The Dirichlet–Jackson Basin is a

pre-Nectarian The pre-Nectarian period of the lunar geologic timescale runs from 4.533 billion years ago (the time of the initial formation of the Moon) to 3.920 billion years ago, when the Nectaris Basin was formed by a large impact. It is followed by the Nect ...

impact basin An impact crater is a circular depression in the surface of a solid astronomical object formed by the hypervelocity impact of a smaller object. In contrast to volcanic craters, which result from explosion or internal collapse, impact craters ...

on the far side of the

Moon The Moon is Earth's only natural satellite. It is the fifth largest satellite in the Solar System and the largest and most massive relative to its parent planet, with a diameter about one-quarter that of Earth (comparable to the width of ...

. It is named after the craters

Dirichlet Johann Peter Gustav Lejeune Dirichlet (; 13 February 1805 – 5 May 1859) was a German mathematician who made deep contributions to number theory (including creating the field of analytic number theory), and to the theory of Fourier series and ...

(on the southeast margin) and

Jackson Jackson may refer to: People and fictional characters * Jackson (name), including a list of people and fictional characters with the surname or given name Places Australia * Jackson, Queensland, a town in the Maranoa Region * Jackson North, Q ...

(northwest of the basin). It lies to the north of the similar-sized basin Korolev. The basin is not obvious on the lunar surface due to being obscured by subsequent impacts. It was confirmed by topographic mapping by the

Clementine A clementine (''Citrus × clementina'') is a tangor, a citrus fruit hybrid between a willowleaf mandarin orange ( ''C.'' × ''deliciosa'') and a sweet orange (''C. × sinensis''), named in honor of Clément Rodier, a French missionary who fir ...

spacecraft in 2000. The existence of the basin was confirmed by the

GRAIL The Gravity Recovery and Interior Laboratory (GRAIL) was an American lunar science mission in NASA's Discovery Program which used high-quality gravitational field mapping of the Moon to determine its interior structure. The two small spacecraf ...

spacecraft. Craters within the basin include

Raimond Raimond is both a masculine given name and a surname. Notable people with the name include: Given name *Raimond Aumann (born 1963), German footballer *Raimond Beccarie de Pavie, Seigneur de Fourquevaux (1508–1574), French soldier, politician a ...

, Bredikhin,

Mitra ''Mitra'' ( Proto-Indo-Iranian: ''*mitrás'') is the name of an Indo-Iranian divinity from which the names and some characteristics of Rigvedic Mitrá and Avestan Mithra derive. The names (and occasionally also some characteristics) of these t ...

, and Henyey (adjacent to Dirichlet), as well as many satellite craters. Due south of the basin is Engel'gardt (and the

Selenean summit Selenean summit refers to the "highest" point on the Moon, notionally similar to Mount Everest on the Earth. At some 10,786 m (35,387 ft) above the lunar mean, it is nearly twenty percent 'taller' than Earth's relative highest point, Everest. T ...

). To the southwest are Lebedinskiy and Zhukovskiy, and McMath is to the northwest. To the northeast is Mach, and to the southeast is Tsander. File:Dirichlet-Jackson basin topo.jpg, Topographic map File:Dirichlet-Jackson basin GRAIL gravity.jpg, Gravity map based on

External links

KAGUYA Taking Around 'Jackson'
HD video of

SELENE In ancient Greek mythology and religion, Selene (; grc-gre, Σελήνη , meaning "Moon"''A Greek–English Lexicon's.v. σελήνη) is the goddess and the personification of the Moon. Also known as Mene, she is traditionally the daughter o ...

crossing the basin and Jackson crater

References

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