Erro is a lunar

impact crater An impact crater is a depression (geology), depression in the surface of a solid astronomical body formed by the hypervelocity impact event, impact of a smaller object. In contrast to volcanic craters, which result from explosion or internal c ...

that lies beyond the eastern limb of the

Moon The Moon is Earth's only natural satellite. It Orbit of the Moon, orbits around Earth at Lunar distance, an average distance of (; about 30 times Earth diameter, Earth's diameter). The Moon rotation, rotates, with a rotation period (lunar ...

, on the far side as seen from the

Earth Earth is the third planet from the Sun and the only astronomical object known to Planetary habitability, harbor life. This is enabled by Earth being an ocean world, the only one in the Solar System sustaining liquid surface water. Almost all ...

. It lies along the eastern fringes of the uneven plain that joins

Mare Marginis Mare Marginis (Latin for 'Sea of the Edge'); ) 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 358 km. This mare differs from most ...

to the northwest with Mare Smythii to the west-southwest. This part of the surface is sometimes brought into sight of observers on the

due to

libration In lunar astronomy, libration is the cyclic variation in the apparent position of the Moon that is perceived by observers on the Earth and caused by changes between the orbital and rotational planes of the moon. It causes an observer to see ...

. 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. The crater is named after the Mexican astronomer Luis Enrique Erro. 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 midpoint that is closest to Erro.

References

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External links

LTO-64D2 Erro
— L&PI

topographic map In modern mapping, a topographic map or topographic sheet is a type of map characterized by large- scale detail and quantitative representation of relief features, usually using contour lines (connecting points of equal elevation), but histori ...

Erro at The Moon Wiki
{{Authority control Impact craters on the Moon