|
Hogg (crater)
Hogg is a lunar impact crater on the Moon's far side. It lies less than a crater diameter to the south-southwest of the somewhat larger Kidinnu Kidinnu (also ''Kidunnu''; possibly fl. 4th century BC; possibly died 14 August 330 BC) was a Chaldean astronomer and mathematician. Strabo of Amaseia called him Kidenas, Pliny the Elder Cidenas, and Vettius Valens Kidynas. Some cuneifor .... This is an old, worn feature with an outer rim that has been eroded to the point where it just forms a rounded crest about the interior. Small craterlets lie along the southern and western rim. The interior has some slight clefts in the surface and a low, crater-like depression in the southern half. 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 Hogg. References * * * * * * * * * * * * {{DEFAULTSORT:Hogg (Crater) Impact craters on the Moon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lunar Orbiter 5
Lunar Orbiter 5, the last of the "Lunar Orbiter series", was designed to take additional Apollo and Surveyor landing site photography and to take broad survey images of unphotographed parts of the Moon's far side. It was also equipped to collect selenodetic, radiation intensity, and micrometeoroid impact data and was used to evaluate the Manned Space Flight Network tracking stations and Apollo Orbit Determination Program. Mission Summary The spacecraft was placed in a cislunar trajectory and on August 5, 1967 was injected into an elliptical near polar lunar orbit with an inclination of 85 degrees and a period of 8 hours 30 minutes. On August 7 the perilune was lowered to , and on August 9 the orbit was lowered to a , 3 hour 11 minute period. The spacecraft acquired photographic data from August 6 to 18, 1967, and readout occurred until August 27, 1967. A total of 633 high resolution and 211 medium resolution frames at resolution down to were acquired, bringing the cumulative ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arthur Robert Hogg
Arthur Robert Hogg (25 November 1903 – 31 March 1966) was an Australian physicist and astronomer. He was born in Melbourne, Victoria, was educated at the Royal Melbourne Institute of Technology and at the University of Melbourne where he earned his B.Sc. in 1923 and M.Sc. in 1925. In 1927 he began working at the Broken Hill Associated Smelters in Port Pirie, South Australia, becoming the assistant supervisor of research, and he remained there until 1929. He then joined the Mount Stromlo Observatory, then called the Commonwealth Solar Observatory, as an assistant and he remained associated with the observatory until his death in 1966. At Mount Stromlo, he took up the study of electrical phenomena in the atmosphere, including ionization in the lower atmosphere. He then transitioned into the study of cosmic rays. In 1933 he was married to Irene Doris Tyson (known as Yandell). The couple had two sons, Robert Ernest Tremayne born in 1936 and Garth Richard born in 1940 and a daughte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frank Scott Hogg
Frank Scott Hogg (July 26, 1904 – January 1, 1951) was a Canadian astronomer. Hogg was born in Preston, Ontario to Dr. James Scott Hogg and Ida Barberon. After earning an undergraduate degree from the University of Toronto, Hogg received the second doctorate in astronomy awarded at Harvard University in 1929 where he pioneered in the study of spectrophotometry of stars and of spectra of comets. His supervisor there was Cecilia Payne-Gaposchkin. During World War II, he developed a two-star sextant for air navigation. He was the head of the Department of Astronomy at the University of Toronto and director of the David Dunlap Observatory from 1946 until his death. During this time he pursued the observatory's major research program to study the motions of faint stars in the line of sight. He was married to fellow astronomer Helen Sawyer Hogg from 1930 until his death from a heart attack in 1951. The crater Hogg on the moon is co-named for him and Arthur Robert Hogg Arthur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hogg Crater AS16-M-3021 ASU
{{disambig ...
Hogg may refer to: Persons with the surname Hogg: * Hogg (surname) In fiction: *Boss Hogg from the television show ''Dukes of Hazzard'', with many fictional Hogg relatives *Wernham Hogg, the fictional paper company from the British TV series ''The Office'' * ''Hogg'' (novel), a novel by Samuel R. Delany Other: *Head on, gilled and gutted, a term used in the fishing industry. *Hogg Robinson Group (HRG), an international company specializing in corporate services *Hogg (crater), on the Moon * Hogg, a young sheep of either sex from about 9 to 18 months of age (until it cuts two teeth). *Jim Hogg County, Texas Jim Hogg County is a county located in the U.S. state of Texas. As of the 2020 census, the population was 4,838. Its county seat is Hebbronville. The county is named for James Stephen Hogg, the governor of Texas from 1891 to 1895. History J ... [...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] |
Far Side (Moon)
The far side of the Moon is the lunar hemisphere that always faces away from Earth, opposite to the near side, because of synchronous rotation in the Moon's orbit. Compared to the near side, the far side's terrain is rugged, with a multitude of impact craters and relatively few flat and dark lunar maria ("seas"), giving it an appearance closer to other barren places in the Solar System such as Mercury and Callisto. It has one of the largest craters in the Solar System, the South Pole–Aitken basin. The hemisphere is sometimes called the "dark side of the Moon", where "dark" means "unknown" instead of "lacking sunlight" each side of the Moon experiences two weeks of sunlight while the opposite side experiences two weeks of night. About 18 percent of the far side is occasionally visible from Earth due to libration. The remaining 82 percent remained unobserved until 1959, when it was photographed by the Soviet Luna 3 space probe. The Soviet Academy of Sciences published the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kidinnu (crater)
Kidinnu is an impact crater on the Moon's far side. It lies to the south of the crater H. G. Wells and to the southeast of Cantor. This is a somewhat unevenly formed crater with an outer rim that forms a rounded polygon In geometry, a polygon () is a plane figure that is described by a finite number of straight line segments connected to form a closed ''polygonal chain'' (or ''polygonal circuit''). The bounded plane region, the bounding circuit, or the two to .... The inner wall varies in width, with the narrowest stretch along the outward-bulging northeast. There are no craters of note along the rim or within the interior. The interior floor is uneven, with a central ridge that runs to the southern edge. 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 Kidinnu. References * * * * * * * * * * * * {{refend Impact craters on the Moon ... [...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] |
Cambridge University Press
Cambridge University Press is the university press of the University of Cambridge. Granted letters patent by Henry VIII of England, King Henry VIII in 1534, it is the oldest university press A university press is an academic publishing house specializing in monographs and scholarly journals. Most are nonprofit organizations and an integral component of a large research university. They publish work that has been reviewed by schola ... in the world. It is also the King's Printer. Cambridge University Press is a department of the University of Cambridge and is both an academic and educational publisher. It became part of Cambridge University Press & Assessment, following a merger with Cambridge Assessment in 2021. With a global sales presence, publishing hubs, and offices in more than 40 Country, countries, it publishes over 50,000 titles by authors from over 100 countries. Its publishing includes more than 380 academic journals, monographs, reference works, school and uni ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.svg "Click for more on -> Moon")
