of the crater Atlas. It lies along the east edge of a southward extension in the Mare Frigoris. To the west across the mare is Bürg. To the south is the ruined crater Williams.

The interior walls of Hercules have multiple terraces, and there is a small outer rampart. The crater floor has been flooded by lava in the past, and contains several areas of low albedo. The central peak has been buried, leaving only a low hill near the midpoint. The satellite crater Hercules G is located prominently just to the south of the center. The small crater Hercules E lies along the southern rim of Hercules.

In the past this crater has been reported as the site of some transient lunar phenomenon.[according to whom?]

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 Hercules.

Hercules Latitude Longitude Diameter
B 47.8° N 36.6° E 9 km
C 42.7° N 35.3° E 9 km
D 44.8° N 39.7° E 8 km
E 45.7° N 38.5° E 9 km
F 50.3° N 41.7° E 14 km
G 46.4° N 39.2° E 14 km
H 51.2° N 40.9° E 7 km
J 44.1° N 36.4° E 8 km
K 44.2° N 36.9° E 7 km

The following craters have been renamed by the IAU.