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38628 Huya
38628 Huya ( ), provisional designation , is a binary trans-Neptunian object located in the Kuiper belt, a region of icy objects orbiting beyond Neptune in the outer Solar System. Huya is classified as a plutino, a dynamical class of trans-Neptunian objects with orbits in a 3:2 orbital resonance with Neptune. It was discovered by the Quasar Equatorial Survey Team and was identified by Venezuelan astronomer Ignacio Ferrín in March 2000. It is named after Juyá, the mythological rain god of the Wayuu people native to South America. Huya's surface is moderately red in color due to the presence of complex organic compounds on its surface. Water ice has been suspected to be also present on its surface, although water ice has not been directly detected on Huya. Huya is considered as a mid-sized trans-Neptunian object, with an estimated diameter of about . Huya is considered to be a possible dwarf planet, though its relatively small size and dark surface may imply that it never co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hubble Space Telescope
The Hubble Space Telescope (often referred to as HST or Hubble) is a space telescope that was launched into low Earth orbit in 1990 and remains in operation. It was not the first space telescope, but it is one of the largest and most versatile, renowned both as a vital research tool and as a public relations boon for astronomy. The Hubble telescope is named after astronomer Edwin Hubble and is one of NASA's Great Observatories. The Space Telescope Science Institute (STScI) selects Hubble's targets and processes the resulting data, while the Goddard Space Flight Center (GSFC) controls the spacecraft. Hubble features a mirror, and its five main instruments observe in the ultraviolet, visible, and near-infrared regions of the electromagnetic spectrum. Hubble's orbit outside the distortion of Earth's atmosphere allows it to capture extremely high-resolution images with substantially lower background light than ground-based telescopes. It has recorded some of the most detaile ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kuiper Belt
The Kuiper belt () is a circumstellar disc in the outer Solar System, extending from the orbit of Neptune at 30 astronomical units (AU) to approximately 50 AU from the Sun. It is similar to the asteroid belt, but is far larger—20 times as wide and 20–200 times as massive. Like the asteroid belt, it consists mainly of small bodies or remnants from when the Solar System formed. While many asteroids are composed primarily of rock and metal, most Kuiper belt objects are composed largely of frozen volatiles (termed "ices"), such as methane, ammonia, and water. The Kuiper belt is home to most of the objects that astronomers generally accept as dwarf planets: Orcus, Pluto, Haumea, Quaoar, and Makemake. Some of the Solar System's moons, such as Neptune's Triton and Saturn's Phoebe, may have originated in the region. The Kuiper belt was named after Dutch astronomer Gerard Kuiper, although he did not predict its existence. In 1992, minor planet (15760) Albion was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mérida, Mérida
Mérida, officially known as ''Santiago de los Caballeros de Mérida'', is the capital of the municipality of Libertador and the state of Mérida, and is one of the main cities of the Venezuelan Andes. It was founded in 1558 by Captain Juan Rodríguez Suárez, forming part of Nueva Granada, but later became part of the Captaincy General of Venezuela and played an active role in the War of Independence. The capital city's population is 204,879 inhabitants, and the metropolitan area, that includes the municipality of Libertador, reaches 345,489 people (Census 2001). The city accounts for 28% of the total population of Mérida State, which has more than 750,000 inhabitants (Census 2001). It is home to the University of Los Andes and the Archdiocese of Mérida. It also has the highest and longest cable car in the world. It is the largest student and tourist center of western Venezuela. The mass transit system ( Trolebús Mérida) is available as a means of tourist transport. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Synchronous Rotation
Tidal locking between a pair of co-orbiting astronomical bodies occurs when one of the objects reaches a state where there is no longer any net change in its rotation rate over the course of a complete orbit. In the case where a tidally locked body possesses synchronous rotation, the object takes just as long to rotate around its own axis as it does to revolve around its partner. For example, the same side of the Moon always faces the Earth, although there is some variability because the Moon's orbit is not perfectly circular. Usually, only the satellite is tidally locked to the larger body. However, if both the difference in mass between the two bodies and the distance between them are relatively small, each may be tidally locked to the other; this is the case for Pluto and Charon. Alternative names for the tidal locking process are gravitational locking, captured rotation, and spin–orbit locking. The effect arises between two bodies when their gravitational interaction slo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Natural Satellite
A natural satellite is, in the most common usage, an astronomical body that orbits a planet, dwarf planet, or small Solar System body (or sometimes another natural satellite). Natural satellites are often colloquially referred to as ''moons'', a derivation from the Moon of Earth. In the Solar System, there are six planetary satellite systems containing 209 known natural satellites altogether. Seven objects commonly considered dwarf planets by astronomers are also known to have natural satellites: , Pluto, Haumea, , Makemake, , and Eris. , there are 442 other minor planets known to have natural satellites. A planet usually has at least around 10,000 times the mass of any natural satellites that orbit it, with a correspondingly much larger diameter. The Earth–Moon system is a unique exception in the Solar System; at 3,474 kilometres (2,158 miles) across, the Moon is 0.273 times the diameter of Earth and about of its mass. The next largest ratios are the Neptune–Tr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dwarf Planet
A dwarf planet is a small planetary-mass object that is in direct orbit of the Sun, smaller than any of the eight classical planets but still a world in its own right. The prototypical dwarf planet is Pluto. The interest of dwarf planets to planetary geologists is that they may be geologically active bodies, an expectation that was borne out in 2015 by the ''Dawn'' mission to and the '' New Horizons'' mission to Pluto. Astronomers are in general agreement that at least the nine largest candidates are dwarf planets: Pluto, , , , , , , , and . Of these and the tenth-largest candidate , all but Sedna have either been visited by spacecraft (Pluto and Ceres) or have at least one known moon (Pluto, Eris, Haumea, Makemake, Gonggong, Quaoar, Orcus, and Salacia), which allows their masses and thus an estimate of their densities to be determined. Mass and density in turn can be fit into geophysical models in an attempt to determine the nature of these worlds. Some astronomers include ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Possible Dwarf Planets
The number of dwarf planets in the Solar System is unknown. Estimates have run as high as 200 in the Kuiper belt and over 10,000 in the region beyond. However, consideration of the surprisingly low densities of many large trans-Neptunian objects suggests that the number of dwarf planets may be much lower, perhaps only nine among bodies known so far. The International Astronomical Union (IAU) defines dwarf planets as being in hydrostatic equilibrium, and notes five bodies in particular: in the inner Solar System and four in the trans-Neptunian region: , , , and . Only Pluto and Ceres have been confirmed to be in hydrostatic equilibrium, due to the results of the '' New Horizons'' and ''Dawn'' missions. Eris is generally assumed to be a dwarf planet because it is similar in size to Pluto and even more massive. Haumea and Makemake were accepted as dwarf planets by the IAU for naming purposes and will keep their names if it turns out they are not dwarf planets. Smaller trans-Neptun ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Organic Compound
In chemistry, organic compounds are generally any chemical compounds that contain carbon-hydrogen or carbon-carbon bonds. Due to carbon's ability to catenate (form chains with other carbon atoms), millions of organic compounds are known. The study of the properties, reactions, and syntheses of organic compounds comprise the discipline known as organic chemistry. For historical reasons, a few classes of carbon-containing compounds (e.g., carbonate salts and cyanide salts), along with a few other exceptions (e.g., carbon dioxide, hydrogen cyanide), are not classified as organic compounds and are considered inorganic. Other than those just named, little consensus exists among chemists on precisely which carbon-containing compounds are excluded, making any rigorous definition of an organic compound elusive. Although organic compounds make up only a small percentage of Earth's crust, they are of central importance because all known life is based on organic compounds. Living t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South America
South America is a continent entirely in the Western Hemisphere and mostly in the Southern Hemisphere, with a relatively small portion in the Northern Hemisphere at the northern tip of the continent. It can also be described as the southern subregion of a single continent called America. South America is bordered on the west by the Pacific Ocean and on the north and east by the Atlantic Ocean; North America and the Caribbean Sea lie to the northwest. The continent generally includes twelve sovereign states: Argentina, Bolivia, Brazil, Chile, Colombia, Ecuador, Guyana, Paraguay, Peru, Suriname, Uruguay, and Venezuela; two dependent territories: the Falkland Islands and South Georgia and the South Sandwich Islands; and one internal territory: French Guiana. In addition, the ABC islands of the Kingdom of the Netherlands, Ascension Island (dependency of Saint Helena, Ascension and Tristan da Cunha, a British Overseas Territory), Bouvet Island ( dependency of Norway), Pa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wayuu People
The Wayuu (also Wayu, Wayúu, Guajiro, Wahiro) are an Amerindian ethnic group of the Guajira Peninsula in northernmost part of Colombia and northwest Venezuela. The Wayuu language is part of the Maipuran (Arawak) language family. Geography The Wayúu inhabit the arid Guajira Peninsula straddling the Venezuela-Colombia border, on the Caribbean Sea coast. Two major rivers flow through this mostly harsh environment: the Rancheria River in Colombia and the El Limón River in Venezuela representing the main source of water, along with artificial ponds designed to hold rain water during the rain season. The territory has equatorial weather seasons: a rainy season from September to December, which they call ''Juyapu''; a dry season, known by them as ''Jemial'', from December to April; a second rainy season called ''Iwa'' from April to May; and a long second dry season from May to September. History Guajira rebellion Although the Wayuu were never subjugated by the Spanish, the t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rain God
There are many different gods of rain in different religions: African African mythology * Anẓar, god of rain in Berber mythology. * Achek, wife of the rain god Deng in Dinka mythology * Mangwe, a water spirit known as "the flooder" in the beliefs of the Ila people of Zambia * Oya, goddess of violent rainstorms in Yoruba mythology * Sinvula, god of rain in Bantu mythology * Nanvula/Nomvula goddess of rain Bantu mythology * Mbaba Mwana Waresa, goddess of rain in Bantu mythology * Mpulu Bunzi, god of rain in Kongo mythology. * Bunzi, goddess of rain in Woyo mythology (Kongo). *Saa ngmin, God of rain in Dagaaba mythology (Upper West Region of Ghana) American Mesoamerica * Chaac, in Maya religion; * Tohil, in K'iche' Maya mythology * Q'uq'umatz, another K'iche' Maya rain god * Tlaloc, in Aztec and all the other Nahua religions; * Cocijo, in Zapotec religion; * Tirípeme Curicaueri, in Purépecha religion; * Dzahui, in Mixtec religion; * Mu'ye, in Otomi religion * Jaguar, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quasar Equatorial Survey Team
The Quasar Equatorial Survey Team (QUEST) is a joint venture between Yale University, Indiana University, and Centro de Investigaciones de Astronomia (CIDA) to photographically survey the sky using a digital camera, an array of 112 charge-coupled devices. Since 2009, it has used the 1 m ESO Schmidt Telescope in Chile. From 2003–2007, it used the 48 inch (1.22 m) Samuel Oschin telescope at the Palomar Observatory. Before that, it had used the 1.0-metre Schmidt telescope at the Llano del Hato National Astronomical Observatory in Venezuela Venezuela (; ), officially the Bolivarian Republic of Venezuela ( es, link=no, República Bolivariana de Venezuela), is a country on the northern coast of South America, consisting of a continental landmass and many islands and islets in th .... References * * * As of 08/09/2017 all the following links are broken. * * * Astronomy organizations Astronomical surveys {{Astronomy-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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