Logo
Unionpedia
Communication
Get it on Google Play
New! Download Unionpedia on your Android™ device!
Free
Faster access than browser!
 

Eta Corvi

+ Save concept

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]

68 relations: Amorphous carbon, Astronomical unit, Astronomy & Astrophysics, Bayer designation, Beta Corvi, Billion years, Boss General Catalogue, Bright Star Catalogue, 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. Expand index (18 more) »

Amorphous carbon

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

New!!: Eta Corvi and Amorphous carbon · See more »

Astronomical unit

The astronomical unit (symbol: au, ua, or AU) is a unit of length, roughly the distance from Earth to the Sun.

New!!: Eta Corvi and Astronomical unit · See more »

Astronomy & Astrophysics

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

New!!: Eta Corvi and Astronomy & Astrophysics · See more »

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.

New!!: Eta Corvi and Bayer designation · See more »

Beta Corvi

Beta Corvi (β Corvi, abbreviated Beta Crv, β Crv), also named Kraz, is the second-brightest star in the southern constellation of Corvus with an apparent visual magnitude of 2.647.

New!!: Eta Corvi and Beta Corvi · See more »

Billion years

A billion years (109 years) is a unit of time on the petasecond scale, more precisely equal to seconds.

New!!: Eta Corvi and Billion years · See more »

Boss General Catalogue

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

New!!: Eta Corvi and Boss General Catalogue · See more »

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.

New!!: Eta Corvi and Bright Star Catalogue · See more »

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.

New!!: Eta Corvi and Calcium–aluminium-rich inclusion · See more »

Carbon

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

New!!: Eta Corvi and Carbon · See more »

Centaur (minor planet)

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

New!!: Eta Corvi and Centaur (minor planet) · See more »

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.

New!!: Eta Corvi and Centre de données astronomiques de Strasbourg · See more »

Chariot (Chinese constellation)

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

New!!: Eta Corvi and Chariot (Chinese constellation) · See more »

Chinese astronomy

Astronomy in China has a long history, beginning from the Shang Dynasty (Chinese Bronze Age).

New!!: Eta Corvi and Chinese astronomy · See more »

Chinese constellations

Traditional Chinese astronomy has a system of dividing the celestial sphere into asterisms or constellations, known as "officials" (Chinese xīng guān).

New!!: Eta Corvi and Chinese constellations · See more »

Christmas

Christmas is an annual festival commemorating the birth of Jesus Christ,Martindale, Cyril Charles.

New!!: Eta Corvi and Christmas · See more »

Christmas and holiday season

The Christmas season, also called the festive season, or the holiday season (mainly in the U.S. and Canada; often simply called the holidays),, is an annually recurring period recognized in many Western and Western-influenced countries that is generally considered to run from late November to early January.

New!!: Eta Corvi and Christmas and holiday season · See more »

Christmas Eve

Christmas Eve is the evening or entire day before Christmas Day, the festival commemorating the birth of Jesus.

New!!: Eta Corvi and Christmas Eve · See more »

Christmas traditions

Christmas traditions vary from country to country.

New!!: Eta Corvi and Christmas traditions · See more »

Circumstellar habitable zone

In astronomy and astrobiology, the circumstellar habitable zone (CHZ), or simply the habitable zone, is the range of orbits around a star within which a planetary surface can support liquid water given sufficient atmospheric pressure.

New!!: Eta Corvi and Circumstellar habitable zone · See more »

Comet

A comet is an icy small Solar System body that, when passing close to the Sun, warms and begins to release gases, a process called outgassing.

New!!: Eta Corvi and Comet · See more »

Constellation

A constellation is a group of stars that are considered to form imaginary outlines or meaningful patterns on the celestial sphere, typically representing animals, mythological people or gods, mythological creatures, or manufactured devices.

New!!: Eta Corvi and Constellation · See more »

Corvus (constellation)

Corvus is a small constellation in the Southern Celestial Hemisphere.

New!!: Eta Corvi and Corvus (constellation) · See more »

Debris disk

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

New!!: Eta Corvi and Debris disk · See more »

Dover Publications

Dover Publications, also known as Dover Books, is an American book publisher founded in 1941 by Hayward Cirker and his wife, Blanche.

New!!: Eta Corvi and Dover Publications · See more »

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.

New!!: Eta Corvi and Durchmusterung · See more »

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.

New!!: Eta Corvi and Effective temperature · See more »

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.

New!!: Eta Corvi and Epoch (astronomy) · See more »

Flamsteed designation

A Flamsteed designation is a combination of a number and constellation name that uniquely identifies most naked eye stars in the modern constellations visible from southern England.

New!!: Eta Corvi and Flamsteed designation · See more »

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.

New!!: Eta Corvi and Gliese Catalogue of Nearby Stars · See more »

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.

New!!: Eta Corvi and Henry Draper Catalogue · See more »

Hipparcos

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

New!!: Eta Corvi and Hipparcos · See more »

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.

New!!: Eta Corvi and Infrared excess · See more »

International Celestial Reference System

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

New!!: Eta Corvi and International Celestial Reference System · See more »

IRAS

The Infrared Astronomical Satellite (IRAS) was the first-ever space telescope to perform a survey of the entire night sky at infrared wavelengths.

New!!: Eta Corvi and IRAS · See more »

Iron

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

New!!: Eta Corvi and Iron · See more »

Johns Hopkins University

Johns Hopkins University is an American private research university in Baltimore, Maryland.

New!!: Eta Corvi and Johns Hopkins University · See more »

Kelvin

The Kelvin scale is an absolute thermodynamic temperature scale using as its null point absolute zero, the temperature at which all thermal motion ceases in the classical description of thermodynamics.

New!!: Eta Corvi and Kelvin · See more »

Kilogram

The kilogram or kilogramme (symbol: kg) is the base unit of mass in the International System of Units (SI), and is defined as being equal to the mass of the International Prototype of the Kilogram (IPK, also known as "Le Grand K" or "Big K"), a cylinder of platinum-iridium alloy stored by the International Bureau of Weights and Measures at Saint-Cloud, France.

New!!: Eta Corvi and Kilogram · See more »

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 road network of the United Kingdom where the statute mile is the official unit used.

New!!: Eta Corvi and Kilometre · See more »

Kuiper belt

The Kuiper belt, occasionally called the Edgeworth–Kuiper belt, is a circumstellar disc in the outer Solar System, extending from the orbit of Neptune (at 30 AU) to approximately 50 AU from the Sun.

New!!: Eta Corvi and Kuiper belt · See more »

Late Heavy Bombardment

The Late Heavy Bombardment (abbreviated LHB and also known as the lunar cataclysm) is an event thought to have occurred approximately 4.1 to 3.8 billion years (Ga) ago, at a time corresponding to the Neohadean and Eoarchean eras on Earth.

New!!: Eta Corvi and Late Heavy Bombardment · See more »

Main sequence

In astronomy, the main sequence is a continuous and distinctive band of stars that appear on plots of stellar color versus brightness.

New!!: Eta Corvi and Main sequence · See more »

Micro-

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

New!!: Eta Corvi and Micro- · See more »

Mineral

A mineral is a naturally occurring chemical compound, usually of crystalline form and not produced by life processes.

New!!: Eta Corvi and Mineral · See more »

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.

New!!: Eta Corvi and Monthly Notices of the Royal Astronomical Society · See more »

Moon

The Moon is an astronomical body that orbits planet Earth and is Earth's only permanent natural satellite.

New!!: Eta Corvi and Moon · See more »

Myr

The abbreviation myr, "million years", is a unit of a quantity of (i.e.) years, or 31.6 teraseconds.

New!!: Eta Corvi and Myr · See more »

New Year

New Year is the time or day at which a new calendar year begins and the calendar's year count increments by one.

New!!: Eta Corvi and New Year · See more »

New Year's Day

New Year's Day, also called simply New Year's or New Year, is observed on January 1, the first day of the year on the modern Gregorian calendar as well as the Julian calendar.

New!!: Eta Corvi and New Year's Day · See more »

New Year's Eve

In the Gregorian calendar, New Year's Eve (also known as Old Year's Day or Saint Sylvester's Day in many countries), the last day of the year, is on 31 December which is the seventh day of Christmastide.

New!!: Eta Corvi and New Year's Eve · See more »

Olivine

The mineral olivine is a magnesium iron silicate with the formula (Mg2+, Fe2+)2SiO4.

New!!: Eta Corvi and Olivine · See more »

Orbital inclination

Orbital inclination measures the tilt of an object's orbit around a celestial body.

New!!: Eta Corvi and Orbital inclination · See more »

Pinyin

Hanyu Pinyin Romanization, often abbreviated to pinyin, is the official romanization system for Standard Chinese in mainland China and to some extent in Taiwan.

New!!: Eta Corvi and Pinyin · See more »

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.

New!!: Eta Corvi and Planetary migration · See more »

Planetesimal

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

New!!: Eta Corvi and Planetesimal · See more »

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.

New!!: Eta Corvi and Poynting–Robertson effect · See more »

PPM Star Catalogue

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

New!!: Eta Corvi and PPM Star Catalogue · See more »

Protoplanetary disk

A protoplanetary disk is a rotating circumstellar disk of dense gas and dust surrounding a young newly formed star, a T Tauri star, or Herbig Ae/Be star.

New!!: Eta Corvi and Protoplanetary disk · See more »

Pyroxene

The pyroxenes (commonly abbreviated to Px) are a group of important rock-forming inosilicate minerals found in many igneous and metamorphic rocks.

New!!: Eta Corvi and Pyroxene · See more »

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.

New!!: Eta Corvi and Russian Academy of Sciences · See more »

Silicon dioxide

Silicon dioxide, also known as silica (from the Latin silex), is an oxide of silicon with the chemical formula, most commonly found in nature as quartz and in various living organisms.

New!!: Eta Corvi and Silicon dioxide · See more »

Smithsonian Astrophysical Observatory Star Catalog

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

New!!: Eta Corvi and Smithsonian Astrophysical Observatory Star Catalog · See more »

Solar System

The Solar SystemCapitalization of the name varies.

New!!: Eta Corvi and Solar System · See more »

Solid

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

New!!: Eta Corvi and Solid · See more »

Spitzer Space Telescope

The Spitzer Space Telescope (SST), formerly the Space Infrared Telescope Facility (SIRTF), is an infrared space telescope launched in 2003 and still operating as of 2018.

New!!: Eta Corvi and Spitzer Space Telescope · See more »

Star

A star is type of astronomical object consisting of a luminous spheroid of plasma held together by its own gravity.

New!!: Eta Corvi and Star · See more »

Star catalogue

A star catalogue (Commonwealth English) or star catalog (American English), is an astronomical catalogue that lists stars.

New!!: Eta Corvi and Star catalogue · See more »

Stellar classification

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

New!!: Eta Corvi and Stellar classification · See more »

Stellar rotation

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

New!!: Eta Corvi and Stellar rotation · See more »

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.

New!!: Eta Corvi and Sternberg Astronomical Institute · See more »

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.

New!!: Eta Corvi and Submillimetre astronomy · See more »

Sulfide minerals

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

New!!: Eta Corvi and Sulfide minerals · See more »

The Astrophysical Journal

The Astrophysical Journal, often abbreviated ApJ (pronounced "ap jay") in references and speech, is a peer-reviewed scientific journal of astrophysics and astronomy, established in 1895 by American astronomers George Ellery Hale and James Edward Keeler.

New!!: Eta Corvi and The Astrophysical Journal · See more »

Thermodynamic equilibrium

Thermodynamic equilibrium is an axiomatic concept of thermodynamics.

New!!: Eta Corvi and Thermodynamic equilibrium · See more »

2018

2018 has been designated as the third International Year of the Reef by the International Coral Reef Initiative.

New!!: Eta Corvi and 2018 · See more »

2019

2019 (MMXIX) will be a common year starting on Tuesday of the Gregorian calendar, the 2019th year of the Common Era (CE) and Anno Domini (AD) designations, the 19th year of the 3rd millennium, the 19th year of the 21st century, and the 10th and last year of the 2010s decade.

New!!: Eta Corvi and 2019 · See more »

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

OutgoingIncoming
Hey! We are on Facebook now! »