Erro (crater)
Encyclopedia
Erro is a lunar
crater
that lies beyond the eastern limb of the Moon
, on the far side as seen from the Earth
. It lies along the eastern fringes of the uneven plain that joins Mare Marginis
to the northwest with Mare Smythii
to the west-southwest. This part of the surface is sometimes brought into sight of observers on the Earth
due to libration
. However even at such times not much detail can be seen, as the surface is viewed from the edge.
Nearby craters of note include Babcock
to the west-southwest, Saenger
to the east-southeast, and Dreyer
to the north-northwest.
This crater has a low, broken rim that only projects a small distance above the surface. The somewhat uneven surrounding plains have intruded into the interior of this crater, leaving a level, nearly featureless floor. The most intact sections of the rim lie along the northern and northeastern sides. The satellite crater Erro V is attached to the outer rim to the northwest, and there is a smaller crater along the southern rim. There is a small craterlet in the northeastern part of the interior floor.
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 beyond the eastern 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...
, on the far side as seen from the 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...
. It lies along the eastern fringes of the uneven plain that joins Mare Marginis
Mare Marginis
Mare Marginis is a lunar mare that lies on the very edge of the lunar nearside. The selenographic coordinates of this feature are 13.3° N, 86.1° E, and the diameter is 420 km. The name is Latin for "Sea of the Edge"....
to the northwest with Mare Smythii
Mare Smythii
Mare Smythii is a lunar mare located along the equator on the easternmost edge of the lunar near side. The Smythii basin where the mare is located is of the Pre-Nectarian epoch, while the surrounding features are of the Nectarian system...
to the west-southwest. This part of the surface is sometimes brought into sight of observers on the 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...
due to 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:...
. However even at such times not much detail can be seen, as the surface is viewed from the edge.
Nearby craters of note include Babcock
Babcock (crater)
Babcock is a lunar crater that is located on the far side of the Moon. It lies on the northeastern edge of Mare Smythii, to the southeast of Mare Marginis. To the south of Babcock is the crater Purkynĕ, and to the east-northeast lies Erro...
to the west-southwest, Saenger
Saenger (crater)
Saenger is an ancient lunar crater that lies on the far side of the Moon, just beyond the eastern limb. To the west-northwest is the crater Erro, and due north lies Moiseev. To the northeast is Al-Khwarizmi....
to the east-southeast, and Dreyer
Dreyer (crater)
Dreyer is the remnant of a lunar crater on the far side of the Moon. It is located along the eastern edge of the Mare Marginis, about midway between the craters Ginzel to the north and Erro to the south-southeast....
to the north-northwest.
This crater has a low, broken rim that only projects a small distance above the surface. The somewhat uneven surrounding plains have intruded into the interior of this crater, leaving a level, nearly featureless floor. The most intact sections of the rim lie along the northern and northeastern sides. The satellite crater Erro V is attached to the outer rim to the northwest, and there is a smaller crater along the southern rim. There is a small craterlet in the northeastern part of the interior floor.
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 Erro.| Erro | Latitude | Longitude | Diameter |
|---|---|---|---|
| D | 6.8° N | 100.5° E | 30 km |
| J | 4.6° N | 99.4° E | 15 km |
| K | 3.8° N | 99.6° E | 17 km |
| T | 5.6° N | 96.9° E | 16 km |
| V | 6.3° N | 97.8° E | 18 km |