Neumayer (crater)
Encyclopedia
Neumayer is a lunar
impact crater
that lies near the southern limb of the Moon
. At this location the crater appears much foreshortened and can only be observed during favorable libration
s. It is attached to the southeastern rim of the slightly larger crater Helmholtz
. To the south-southwest is the crater Demonax
, and east-southeast is Hale
.
This is a worn crater formation with features that have been softened and rounded by a history of minor impacts. But the rim remains intact and has not been significantly reshaped or indented by notable craters. The only crater of note within the rim is a small craterlet on the floor near the northern rim. There are much smaller craters scattered across the nearly flat and level floor, but no significant ridges or a central peak. In short, this crater appears as just an old depression in the surface.
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...
impact 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 near the southern limb 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...
. At this location the crater appears much foreshortened and can only be observed 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. It is attached to the southeastern rim of the slightly larger crater Helmholtz
Helmholtz (lunar crater)
Helmholtz is a lunar impact crater that is located near the south-southeast limb of the Moon. Attached to the south-southeast rim of Helmholtz is the somewhat smaller crater Neumayer. The larger crater Boussingault is nearly attached to the west-southwestern rim.The outer rim of Helmholtz is worn...
. To the south-southwest is the crater Demonax
Demonax (crater)
Demonax is a lunar impact crater near the southern limb of the Moon. This location makes the crater difficult to observe due to foreshortening. The crater is also illuminated at a very low angle, when it is in the sunlit side. Demonax lies just to the north of the crater Scott, one of the south...
, and east-southeast is Hale
Hale (lunar crater)
Hale is a relatively young lunar impact crater that is located on the southern limb of the Moon. Over half the crater lies on the far side of the Moon, and from the Earth this formation is viewed from the side. Thus the crater must be viewed from orbit in order to discern much detail. The nearest...
.
This is a worn crater formation with features that have been softened and rounded by a history of minor impacts. But the rim remains intact and has not been significantly reshaped or indented by notable craters. The only crater of note within the rim is a small craterlet on the floor near the northern rim. There are much smaller craters scattered across the nearly flat and level floor, but no significant ridges or a central peak. In short, this crater appears as just an old depression in the surface.
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 Neumayer.| Neumayer | Latitude | Longitude | Diameter |
|---|---|---|---|
| A | 75.0° S | 73.6° E | 31 km |
| M | 71.6° S | 78.5° E | 31 km |
| N | 70.4° S | 78.7° E | 36 km |
| P | 70.6° S | 86.0° E | 22 km |