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Perepelkin (lunar Crater)
Perepelkin is a lunar impact crater that is located just to the south of the similar crater Love. Attached to the exterior of its southern rim is the smaller Shirakatsi. Less than one crater diameter to the east-northeast is Lane, and to the west-southwest are the co-joined Danjon and D'Arsonval. The rim of this crater is relatively heavily eroded, and is similar in appearance to Love to the north. Along the western inner wall is an odd, pear-shaped crater that is probably a merge of two impacts. There is a short chain of small craters along the southwestern inner wall. The floor is pitted by tiny impacts, but is relatively level compared to the surrounding terrain. There is a small central peak at the midpoint that has a ridge extension to the southeast. The crater was named after Soviet astrophysicist Yevgeny Perepyolkin by the IAU The International Astronomical Union (IAU; french: link=yes, Union astronomique internationale, UAI) is a nongovernmental organisation wit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Apollo 17
Apollo 17 (December 7–19, 1972) was the final mission of NASA's Apollo program, the most recent time humans have set foot on the Moon or traveled beyond low Earth orbit. Commander Gene Cernan and Lunar Module Pilot Harrison Schmitt walked on the Moon, while Command Module Pilot Ronald Evans (astronaut), Ronald Evans orbited above. Schmitt was the only professional geologist to land on the Moon; he was selected in place of Joe Engle, as NASA had been under pressure to send a scientist to the Moon. The mission's heavy emphasis on science meant the inclusion of a number of new experiments, including a Fe, Fi, Fo, Fum, and Phooey, biological experiment containing five mice that was carried in the command module. Mission planners had two primary goals in deciding on the landing site: to sample Lunar highlands, lunar highland material older than that at Mare Imbrium and to investigate the possibility of relatively recent Volcano, volcanic activity. They therefore selected Taurus– ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yevgeny Perepyolkin
Yevgeny Yakovlevich Perepyolkin (russian: Евге́ний Я́ковлевич Перепёлкин; 4 March 1906 – 13 January 1938) was a Soviet Union, Soviet astronomer. He headed the astrophysics department of the Pulkovo Observatory until he was arrested on 11 May 1937 for Article 58 (RSFSR Penal Code), counter-revolutionary agitation. He was sent to a penal labour camp in Krasnoyarsk Krai, and was executed on 13 January 1938. He worked at the Pulkovo Observatory when he led the observation of the proper motion of stars with respect to extragalactic nebula. A Perepelkin (Martian crater), crater on Mars and Perepelkin (lunar crater), another on the Moon Gazetteer of Planetary Nomenclatur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Perepelkin Crater AS15-M-1444
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Perepelkin is an alternate transcription of the Russian name ''Perepyolkin''. It can refer to: * Yevgeny Perepyolkin, astronomer * Perepelkin (lunar crater) * Perepelkin (Martian crater) Perepelkin Crater is an impact crater in the Arcadia quadrangle of the planet Mars. It is located at 52.8°N latitude and 64.6°W longitude. It is 77 km in diameter. It was named after Russian astronomer Yevgeny Perepyolkin. Description ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lunar Craters
Lunar craters are impact craters on Earth's Moon. The Moon's surface has many craters, all of which were formed by impacts. The International Astronomical Union currently recognizes 9,137 craters, of which 1,675 have been dated. History The word ''crater'' was adopted from the Greek word for "vessel" (, a Greek vessel used to mix wine and water). Galileo built his first telescope in late 1609, and turned it to the Moon for the first time on November 30, 1609. He discovered that, contrary to general opinion at that time, the Moon was not a perfect sphere, but had both mountains and cup-like depressions. These were named craters by Johann Hieronymus Schröter (1791), extending its previous use with volcanoes. Robert Hooke in ''Micrographia'' (1665) proposed two hypotheses for lunar crater formation: one, that the craters were caused by projectile bombardment from space, the other, that they were the products of subterranean lunar volcanism. Scientific opinion as to the origin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Impact Crater
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 typically have raised rims and floors that are lower in elevation than the surrounding terrain. Lunar impact craters range from microscopic craters on lunar rocks returned by the Apollo Program and small, simple, bowl-shaped depressions in the lunar regolith to large, complex, multi-ringed impact basins. Meteor Crater is a well-known example of a small impact crater on Earth. Impact craters are the dominant geographic features on many solid Solar System objects including the Moon, Mercury, Callisto, Ganymede and most small moons and asteroids. On other planets and moons that experience more active surface geological processes, such as Earth, Venus, Europa, Io and Titan, visible impact craters are less common because they become eroded ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Love (crater)
Love is an impact crater on the far side of the Moon. It was named after British mathematician and geophysicist Augustus Edward Hough Love. It is located just to the north of the crater Perepelkin. Prager Prager (variants: Praeger, Preger) is a surname, which may refer to: Prager * David Prager (born 1977), American TV producer and blogger * Dennis Prager (born 1948), U.S. conservative radio talk show host, columnist and public speaker ** PragerU, ... nearly touches the northeastern rim. To the northwest is Bečvář. This is an eroded crater formation with several smaller craters along the rim. A chain of three small craters lies across the western rim and inner wall, and a crater cuts across the eastern rim. The inner walls have been worn and their features softened by impacts and possibly ejecta from other craters. The northern portion of the interior floor contains a considerable number of small and tiny craterlets that nearly form a continuous carpet in places. The southe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shirakatsi (crater)
Shirakatsi is an impact crater that is located on the Moon's far side. It is attached to the southern exterior rim of the larger crater Perepelkin, and overlies the northwestern rim of Dobrovol'skiy. This is a relatively fresh crater that has not been significantly eroded by subsequent impacts. The rim edge is well-defined, and there are some terrace structures along parts of the inner wall. The interior floor is uneven, particularly in the north, where it is covered by a complex of ridges. The only level section of floor is along the southern inner wall. The outer rampart of Shirakatsi has formed a mound of debris in the northwestern half of Dobrovol'skiy's interior. Views File:Dobrovolskiy Shirakatsi craters hrp148b.jpg, Oblique view of the collapsed wall between the craters (Apollo 17 panoramic camera) File:Dobrovol'skiy_Shirakatsi_AS15-M-1443.jpg, Oblique Apollo 15 Mapping camera image File:Dobrovolskiy Shirakatsi craters AS17-M-1722.jpg, Apollo 17 Apollo 17 (December ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lane (crater)
Lane is a lunar impact crater. It lies on the far side of the Moon, just to the west of the crater Ten Bruggencate. To the west of Lane is Perepelkin, and to the northwest lies Love. This crater is not heavily eroded, but the rim is somewhat disrupted at the northern and southern ends. To the south the rim has a prominent outward bulge that extends an extra 5–10 km. The interior is somewhat uneven, with low central ridges near the midpoint. The crater was named after American astrophysicist Jonathan Homer Lane by the IAU The International Astronomical Union (IAU; french: link=yes, Union astronomique internationale, UAI) is a nongovernmental organisation with the objective of advancing astronomy in all aspects, including promoting astronomical research, outreach ... in 1970. The crater was known as ''Crater 287'' prior to naming. Satellite craters By convention these features are identified on lunar maps by placing the letter on the side of the crater midpoint tha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Danjon (crater)
Danjon is a lunar impact crater on the far side of the Moon. It lies less than a crater diameter to the east-southeast of the larger crater Langemak. To the east-northeast of Danjon is the crater Perepelkin, and due south lies the walled plain Fermi. The northeastern rim of Danjon is overlain by the smaller crater D'Arsonval. Danjon overlies the southeastern corner of the slightly smaller satellite crater Danjon X. The outer rim of this crater is worn and eroded, particularly at the southern end, and the interior floor is irregular and marked by several small craterlets. The crater was named after French astronomer André Danjon by the IAU The International Astronomical Union (IAU; french: link=yes, Union astronomique internationale, UAI) is a nongovernmental organisation with the objective of advancing astronomy in all aspects, including promoting astronomical research, outreach ... in 1970. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
D'Arsonval (crater)
D'Arsonval is a small lunar impact crater on the far side of the Moon. It is situated across the northeastern rim of the older and larger crater Danjon. To the west of D'Arsonval is Perepelkin. The rim of D'Arsonval is somewhat worn and it has a low, elongated central ridge near the midpoint. The rim forms a saddle depression where it is joined with Danjon to the southwest. There is a cleft in the lunar surface beginning just to the east of the outer rim and running northward. The crater was named after French physicist Jacques A. d'Arsonval by the IAU in 1976. Gazetteer of Planetary Nomenclature, International Astronomical Union (IAU) Working Group for Planetary System Nomenclature (WGPSN) Satellite craters By convention these features are identified on lunar maps by placing the letter on the side of the crater midp ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
International Astronomical Union
The International Astronomical Union (IAU; french: link=yes, Union astronomique internationale, UAI) is a nongovernmental organisation with the objective of advancing astronomy in all aspects, including promoting astronomical research, outreach, education, and development through global cooperation. It was founded in 1919 and is based in Paris, France. The IAU is composed of individual members, who include both professional astronomers and junior scientists, and national members, such as professional associations, national societies, or academic institutions. Individual members are organised into divisions, committees, and working groups centered on particular subdisciplines, subjects, or initiatives. As of 2018, the Union had over 13,700 individual members, spanning 90 countries, and 82 national members. Among the key activities of the IAU is serving as a forum for scientific conferences. It sponsors nine annual symposia and holds a triannual General Assembly that sets policy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NASA
The National Aeronautics and Space Administration (NASA ) is an independent agency of the US federal government responsible for the civil space program, aeronautics research, and space research. NASA was established in 1958, succeeding the National Advisory Committee for Aeronautics (NACA), to give the U.S. space development effort a distinctly civilian orientation, emphasizing peaceful applications in space science. NASA has since led most American space exploration, including Project Mercury, Project Gemini, the 1968-1972 Apollo Moon landing missions, the Skylab space station, and the Space Shuttle. NASA supports the International Space Station and oversees the development of the Orion spacecraft and the Space Launch System for the crewed lunar Artemis program, Commercial Crew spacecraft, and the planned Lunar Gateway space station. The agency is also responsible for the Launch Services Program, which provides oversight of launch operations and countdown management f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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