Hercules (crater) explained

Coordinates:46.82°N 39.21°W
Diameter:68.32 km
Depth:3.2 km
Colong:322
Eponym:Hercules

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.

Hercules is a crater of Eratosthenian age.[1]

The name Hercules was formally recognized by the IAU in 1935.

In the past this crater has been reported as the site of some transient lunar phenomenon.

Satellite craters

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 LatitudeLongitudeDiameter
B47.8° N36.6° E9 km
C42.7° N35.3° E9 km
D44.8° N39.7° E8 km
E45.7° N38.5° E9 km
F50.3° N41.7° E14 km
G46.4° N39.2° E14 km
H51.2° N40.9° E7 km
J44.1° N36.4° E8 km
K44.2° N36.9° E7 km

The following craters have been renamed by the IAU.

References

. Patrick Moore . 2001 . On the Moon . . 978-0-304-35469-6 .

. Antonín Rükl . 1990 . Atlas of the Moon . . 978-0-913135-17-4 .

. Thomas William Webb . 1962 . Celestial Objects for Common Telescopes . 6th revised . Dover . 978-0-486-20917-3 .

. Ewen Whitaker . 1999 . Mapping and Naming the Moon . Cambridge University Press . 978-0-521-62248-6 .

Notes and References

  1. https://pubs.er.usgs.gov/publication/pp1348 The geologic history of the Moon