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Larrocha (crater)
Larrocha is an impact crater on Mercury. It has a diameter of , and it is one of 110 peak ring basins on Mercury.Chapman, C. R., Baker, D. M. H., Barnouin, O. S., Fassett, C. I., Marchie, S., Merline, W. J., Ostrach, L. R., Prockter, L. M., and Strom, R. G., 2018. Impact Cratering of Mercury. In ''Mercury: The View After MESSENGER'' edited by Sean C. Solomon, Larry R. Nittler, and Brian J. Anderson. Cambridge Planetary Science. Chapter 9. It is located in the Victoria quadrangle (H-2 quadrangle) at . Larrocha was named after Spanish pianist Alicia de Larrocha; this name was adopted by the International Astronomical Union (IAU) on June 18, 2013. Larrocha contains abundant '' hollows'', including a large patch on the east side that is over 15 km long. See also * List of craters on Mercury This is a list of named craters on Mercury, the innermost planet of the Solar System ''(for other features, see list of geological features on Mercury)''. Most Mercurian ... [...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 deo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Victoria Quadrangle
The Victoria quadrangle is a region on Mercury from 0 to 90° longitude and 20 to 70 ° latitude. It is designated the "H-2" quadrangle, and is also known as Aurora after a large albedo feature. Most of the Victoria quadrangle lies within an area that appears bright on telescopic images of the planet, the bright-albedo feature Aurora, which approximately coincides with the east half of the quadrangle. As is common with most of the imaged portions of Mercury, the Victoria quadrangle is dominated by basins and large craters, with plains materials occupying the areas between them. The Borealis quadrangle is north of Victoria quadrangle. To the west is Shakespeare quadrangle, and to the east is Hokusai quadrangle. To the south is Kuiper quadrangle, and to the southwest is Beethoven quadrangle. ''Mariner 10'' images Almost all the pictures acquired by ''Mariner 10'' that were used for mapping were obtained during the first encounter: those covering the southeast half of the qua ... [...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 most ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alicia De Larrocha
Alicia de Larrocha y de la Calle (23 May 192325 September 2009) was a Spanish pianist and composer. She was considered one of the great piano legends of the 20th century. Reuters called her "the greatest Spanish pianist in history", ''Time'' "one of the world's most outstanding pianists", and ''The Guardian'' "the leading Spanish pianist of her time". She won multiple Grammy Awards and a Prince of Asturias Award for the Arts. She is credited with bringing greater popularity to the compositions of Isaac Albéniz and Enrique Granados. In 1995, she became the first Spanish artist to win the UNESCO Prize. Life and career Alicia de Larrocha was born in Barcelona, Catalonia, Spain. She began studying piano with Frank Marshall at the age of three. Both her parents were pianists and she was also the niece of pianists. She gave her first public performance at the age of five at the International Exposition in Barcelona. She performed her first concert at the age of six at the World's ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Larrocha Crater Hollows Detail MESSENGER
Alicia de Larrocha y de la Calle (23 May 192325 September 2009) was a Spanish pianist and composer. She was considered one of the great piano legends of the 20th century. Reuters called her "the greatest Spanish pianist in history", '' Time'' "one of the world's most outstanding pianists", and '' The Guardian'' "the leading Spanish pianist of her time". She won multiple Grammy Awards and a Prince of Asturias Award for the Arts. She is credited with bringing greater popularity to the compositions of Isaac Albéniz and Enrique Granados. In 1995, she became the first Spanish artist to win the UNESCO Prize. Life and career Alicia de Larrocha was born in Barcelona, Catalonia, Spain. She began studying piano with Frank Marshall at the age of three. Both her parents were pianists and she was also the niece of pianists. She gave her first public performance at the age of five at the International Exposition in Barcelona. She performed her first concert at the age of six at th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Larrocha Crater MESSENGER WAC IGF To RGB
Alicia de Larrocha y de la Calle (23 May 192325 September 2009) was a Spanish pianist and composer. She was considered one of the great piano legends of the 20th century. Reuters called her "the greatest Spanish pianist in history", '' Time'' "one of the world's most outstanding pianists", and '' The Guardian'' "the leading Spanish pianist of her time". She won multiple Grammy Awards and a Prince of Asturias Award for the Arts. She is credited with bringing greater popularity to the compositions of Isaac Albéniz and Enrique Granados. In 1995, she became the first Spanish artist to win the UNESCO Prize. Life and career Alicia de Larrocha was born in Barcelona, Catalonia, Spain. She began studying piano with Frank Marshall at the age of three. Both her parents were pianists and she was also the niece of pianists. She gave her first public performance at the age of five at the International Exposition in Barcelona. She performed her first concert at the age of six at th ... [...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] |
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-coll ... [...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] |
Hollows (Mercury)
Hollows are a landform on the planet Mercury, discovered during the '' MESSENGER'' mission that orbited the planet from 2011 to 2015. Hollows are typically clusters of rimless depressions with flat floors and haloes of bright (high albedo) material surrounding them. Hollows are thought to form by loss of volatiles from the surface by sublimation, caused by the intense solar radiation on the airless planet. They are some of the youngest features on Mercury. Hollows were first observed as bright areas within craters imaged by the Mariner 10 spacecraft in 1974, but the images were not of sufficient resolution to discern any detail. These craters include Balzac, Tyagaraja, Theophanes, Zeami, and Hopper.Dzurisin, D., 1977. Mercurian bright patches: Evidence for physio-chemical alteration of surface material? ''Geophysical Research Letters'', 4, 383-386, doi:10.1029/GL004i010p00383 The MESSENGER spacecraft imaged the rest of the planet, much of it at higher resolution and in co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Craters On Mercury
This is a list of named craters on Mercury, the innermost planet of the Solar System ''(for other features, see list of geological features on Mercury)''. Most Mercurian craters are named after famous writers, artists and composers. According to the rules by IAU's Working Group for Planetary System Nomenclature, all new craters must be named after an artist that was famous for more than fifty years, and dead for more than three years, before the date they are named. Craters larger than 250 km in diameter are referred to as "basins" ''(also see )''. As of 2021, there are 414 named Mercurian craters, a small fraction of the total number of named Solar System craters, most of which are lunar, Martian and Venerian craters. Other, non-planetary bodies with numerous named craters include Callisto ( 141), Ganymede ( 131), Rhea (128), Vesta (90), Ceres (90), Dione (73), Iapetus (58), Enceladus (53), Tethys (50) and Europa ( 41). For a full list, ''see List of craters in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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