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Ellington (crater)
Ellington is a crater on Mercury named after Duke Ellington, an American composer, pianist, and leader of a jazz orchestra. It was named by the IAU in 2012. Ellington is one of 110 peak ring basins on Mercury. Within Ellington is the smaller crater Berkel. The somewhat smaller crater Derain is to the northwest. Both Derain and Ellington lie within a much older, 730-km-diameter, unnamed crater (referred to as b36).Chapman, C. R., ''et al.'', 2018. Impact Cratering on Mercury. In ''Mercury: The View After MESSENGER ''MESSENGER'' was a NASA robotic space probe that orbited the planet Mercury between 2011 and 2015, studying Mercury's chemical composition, geology, and magnetic field. The name is a backronym for "Mercury Surface, Space Environment, Geoche ...'' edited by Sean C. Solomon, Larry R. Nittler, and Brian J. Anderson. Cambridge Planetary Science. Chapter 9, Figure 9.2 (a). References Impact craters on Mercury {{Mercury-planet-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MESSENGER
''MESSENGER'' was a NASA robotic space probe that orbited the planet Mercury between 2011 and 2015, studying Mercury's chemical composition, geology, and magnetic field. The name is a backronym for "Mercury Surface, Space Environment, Geochemistry, and Ranging", and a reference to the messenger god Mercury from Roman mythology. ''MESSENGER'' was launched aboard a Delta II rocket in August 2004. Its path involved a complex series of flybys – the spacecraft flew by Earth once, Venus twice, and Mercury itself three times, allowing it to decelerate relative to Mercury using minimal fuel. During its first flyby of Mercury in January 2008, ''MESSENGER'' became the second mission, after Mariner 10 in 1975, to reach Mercury. ''MESSENGER'' entered orbit around Mercury on March 18, 2011, becoming the first spacecraft to do so. It successfully completed its primary mission in 2012. Following two mission extensions, the spacecraft used the last of its maneuvering propellant to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Derain Quadrangle
The Derain quadrangle (H-10) is one of fifteen quadrangles on Mercury. It runs from 288° to 360° west longitude and from 22° S to 22° N latitude. Named after the Derain crater, it was mapped in detail for the first time after ''MESSENGER'' entered orbit around Mercury in 2011. It had not been mapped prior to that point because it was one of the six quadrangles that was not illuminated when ''Mariner 10'' made its flybys in 1974 and 1975. These six quadrangles continued to be known by their albedo feature names, with this one known as the Pieria quadrangle. The hypothetical Skinakas Basin was thought to exist on the west side of the quadrangle, but MESSENGER images did not confirm its existence. The large Lennon-Picasso Basin covers much of the eastern part of the quadrangle. Kuiper quadrangle is to the west of Derain quadrangle, and Eminescu quadrangle is to the east. Hokusai quadrangle The Hokusai quadrangle (H-5) is one of fifteen quadrangles on the planet Me ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mercury (planet)
Mercury is the smallest planet in the Solar System and the closest to the Sun. Its orbit around the Sun takes 87.97 Earth days, the shortest of all the Sun's planets. It is named after the Roman god ' ( Mercury), god of commerce, messenger of the gods, and mediator between gods and mortals, corresponding to the Greek god Hermes (). Like Venus, Mercury orbits the Sun within Earth's orbit as an inferior planet, and its apparent distance from the Sun as viewed from Earth never exceeds 28°. This proximity to the Sun means the planet can only be seen near the western horizon after sunset or the eastern horizon before sunrise, usually in twilight. At this time, it may appear as a bright star-like object, but is more difficult to observe than Venus. From Earth, the planet telescopically displays the complete range of phases, similar to Venus and the Moon, which recurs over its synodic period of approximately 116 days. The synodic proximity of Mercury to Earth makes Mercury ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Duke Ellington
Edward Kennedy "Duke" Ellington (April 29, 1899 – May 24, 1974) was an American jazz pianist, composer, and leader of his eponymous jazz orchestra from 1923 through the rest of his life. Born and raised in Washington, D.C., Ellington was based in New York City from the mid-1920s and gained a national profile through his orchestra's appearances at the Cotton Club in Harlem. A master at writing miniatures for the three-minute 78 rpm recording format, Ellington wrote or collaborated on more than one thousand compositions; his extensive body of work is the largest recorded personal jazz legacy, and many of his pieces have become standards. He also recorded songs written by his bandsmen, such as Juan Tizol's " Caravan", which brought a Spanish tinge to big band jazz. At the end of the 1930s, Ellington began a nearly thirty-year collaboration with composer-arranger-pianist Billy Strayhorn, whom he called his writing and arranging companion. With Strayhorn, he composed mu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ellington Crater Berkel Crater EW0252814064I
Ellington may refer to: Places United Kingdom *Ellington, Cambridgeshire * Ellington, Northumberland *Ellington High and Low, a civil parish in North Yorkshire **High Ellington **Low Ellington United States *Ellington Airport (Texas), Houston, Texas * Ellington, Connecticut * Ellington Township, Adams County, Illinois *Ellington Township, Hancock County, Iowa * Ellington, Missouri *Ellington, New York *Ellington Township, Michigan *Ellington Township, Dodge County, Minnesota *Ellington, Wisconsin People Given name *Ellington Ratliff, American drummer and actor *Ellington Feint, a character from Lemony Snicket's ''All the Wrong Questions'' Surname * Brian Ellington (born 1990), American baseball player *Buford Ellington (1907–1972), Governor of Tennessee from 1959 to 1963 *Christina Ellington (born 1982), Miss New York of 2004 *Douglas Ellington (1886–1960), American architect *Duke Ellington (1899–1974), American composer, pianist and bandleader * Edward Elling ... [...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 ... [...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] |
Peak Ring
A peak ring crater is a type of complex crater, which is different from a multi-ringed basin or central-peak crater. A central peak is not seen; instead, a roughly circular ring or plateau, possibly discontinuous, surrounds the crater's center, with the crater rim still farther out from the center. Formation The rings form by different processes, and inner rings may not be formed by the same processes as outer rings.Geology Pagewww.geologypage.com/2016/10/research-helps-explain-formation-ringed-crater-moon.html accessdate: February 5, 2017 It has long been the view that peak rings are formed in the stage subsequent to central peak formation in craters. The central peaks of craters are believed to originate from hydrodynamic flow of material lifted by inward-collapsing crater walls, while impact-shattered rock debris is briefly turned to fluid by strong vibrations that develop during crater formation. The peak-ring structure of Chicxulub crater was probably formed as inward-co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Berkel (crater)
Berkel is a crater on the planet Mercury. Its name was approved by the IAU on July 9, 2009. It was named after the modernist painter Sabri Berkel. The crater contains dark material in its center and in a ring immediately surrounding it. Moreover, Berkel is surrounded by a blanket of bright ejecta and a system of bright rays. Other craters on Mercury's surface, such as Bashō, also exhibit both bright rays and dark halos. In contrast, two neighboring craters have bright rays but lack dark halos. The floor of Berkel is a ''dark spot'' of low reflectance material (LRM), closely associated with hollows. Berkel lies within the much larger and older crater Ellington, which is to the southeast of Derain. Both Derain and Ellington lie within a much older, 730-km-diameter, unnamed crater (referred to as b36).Chapman, C. R., ''et al.'', 2018. Impact Cratering on Mercury. In ''Mercury: The View After MESSENGER ''MESSENGER'' was a NASA robotic space probe that orbited the plan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Derain (crater)
Derain is a crater on Mercury named after André Derain, a French artist, painter, sculptor and co-founder of Fauvism with Henri Matisse. It has uncommonly dark material within and surrounding the crater. The material is darker than the neighboring terrain such that this crater is easily identified even in a distant global image of Mercury. The dark halo may be material with a mineralogical composition different from the majority of Mercury's visible surface. Craters with similar dark material on or near their rims were seen on the floor of the Caloris basin during ''MESSENGER''’s first flyby. Derain is one of 110 peak ring basins on Mercury. The larger and older crater Ellington is to the southeast of Derain. Both Derain and Ellington lie within a much older, 730-km-diameter, unnamed crater (referred to as b36).Chapman, C. R., ''et al.'', 2018. Impact Cratering on Mercury. In ''Mercury: The View After MESSENGER ''MESSENGER'' was a NASA robotic space probe that orb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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