Bečvář () is a

lunar Lunar most commonly means "of or relating to the Moon". Lunar may also refer to: Arts and entertainment * ''Lunar'' (series), a series of video games * "Lunar" (song), by David Guetta * "Lunar", a song by Priestess from the 2009 album ''Prior t ...

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 is located near the equator on the

far side of the Moon The far side of the Moon is the hemisphere of the Moon that is facing away from Earth, the opposite hemisphere is the near side. It always has the same surface oriented away from Earth because of synchronous rotation in the Moon's orbit. C ...

. It lies to the northeast of the crater

Necho Necho may refer to: * Necho I (died 664 BC), Egyptian pharaoh of the 26th Dynasty * Necho II (died 595 BC), Egyptian pharaoh of the 26th Dynasty * Necho (crater), a crater on the Moon See also

*Neco (1895–1977), Brazilian footballer *Neco ...

, within that feature's

ray system In planetary geology, a ray system comprises radial streaks of fine '' ejecta'' thrown out during the formation of an impact crater, looking somewhat like many thin spokes coming from the hub of a wheel. The rays may extend for lengths up to ...

. To the north-northeast is the crater

Gregory Gregory may refer to: People and fictional characters * Gregory (given name), including a list of people and fictional characters with the given name * Gregory (surname), a surname *Gregory (The Walking Dead), fictional character from the walkin ...

. This is a worn, eroded crater system with a few tiny craterlets lying across the floor and rim. A double-crater formation occupies the southwestern rim, with Bečvář Q forming the northwestern member of this pair. The crater Bečvář X is attached to the northern rim. The crater was named after Czechoslovakian astronomer

Antonín Bečvář Antonín Bečvář (; 10 June 1901 – 10 January 1965) was a Czechoslovak astronomer. Biography He was born and died in Stará Boleslav. Among his chief achievements is the foundation of the Skalnaté Pleso Observatory and the discovery of the ...

by the

IAU The International Astronomical Union (IAU; , UAI) is an international non-governmental organization (INGO) with the objective of advancing astronomy in all aspects, including promoting astronomical research, outreach, education, and developmen ...

in 1970. The crater was known as ''Crater 283'' prior to naming. Bečvář lies at the center of an unnamed, highly subdued, 200-km-diameter crater which was originally discovered during the

Apollo 16 Apollo 16 (April 1627, 1972) was the tenth human spaceflight, crewed mission in the United States Apollo program, Apollo space program, administered by NASA, and the fifth and penultimate to Moon landing, land on the Moon. It was the second o ...

mission and reported by

Farouk El-Baz Farouk El-Baz (, ''Pronunciation'': ) (born January 2, 1938) is an Egyptian American space scientist and geologist, who worked with NASA in the scientific exploration of the Moon and the planning of the Apollo program. He was a leading geologist ...

. The name ''Necho'' was proposed for the crater, but the name was eventually adopted for the small, bright-rayed

crater A crater is a landform consisting of a hole or depression (geology), depression on a planetary surface, usually caused either by an object hitting the surface, or by geological activity on the planet. A crater has classically been described ...

along the south margin of the unnamed crater.Apollo 16 Preliminary Science Report (NASA SP-315), 1972, Chapter 29, Part H: ''Discovery of Two Lunar Features'

/ref>

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 Bečvář.

References

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External links

Bečvář at The Moon Wiki
Impact craters on the Moon, Becvar {{Craters on the Moon: A–B