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Eta Corvi

Eta Corvi (Eta Crv, η Corvi, η Crv) is an F-type main-sequence star, the sixth-brightest star in the constellation of Corvus. [1]

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) »

Amorphous carbon

Amorphous carbon is free, reactive carbon that does not have any crystalline structure (also called diamond-like carbon).

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Astronomical unit

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

Astronomy and Astrophysics is a peer-reviewed scientific journal covering theoretical, observational, and instrumental astronomy and astrophysics.

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Bayer designation

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 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

Boss General Catalogue (GC, sometimes General Catalogue) is an astronomical catalogue containing 33,342 stars.

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Bright Star Catalogue

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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Byr

The abbreviation Byr means "billion years" (109 or 1,000,000,000 years).

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Calcium–aluminium-rich inclusion

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.

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Carbon

Carbon (from carbo "coal") is a chemical element with symbol C and atomic number 6.

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Centaur (minor planet)

Centaurs are small Solar System bodies with a semi-major axis between those of the outer planets.

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Centre de données astronomiques de Strasbourg

The Centre de données astronomiques de Strasbourg (CDS; English translation: Strasbourg Astronomical Data Center) is a data hub which collects and distributes astronomical information.

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Chariot (Chinese constellation)

The Chariot mansion is one of the Twenty-eight mansions of the Chinese constellations.

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Chinese astronomy

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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Chinese constellations

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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Circumstellar habitable zone

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.

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Comet

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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Constellation

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 (constellation)

Corvus is a small constellation in the Southern Celestial Hemisphere.

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Debris disk

A debris disk is a circumstellar disk of dust and debris in orbit around a star.

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Dover Publications

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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Durchmusterung

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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Effective temperature

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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Epoch (astronomy)

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 designation

Flamsteed designations for stars are similar to Bayer designations, except that they use numbers instead of Greek and Roman letters.

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Gliese Catalogue of Nearby Stars

The Gliese Catalogue of Nearby Stars is a modern star catalogue of stars located within 25 parsecs (81.54 ly) of the Earth.

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Henry Draper Catalogue

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

Hipparcos was a scientific satellite of the European Space Agency (ESA), launched in 1989 and operated until 1993.

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Infrared excess

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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International Celestial Reference System

The International Celestial Reference System (ICRS) is the current standard celestial reference system adopted by the International Astronomical Union (IAU).

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IRAS

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

Iron is a chemical element with symbol Fe (from ferrum) and atomic number 26.

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Johns Hopkins University

The Johns Hopkins University (commonly referred to as Johns Hopkins, JHU, or simply Hopkins) is a private research university in Baltimore, Maryland.

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Kelvin

The kelvin is a unit of measure for temperature based upon an absolute scale.

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Kilogram

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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Kilometre

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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Kuiper belt

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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Late Heavy Bombardment

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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Main sequence

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-

Micro (symbol µ) is a unit prefix in the metric system denoting a factor of 10−6 (one millionth).

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Mineral

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

Monthly Notices of the Royal Astronomical Society (MNRAS) is a peer-reviewed scientific journal covering research in astronomy and astrophysics.

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Moon

The Moon (in Greek: Selene, in Latin: Luna) is Earth's only natural satellite.

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Myr

The abbreviation myr refers to a unit of time equal to one million years.

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Olivine

The mineral olivine is a magnesium iron silicate with the formula (Mg+2, Fe+2)2SiO4.

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Orbital inclination

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

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

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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Planetesimal

Planetesimals are solid objects thought to exist in protoplanetary disks and in debris disks.

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Poynting–Robertson effect

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.

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PPM Star Catalogue

The PPM Star Catalogue (Positions and Proper Motions Star Catalogue) is the successor of the SAO Catalogue.

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Protoplanetary disk

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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Pyroxene

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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Russian Academy of Sciences

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.

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Silicon dioxide

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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Smithsonian Astrophysical Observatory Star Catalog

The Smithsonian Astrophysical Observatory Star Catalog is an astrometric star catalogue.

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Solar System

The Solar SystemCapitalization of the name varies.

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Solid

Solid is one of the four fundamental states of matter (the others being liquid, gas, and plasma).

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Spitzer Space Telescope

The Spitzer Space Telescope (SST), formerly the Space Infrared Telescope Facility (SIRTF), is an infrared space observatory launched in 2003.

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Star

A star is a luminous sphere of plasma held together by its own gravity.

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Star catalogue

A star catalogue, or star catalog, is an astronomical catalogue that lists stars.

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Stellar classification

In astronomy, stellar classification is the classification of stars based on their spectral characteristics.

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Stellar rotation

Stellar rotation is the angular motion of a star about its axis.

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Sternberg Astronomical Institute

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.

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Submillimetre astronomy

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.

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Sulfide minerals

The sulfide minerals are a class of minerals containing sulfide (S2−) as the major anion.

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The Astrophysical Journal

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.

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Thermodynamic equilibrium

Thermodynamic equilibrium is an axiomatic concept of classical thermodynamics.

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University of Illinois at Urbana–Champaign

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.

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Redirects here:

8 Corvi, 8 Crv, BD -15 3489, BD −15 3489, BD-15 3489, BD−15 3489, Eta Crv, GC 17087, GJ 471.2, GJ 9411, HD 109085, HIP 61174, HR 4775, LTT 4755, NLTT 31021, PPM 225971, SAO 157345, Η Corvi, Η Crv.

References

[1] https://en.wikipedia.org/wiki/Eta_Corvi

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