69 relations: Amorphous carbon, Astronomical unit, Astronomy and Astrophysics, Bayer designation, Beta Corvi, Boss General Catalogue, Bright Star Catalogue, Byr, Calcium–aluminium-rich inclusion, Carbon, Centaur (minor planet), Centre de données astronomiques de Strasbourg, Chariot (Chinese constellation), Chinese astronomy, Chinese constellations, Circumstellar habitable zone, Comet, Constellation, Corvus (constellation), Debris disk, Dover Publications, Durchmusterung, Effective temperature, Epoch (astronomy), Flamsteed designation, Gliese Catalogue of Nearby Stars, Henry Draper Catalogue, Hipparcos, Infrared excess, International Celestial Reference System, IRAS, Iron, Johns Hopkins University, Kelvin, Kilogram, Kilometre, Kuiper belt, Late Heavy Bombardment, Main sequence, Micro-, Mineral, Monthly Notices of the Royal Astronomical Society, Moon, Myr, Olivine, Orbital inclination, Pinyin, Planetary migration, Planetesimal, Poynting–Robertson effect, ..., PPM Star Catalogue, Protoplanetary disk, Pyroxene, Russian Academy of Sciences, Silicon dioxide, Smithsonian Astrophysical Observatory Star Catalog, Solar System, Solid, Spitzer Space Telescope, Star, Star catalogue, Stellar classification, Stellar rotation, Sternberg Astronomical Institute, Submillimetre astronomy, Sulfide minerals, The Astrophysical Journal, Thermodynamic equilibrium, University of Illinois at Urbana–Champaign. Expand index (19 more) » « Shrink index
Amorphous carbon is free, reactive carbon that does not have any crystalline structure (also called diamond-like carbon).
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The astronomical unit (symbol au, AU or ua) is a unit of length, roughly the distance from the Earth to the Sun.
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Astronomy and Astrophysics is a peer-reviewed scientific journal covering theoretical, observational, and instrumental astronomy and astrophysics.
A Bayer designation is a stellar designation in which a specific star is identified by a Greek letter, followed by the genitive form of its parent constellation's Latin name.
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Beta Corvi (Beta Crv, β Corvi, β Crv) is the second brightest star in the southern constellation of Corvus.
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Boss General Catalogue (GC, sometimes General Catalogue) is an astronomical catalogue containing 33,342 stars.
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The Bright Star Catalogue, also known as the Yale Catalogue of Bright Stars or Yale Bright Star Catalogue, is a star catalogue that lists all stars of stellar magnitude 6.5 or brighter, which is roughly every star visible to the naked eye from Earth.
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The abbreviation Byr means "billion years" (109 or 1,000,000,000 years).
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A calcium–aluminium-rich inclusion or Ca–Al-rich inclusion (CAI) is a submillimeter- to centimeter-sized light-colored calcium- and aluminium-rich inclusion found in carbonaceous chondrite meteorites.
Carbon (from carbo "coal") is a chemical element with symbol C and atomic number 6.
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Centaurs are small Solar System bodies with a semi-major axis between those of the outer planets.
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The Centre de données astronomiques de Strasbourg (CDS; English translation: Strasbourg Astronomical Data Center) is a data hub which collects and distributes astronomical information.
The Chariot mansion is one of the Twenty-eight mansions of the Chinese constellations.
Astronomy in China has a very long history, with historians indicating that the Chinese were the most persistent and accurate observers of celestial phenomena anywhere in the world before the Arabs.
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Traditional Chinese astronomy has a system of dividing the celestial sphere into asterisms or constellations, known as "officials" (Chinese xīng guān).
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In astronomy and astrobiology, the circumstellar habitable zone (CHZ), or simply the habitable zone, is the region around a star within which planetary-mass objects with sufficient atmospheric pressure can support liquid water at their surfaces.
A comet is an icy small Solar System body that, when passing close to the Sun, heats up and begins to outgas, displaying a visible atmosphere or coma, and sometimes also a tail.
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In modern astronomy, a constellation is a specific area of the celestial sphere as defined by the International Astronomical Union (IAU).
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Corvus is a small constellation in the Southern Celestial Hemisphere.
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A debris disk is a circumstellar disk of dust and debris in orbit around a star.
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Dover Publications, also known as Dover Books, is an American book publisher founded in 1941 by Hayward Cirker and his wife, Blanche.
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In astronomy, Durchmusterung or Bonner Durchmusterung (BD), is the comprehensive astrometric star catalogue of the whole sky, compiled by the Bonn Observatory (Germany) from 1859 to 1903.
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The effective temperature of a body such as a star or planet is the temperature of a black body that would emit the same total amount of electromagnetic radiation.
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In astronomy, an epoch is a moment in time used as a reference point for some time-varying astronomical quantity, such as the celestial coordinates or elliptical orbital elements of a celestial body, because these are subject to perturbations and vary with time.
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Flamsteed designations for stars are similar to Bayer designations, except that they use numbers instead of Greek and Roman letters.
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The Gliese Catalogue of Nearby Stars is a modern star catalogue of stars located within 25 parsecs (81.54 ly) of the Earth.
The Henry Draper Catalogue (HD) is an astronomical star catalogue published between 1918 and 1924, giving spectroscopic classifications for 225,300 stars; it was later expanded by the Henry Draper Extension (HDE), published between 1925 and 1936, which gave classifications for 46,850 more stars, and by the Henry Draper Extension Charts (HDEC), published from 1937 to 1949 in the form of charts, which gave classifications for 86,933 more stars.
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Hipparcos was a scientific satellite of the European Space Agency (ESA), launched in 1989 and operated until 1993.
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An infrared excess is a measurement of an astronomical source, typically a star, that in their spectral energy distribution has a greater measured infrared flux than expected by assuming the star is a blackbody radiator.
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The International Celestial Reference System (ICRS) is the current standard celestial reference system adopted by the International Astronomical Union (IAU).
The Infrared Astronomical Satellite (IRAS) was the first-ever space-based observatory to perform a survey of the entire sky at infrared wavelengths.
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Iron is a chemical element with symbol Fe (from ferrum) and atomic number 26.
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The Johns Hopkins University (commonly referred to as Johns Hopkins, JHU, or simply Hopkins) is a private research university in Baltimore, Maryland.
The kelvin is a unit of measure for temperature based upon an absolute scale.
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The kilogram or kilogramme (SI unit symbol: kg), is the base unit of mass in the International System of Units (SI) (the Metric system) and is defined as being equal to the mass of the International Prototype of the Kilogram (IPK).
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The kilometre (International spelling as used by the International Bureau of Weights and Measures; SI symbol: km; or) or kilometer (American spelling) is a unit of length in the metric system, equal to one thousand metres (kilo- being the SI prefix for). It is now the measurement unit used officially for expressing distances between geographical places on land in most of the world; notable exceptions are the United States and the United Kingdom where the statute mile is the official unit used.
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The Kuiper belt or (as in Dutch), sometimes called the Edgeworth–Kuiper belt, is a region of the Solar System beyond the planets, extending from the orbit of Neptune (at 30 AU) to approximately 50 AU from the Sun.
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The Late Heavy Bombardment (abbreviated LHB and also known as the lunar cataclysm) is a hypothetical event thought to have occurred approximately 4.1 to 3.8 billion years (Ga) ago, corresponding to the Neohadean and Eoarchean eras on Earth.
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In astronomy, the main sequence is a continuous and distinctive band of stars that appears on plots of stellar color versus brightness.
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Micro (symbol µ) is a unit prefix in the metric system denoting a factor of 10−6 (one millionth).
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A mineral is a naturally occurring substance that is solid and inorganic, representable by a chemical formula, usually abiogenic, and has an ordered atomic structure.
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Monthly Notices of the Royal Astronomical Society (MNRAS) is a peer-reviewed scientific journal covering research in astronomy and astrophysics.
The Moon (in Greek: Selene, in Latin: Luna) is Earth's only natural satellite.
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The abbreviation myr refers to a unit of time equal to one million years.
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The mineral olivine is a magnesium iron silicate with the formula (Mg+2, Fe+2)2SiO4.
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Orbital inclination is the angle between a reference plane and the orbital plane or axis of direction of an object in orbit around another object.
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Pinyin, or Hanyu Pinyin, is the official phonetic system for transcribing the Mandarin pronunciations of Chinese characters into the Latin alphabet in China, Taiwan, and Singapore. It is often used to teach Standard Chinese and a pinyin without diacritic markers is often used in foreign publications to spell Chinese names familiar to non-Chinese and may be used as an input method to enter Chinese characters into computers. The Hanyu Pinyin system was developed in the 1950s based on earlier forms of romanization. It was published by the Chinese government in 1958 and revised several times. The International Organization for Standardization (ISO) adopted pinyin as an international standard in 1982. The system was adopted as the official standard in Taiwan in 2009, where it is used for romanization alone rather than for educational and computer input purposes. The word Hànyǔ means the spoken language of the Han people and pīnyīn literally means "spelled-out sounds".
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Planetary migration occurs when a planet or other stellar satellite interacts with a disk of gas or planetesimals, resulting in the alteration of the satellite's orbital parameters, especially its semi-major axis.
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Planetesimals are solid objects thought to exist in protoplanetary disks and in debris disks.
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The Poynting–Robertson effect, also known as Poynting–Robertson drag, named after John Henry Poynting and Howard P. Robertson, is a process by which solar radiation causes a dust grain orbiting a star to lose angular momentum relative to its orbit around the star.
The PPM Star Catalogue (Positions and Proper Motions Star Catalogue) is the successor of the SAO Catalogue.
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A protoplanetary disk is a rotating circumstellar disk of dense gas surrounding a young newly formed star, a T Tauri star, or Herbig Ae/Be star.
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The pyroxenes (commonly abbreviated to Px) are a group of important rock-forming inosilicate minerals found in many igneous and metamorphic rocks.
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The Russian Academy of Sciences (RAS) (Росси́йская акаде́мия нау́к (РАН) Rossíiskaya akadémiya naúk) consists of the national academy of Russia; a network of scientific research institutes from across the Russian Federation; and additional scientific and social units such as libraries, publishing units, and hospitals.
Silicon dioxide, also known as silica (from the Latin silex), is a chemical compound that is an oxide of silicon with the chemical formula.
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The Smithsonian Astrophysical Observatory Star Catalog is an astrometric star catalogue.
The Solar SystemCapitalization of the name varies.
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Solid is one of the four fundamental states of matter (the others being liquid, gas, and plasma).
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The Spitzer Space Telescope (SST), formerly the Space Infrared Telescope Facility (SIRTF), is an infrared space observatory launched in 2003.
A star is a luminous sphere of plasma held together by its own gravity.
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A star catalogue, or star catalog, is an astronomical catalogue that lists stars.
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In astronomy, stellar classification is the classification of stars based on their spectral characteristics.
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Stellar rotation is the angular motion of a star about its axis.
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The Sternberg Astronomical Institute (Государственный астрономический институт имени Штернберга in Russian), also known as GAISh (ГАИШ), is a research institution in Moscow, Russia, a division of Moscow State University.
Submillimetre astronomy or submillimeter astronomy (see spelling differences) is the branch of observational astronomy that is conducted at submillimetre wavelengths (i.e., terahertz radiation) of the electromagnetic spectrum.
The sulfide minerals are a class of minerals containing sulfide (S2−) as the major anion.
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The Astrophysical Journal, often abbreviated ApJ (pronounced "ap jay") in references and speech, is a peer-reviewed scientific journal of astrophysics, established in 1895 by American astronomers George Ellery Hale and James Edward Keeler.
Thermodynamic equilibrium is an axiomatic concept of classical thermodynamics.
The University of Illinois at Urbana–Champaign (U of I, University of Illinois, UIUC, or simply Illinois) is a public research-intensive university in the U.S. state of Illinois.