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Montes Rook
Montes Rook is a ring-shaped mountain range that lies along the western limb of the Moon, crossing over to the Far side (Moon), far side. It completely encircles the Mare Orientale, and forms part of a massive impact basin feature. This range in turn is encircled by the larger Montes Cordillera, which is separated from the Montes Rook by a rugged, ring-shaped plain. The Montes Rook is actually a double-ring formation, sometimes divided into the outer Rook and the inner Rook, having respective diameters of 620 km and 480 km. The material excavated to form Montes Rook came from a mafic layer below an anorthositic zone. Many of the peaks in this ring are composed of pure anorthosite. Sections of the gap between these sub-ranges contain long valleys filled in places with basaltic lava, forming small lunar maria. One such section along the northeastern part of the range has been named Lacus Veris. The selenographic coordinates of this range are 20.6° S, 82.5° W, and the di ... [...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 m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lawrence Rooke
Lawrence Rooke (also Laurence) (1622–26 June 1662) was an English astronomer and mathematician. He was also one of the founders of the Royal Society, although he died as it was being formally constituted. Life He was born in Deptford, and was a great-nephew through his mother of Lancelot Andrewes.C. A. Ronan, ''Laurence Rooke (1622–1662)'', Notes and Records of the Royal Society of London, Vol. 15, (Jul., 1960), pp. 113–118. He was educated at Eton College and King's College, Cambridge, where he graduated M.A. in 1647. He became a fellow commoner at Wadham College, Oxford in 1650, having dropped out of academia for a period because of bad health.''Concise Dictionary of National Biography'' Andrew Pyle (editor), ''Dictionary of Seventeenth Century British Philosophers'' (2000), p. 691. At Wadham he worked closely with John Wilkins and Seth Ward. He became Professor of Astronomy at Gresham College in 1652, and then Professor of Geometry there, in 1657, an app ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lowell (lunar Crater)
Lowell is a lunar impact crater that lies just beyond the western limb of the Moon. It is embedded within the northwestern part of the Montes Rook mountain ring of the Mare Orientale impact basin. This portion of the Moon's far side is sometimes brought into view of the Earth during periods of favorable libration In lunar astronomy, libration is the wagging or wavering of the Moon perceived by Earth-bound observers and caused by changes in their perspective. It permits an observer to see slightly different hemispheres of the surface at different tim ... and lighting, although it is only seen from the edge. The crater is circular in outline, with a well-defined edge. A small crater lies along the edge of the eastern rim. The inner wall is wider along the western side, and there are some terrace structures. In the middle of the crater is a central peak on the interior floor. Satellite craters By convention these features are identified on lunar maps by placing the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Libration
In lunar astronomy, libration is the wagging or wavering of the Moon perceived by Earth-bound observers and caused by changes in their perspective. It permits an observer to see slightly different hemispheres of the surface at different times. It is similar in both cause and effect to the changes in the Moon's apparent size due to changes in distance. It is caused by three mechanisms detailed below, two of which cause a relatively tiny physical libration via tidal forces exerted by the Earth. Such true librations are known as well for other moons with locked rotation. The quite different phenomenon of a trojan asteroid's movement has been called ''Trojan libration''; and ''Trojan libration point'' means Lagrangian point. Lunar libration The Moon keeps one hemisphere of itself facing the Earth, due to tidal locking. Therefore, the first view of the far side of the Moon was not possible until the Soviet probe Luna 3 reached the Moon on October 7, 1959, and further lunar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fryxell (crater)
Fryxell is a small lunar impact crater that lies amidst the western inner ring of the Montes Rook. It is named for Roald H. Fryxell, an American geologist. It was previously designated Golitsyn B, a satellite of Golitsyn, before being assigned a name by the IAU. This crater is located on the Moon's far side, at the extreme edge of the region of the surface sometimes brought into view of the Earth due to libration. Even under rare conditions of favorable lighting and libration, this area would only be seen from the side amidst a rugged range of mountains. Thus this crater is best observed from orbit. This formation is roughly circular, but with a slightly polygonal appearance. It is a bowl-shaped formation with a darker interior floor that is relatively featureless. The inner walls of Fryxell have a higher albedo Albedo (; ) is the measure of the diffuse reflection of solar radiation out of the total solar radiation and measured on a scale from 0, corresponding to a black b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shuleykin (crater) Shuleykin is a small lunar impact crater that lies to the south of Mare Orientale, within the ring-shaped Montes Rook. It is located just on the far side of the Moon, but this area can be viewed from the Earth during periods of favorable libration In lunar astronomy, libration is the wagging or wavering of the Moon perceived by Earth-bound observers and caused by changes in their perspective. It permits an observer to see slightly different hemispheres of the surface at different tim ... and lighting, although it can only be seen from the edge. This crater was formed following the Orientale impact event, and so is younger. It has a circular, sharp-edged rim and inner walls that slope down to the small interior floor. It has not been noticeably eroded by subsequent impacts. References * * * * * * * * * * * * {{refend Impact craters on the Moon ... [...More Info...] |
