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Hohmann (crater)
Encyclopedia
Hohmann is a lunar
crater
that lies within the central basin of the Mare Orientale
formation, on the farside of the Moon
. It is located to the south of the crater Maunder
, and to the west of Kopff
crater. Due to its proximity to the western lunar limb, this area of the surface is occasionally visible during favorable libration
s. However the basin is viewed from the side, restricting the amount of detail that can be observed from Earth
.
The rim of this crater is circular and only marginally worn, with a pair of tiny impacts overlaying the southern edge. An outer rampart slopes down to the surrounding surface, and the interior wall slopes down more sharply to the crater floor. There is a terrace along the southeastern interior wall. Portions of the surroundings show evidence of ejecta deposits from Maunder to the north (as shown by a number of secondary impacts). Some of this ejecta may have been deposited within the interior of Hohmann.
The following craters have been renamed by the IAU
.
Moon
The Moon is Earth's only known natural satellite,There are a number of near-Earth asteroids including 3753 Cruithne that are co-orbital with Earth: their orbits bring them close to Earth for periods of time but then alter in the long term . These are quasi-satellites and not true moons. For more...
crater
Impact crater
In the broadest sense, the term impact crater can be applied to any depression, natural or manmade, resulting from the high velocity impact of a projectile with a larger body...
that lies within the central basin of the Mare Orientale
Mare Orientale
Mare Orientale is one of the most striking large scale lunar features, resembling a target ring bull's-eye. Located on the extreme western edge of the lunar nearside, this impact basin is difficult to see from an Earthbound perspective.Material from this basin was not sampled by the Apollo program...
formation, on the farside of the Moon
Moon
The Moon is Earth's only known natural satellite,There are a number of near-Earth asteroids including 3753 Cruithne that are co-orbital with Earth: their orbits bring them close to Earth for periods of time but then alter in the long term . These are quasi-satellites and not true moons. For more...
. It is located to the south of the crater Maunder
Maunder (lunar crater)
Maunder is a lunar impact crater that is located on the far side of the Moon, just beyond the western limb. This region is sometimes brought into view during favorable librations, but not much detail can be seen. The crater lies at the northern end of the Mare Orientale, within the ring of...
, and to the west of Kopff
Kopff (crater)
Kopff is a lunar crater that lies along the eastern edge of the inner Mare Orientale impact basin, on the western limb of the Moon. In this position the crater is seen from on edge from the Earth, and its visibility is affected by libration...
crater. Due to its proximity to the western lunar limb, this area of the surface is occasionally visible during favorable libration
Libration
In astronomy, libration is an oscillating motion of orbiting bodies relative to each other, notably including the motion of the Moon relative to Earth, or of Trojan asteroids relative to planets.-Lunar libration:...
s. However the basin is viewed from the side, restricting the amount of detail that can be observed from Earth
Earth
Earth is the third planet from the Sun, and the densest and fifth-largest of the eight planets in the Solar System. It is also the largest of the Solar System's four terrestrial planets...
.
The rim of this crater is circular and only marginally worn, with a pair of tiny impacts overlaying the southern edge. An outer rampart slopes down to the surrounding surface, and the interior wall slopes down more sharply to the crater floor. There is a terrace along the southeastern interior wall. Portions of the surroundings show evidence of ejecta deposits from Maunder to the north (as shown by a number of secondary impacts). Some of this ejecta may have been deposited within the interior of Hohmann.
Satellite craters
By convention these features are identified on lunar maps by placing the letter on the side of the crater mid-point that is closest to Hohmann.| Hohmann | Latitude | Longitude | Diameter |
|---|---|---|---|
| Q | 21.8° S | 98.1° W | 15 km |
The following craters have been renamed by the IAU
International Astronomical Union
The International Astronomical Union IAU is a collection of professional astronomers, at the Ph.D. level and beyond, active in professional research and education in astronomy...
.
- Hohmann T — See Il'inIl'in (crater)Il'in is a small lunar crater that is located on the far side of the Moon, just beyond the western limb. It lies in the western half of Mare Orientale, in the central basin amidst the lava-flooded lunar mare. To the east of this crater is the somewhat larger crater Hohmann.Il'in is circular and...
.