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Chevallier (crater)
Chevallier is a lunar impact crater that is located in the northeastern part of the Moon's near side, about a crater diameter east-southeast of the prominent crater Atlas. To the south-southeast of Chevallier is the flooded crater Shuckburgh. This formation is little more than a disintegrated crater rim protruding upward slightly from a lava-flooded surface. All that survives of this feature is a few arcing sections of low ridges in the surface. The most prominent section of rim is along the northeast where it has merged with a smaller double-crater formation which has also been flooded. The interior floor has been resurfaced by the flows of lava, which are joined to the nearby flooded terrain. In the eastern half of the floor is Chevallier B, a small, partly flooded crater. Just to the west of the rim of Chevallier is Atlas A, a sharp-rimmed, bowl-shaped crater. Satellite craters By convention these features are identified on lunar maps by placing the letter on the side of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lunar Orbiter 4
Lunar Orbiter 4 was a robotic U.S. spacecraft, part of the Lunar Orbiter program, Lunar Orbiter Program, designed to orbit the Moon, after the three previous orbiters had completed the required needs for Project Apollo, Apollo mapping and site selection. It was given a more general objective, to "perform a broad systematic photographic survey of lunar surface features in order to increase the scientific knowledge of their nature, origin, and processes, and to serve as a basis for selecting sites for more detailed scientific study by subsequent orbital and landing missions". It was also equipped to collect selenodetic, radiation intensity, and micrometeoroid impact data. Mission Summary The spacecraft was placed in a Free-return trajectory, cislunar trajectory and injected into an elliptical near polar high lunar orbit for data acquisition. The orbit was with an inclination of 85.5 degrees and a period of 12 hours. After initial photography on May 11, 1967 problems started occu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Temple Chevallier
Temple Chevallier FRAS (19 October 1794 in Badingham, Suffolk – 4 November 1873 in Harrow Weald) was a British clergyman, astronomer, and mathematician. Between 1847 and 1849, he made important observations regarding sunspots. Chevallier has been called "a remarkable Victorian polymath" (Kenworthy, 1994). Not only did he write many papers on astronomy and physics, he also published a translation of the Apostolic Fathers that went into a second edition, and translated the works of Clement of Alexandria, Polycarp and Ignatius of Antioch. Life Son of Rev. Temple Fiske Chevallier, rector of Badingham, Suffolk, of the Chevallier family of Aspall Hall, Chevallier was educated at Pembroke College, Cambridge, and was ordained a priest in 1820. He became a Fellow of Pembroke College in 1819. He was a Fellow and Tutor of Catharine Hall (St Catharine's College, Cambridge) in 1820 and Hulsean lecturer in Divinity from 1826 to 1827. He was curate and then vicar of St Andrew the Gr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chevallier Crater
Chevallier is a French surname. The word originated during the Middle Ages when it denoted a knight. There are multiple variations of this name, including Chevalier. Notable people with the surname include: *Alain Chevallier (c. 1948–2016), French motorcycle designer and brother of Olivier Chevallier * Claire Chevallier (born 1969), Franco-Belgian classical pianist *Gabriel Chevallier (1895–1969), French novelist *Jean-Baptiste-Alphonse Chevallier (1793-1879), French pharmacist-chemist *Jean-Jacques Chevallier (1900–1983), French historian *John Barrington Chevallier (1857–1940), British schoolmaster who played in four FA Cup finals, on the winning team in 1879 and 1882 *Olivier Chevallier (1949–1980), French Grand Prix motorcycle racer *Temple Chevallier (1794–1873), British professor of mathematics and astronomy *Chevalliers of Aspall Hall, a family resident at Aspall, Suffolk, producers of Aspall Cyder See also *Chevallier (crater), Moon crater named after Temple Ch ... [...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] |
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 Australia). The Moon is a planetary-mass object with a differentiated rocky body, making it a satellite planet under the geophysical definitions of the term and larger than all known dwarf planets of the Solar System. It lacks any significant atmosphere, hydrosphere, or magnetic field. Its surface gravity is about one-sixth of Earth's at , with Jupiter's moon Io being the only satellite in the Solar System known to have a higher surface gravity and density. The Moon orbits Earth at an average distance of , or about 30 times Earth's diameter. Its gravitational influence is the main driver of Earth's tides and very slowly lengthens Earth's day. The Moon's orbit around Earth has a sidereal period of 27.3 days. During each synodic period ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atlas (crater)
Atlas is a prominent lunar impact crater that is located in the northeast part of the Moon, to the southeast of Mare Frigoris. Just to the west is the slightly smaller but still prominent crater Hercules. Northeast of Atlas is the large crater Endymion. The inner wall of Atlas is multiply terraced and the edge slumped, forming a sharp-edged lip. This is a floor-fractured crater with a rough and hilly interior that has a lighter albedo than the surroundings. Floor-fractures are usually created as a result of volcanic modifications. There are two dark patches along the inner edge of the walls; one along the north edge and another besides the southeast edges. A system of slender clefts named the Rimae Atlas crosses the crater floor, and were created by volcanism. Along the north and northeastern inner sides are a handful of dark-halo craters, most likely due to eruptions. Around the midpoint is a cluster of low central hills arranged in a circular formation. Atlas is a crater o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shuckburgh (crater)
Shuckburgh is a lunar impact crater that is located in the northeastern part of the Moon's near side, named after Sir George Augustus William Shuckburgh-Evelyn. It lies south-southeast of the flooded crater Chevallier and northwest of Hooke, roughly midway between these two formations. To the northeast is the Lacus Temporis plain. The interior floor of this crater has been resurfaced with lava, leaving a level plain surrounded by the worn and rounded outer rim. This floor is nearly featureless, being marked only by a few tiny craterlets. The edge has an outward protrusion along the eastern side, with a terrace Terrace may refer to: Landforms and construction * Fluvial terrace, a natural, flat surface that borders and lies above the floodplain of a stream or river * Terrace, a street suffix * Terrace, the portion of a lot between the public sidewalk a ... forming a shelf along this side. There is a smaller outward protrusion in the north rim which connects it with the small ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lava
Lava is molten or partially molten rock (magma) that has been expelled from the interior of a terrestrial planet (such as Earth) or a moon onto its surface. Lava may be erupted at a volcano or through a fracture in the crust, on land or underwater, usually at temperatures from . The volcanic rock resulting from subsequent cooling is also often called ''lava''. A lava flow is an outpouring of lava during an effusive eruption. (An explosive eruption, by contrast, produces a mixture of volcanic ash and other fragments called tephra, not lava flows.) The viscosity of most lava is about that of ketchup, roughly 10,000 to 100,000 times that of water. Even so, lava can flow great distances before cooling causes it to solidify, because lava exposed to air quickly develops a solid crust that insulates the remaining liquid lava, helping to keep it hot and inviscid enough to continue flowing. The word ''lava'' comes from Italian and is probably derived from the Latin word ''labes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Craters On The Moon
This is a list of named lunar craters. The large majority of these features are impact craters. The Planetary nomenclature, crater nomenclature is governed by the International Astronomical Union, and this listing only includes features that are officially recognized by that scientific society. __NOTOC__ Craters The lunar craters are listed in the following subsections. Where a formation has associated wikt:satellite, satellite craters, these are detailed on the main crater description pages. Catalog Lunar craters are listed alphabetically on the following partial lists: * List of craters on the Moon: A–B * List of craters on the Moon: C–F * List of craters on the Moon: G–K * List of craters on the Moon: L–N * List of craters on the Moon: O–Q * List of craters on the Moon: R–S * List of craters on the Moon: T–Z Prominent craters Locations and diameters of some prominent craters on the near side of the Moon: File:Location of albategnius crater.jpg, Fil ... [...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] |
United States Geological Survey
The United States Geological Survey (USGS), formerly simply known as the Geological Survey, is a scientific agency of the United States government. The scientists of the USGS study the landscape of the United States, its natural resources, and the natural hazards that threaten it. The organization's work spans the disciplines of biology, geography, geology, and hydrology. The USGS is a fact-finding research organization with no regulatory responsibility. The agency was founded on March 3, 1879. The USGS is a bureau of the United States Department of the Interior; it is that department's sole scientific agency. The USGS employs approximately 8,670 people and is headquartered in Reston, Virginia. The USGS also has major offices near Lakewood, Colorado, at the Denver Federal Center, and Menlo Park, California. The current motto of the USGS, in use since August 1997, is "science for a changing world". The agency's previous slogan, adopted on the occasion of its hundredt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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