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165 relations: A-type main-sequence star, Abell 2061, Abell 2065, Abell 2067, Abell 2142, Abell 2162, Accretion disk, ADS 9731, Algol, Almagest, Alpha Coronae Borealis, Altair, Apparent magnitude, Ariadne, Arianrhod, Astronomical unit, Astronomy Letters, Australian Aboriginal astronomy, B-type main-sequence star, Bayer designation, Be star, Bedouin, Beta Coronae Borealis, Binary star, Boötes, Boomerang, Cadacross, Cataclysmic variable star, Celestial cartography, Circumstellar habitable zone, Classical mythology, Constellation, Constellation family, Corona Australis, Corona Borealis (album), Corona Borealis Supercluster, Crown (headgear), Debris disk, Declination, Delta Coronae Borealis, Delta Scuti variable, Dionysus, Double star, Effective temperature, Elliptical galaxy, Epsilon Coronae Borealis, Equatorial coordinate system, Eta Coronae Borealis, Eugène Joseph Delporte, Exoplanet, ..., Flamsteed designation, G-type main-sequence star, Gaius Julius Hyginus, Galaxy cluster, Gamma Coronae Borealis, Greek mythology, H. P. Lovecraft, Hawaii, HD 145457, Hercules (constellation), Hercules Superclusters, Hertzsprung gap, Hipparcos, Hot Jupiter, Hubble Space Telescope, Hypnos (short story), Ian Ridpath, International Astronomical Union, Iota Coronae Borealis, Johann Bayer, John Flamsteed, Jupiter, Kappa Coronae Borealis, Kepler de Souza Oliveira, Light-year, List of most massive black holes, Luminosity, Mi'kmaq, Micrometre, Minos, Minotaur, Minute and second of arc, Mira variable, Monthly Notices of the Royal Astronomical Society, Mount Olympus, Nanometre, Native Americans in the United States, New Zealand, NGC 6085, NGC 6086, North, North Pole, Northern celestial hemisphere, Nova, Nu Coronae Borealis, Nu1 Coronae Borealis, Nu2 Coronae Borealis, Nuclear chain reaction, Omicron Coronae Borealis, Pi Coronae Borealis, Polynesians, Popular Astronomy (US magazine), Precession (mechanical), Ptolemy, Pukapuka, Pulsating white dwarf, R Coronae Borealis, R Coronae Borealis variable, Radial velocity, Rapidly oscillating Ap star, Red clump, Red dwarf, Red giant, Redshift, Rho Coronae Borealis, Right ascension, RR Coronae Borealis, RS Coronae Borealis, S Coronae Borealis, Semele, Semiregular variable star, Serpens, Shawnee, Sigma Coronae Borealis, Skidi, Sky & Telescope, Solar analog, Solar mass, Solar radius, Southern celestial hemisphere, Spiral galaxy, Star, Stellar classification, Supergiant star, Supermassive black hole, T Coronae Borealis, T Pyxidis, Tau Coronae Borealis, The Astrophysical Journal, Theseus, Theta Coronae Borealis, Tonga, Tuamotus, TY Coronae Borealis, U Coronae Borealis, U Scorpii, Uranometria, Ursa Major Moving Group, UW Coronae Borealis, V Coronae Borealis, Variable star, Vega, W Coronae Borealis, Wardaman people, Welsh mythology, White dwarf, X-ray, XO Telescope, XO-1, XO-1b, Zeta Coronae Borealis, 1,000,000,000, 50th parallel south, 64th parallel south, 88 modern constellations. Expand index (115 more) »
A-type main-sequence star
An A-type main-sequence star (A V) or A dwarf star is a main-sequence (hydrogen-burning) star of spectral type A and luminosity class V. These stars have spectra which are defined by strong hydrogen Balmer absorption lines.
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Abell 2061
Abell 2061 is a galaxy cluster in the constellation of Corona Borealis.
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Abell 2065
Abell 2065 is a highly concentrated galaxy cluster in the constellation of Corona Borealis containing over 400 member galaxies, the brightest of which are 16th magnitude.
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Abell 2067
Abell 2067 is a galaxy cluster in the constellation of Corona Borealis.
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Abell 2142
Abell 2142, or A2142, is a huge, X-ray luminous galaxy cluster in the constellation Corona Borealis.
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Abell 2162
Abell 2162 is a galaxy cluster in the Abell catalogue located in the constellation Corona Borealis.
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Accretion disk
An accretion disk is a structure (often a circumstellar disk) formed by diffused material in orbital motion around a massive central body.
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ADS 9731
ADS 9731 is a star system that consists of six stars.
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Algol
Algol, designated Beta Persei (β Persei, abbreviated Beta Per, β Per), known colloquially as the Demon Star, is a bright multiple star in the constellation of Perseus and one of the first non-nova variable stars to be discovered.
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Almagest
The Almagest is a 2nd-century Greek-language mathematical and astronomical treatise on the apparent motions of the stars and planetary paths, written by Claudius Ptolemy. One of the most influential scientific texts of all time, its geocentric model was accepted for more than 1200 years from its origin in Hellenistic Alexandria, in the medieval Byzantine and Islamic worlds, and in Western Europe through the Middle Ages and early Renaissance until Copernicus.
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Alpha Coronae Borealis
Alpha Coronae Borealis (α Coronae Borealis, abbreviated Alpha CrB, α CrB), also named Alphecca, is a binary star in the constellation of Corona Borealis.
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Altair
Altair, also designated Alpha Aquilae (α Aquilae, abbreviated Alpha Aql, α Aql), is the brightest star in the constellation of Aquila and the twelfth brightest star in the night sky.
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Apparent magnitude
The apparent magnitude of a celestial object is a number that is a measure of its brightness as seen by an observer on Earth.
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Ariadne
Ariadne (Ἀριάδνη; Ariadne), in Greek mythology, was the daughter of Minos—the King of Crete and a son of Zeus—and Pasiphaë—Minos' queen and a daughter of Helios.
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Arianrhod
Arianrhod is a figure in Welsh mythology who plays her most important role in the Fourth Branch of the Mabinogi.
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Astronomical unit
The astronomical unit (symbol: au, ua, or AU) is a unit of length, roughly the distance from Earth to the Sun.
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Astronomy Letters
Astronomy Letters (Russian: Pis’ma v Astronomicheskii Zhurnal) is a Russian peer-reviewed scientific journal.
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Australian Aboriginal astronomy
Australian Aboriginal astronomy is a name given to indigenous Australian culture relating to astronomical subjects – such as the Sun and Moon, the stars, planets, and the Milky Way, and their motions on the sky.
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B-type main-sequence star
A B-type main-sequence star (B V) is a main-sequence (hydrogen-burning) star of spectral type B and luminosity class V. These stars have from 2 to 16 times the mass of the Sun and surface temperatures between 10,000 and 30,000 K. B-type stars are extremely luminous and blue.
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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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Be star
Be Stars are a heterogeneous set of stars with B spectral types and emission lines.
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Bedouin
The Bedouin (badawī) are a grouping of nomadic Arab peoples who have historically inhabited the desert regions in North Africa, the Arabian Peninsula, Iraq and the Levant.
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Beta Coronae Borealis
Beta Coronae Borealis (β Coronae Borealis, abbreviated Beta CrB, β CrB) is a binary star in the constellation of Corona Borealis.
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Binary star
A binary star is a star system consisting of two stars orbiting around their common barycenter.
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Boötes
Boötes is a constellation in the northern sky, located between 0° and +60° declination, and 13 and 16 hours of right ascension on the celestial sphere.
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Boomerang
A boomerang is a thrown tool, typically constructed as a flat airfoil, that is designed to spin about an axis perpendicular to the direction of its flight.
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Cadacross
Cadacross was a Finnish melodic death metal band formed in 1997.
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Cataclysmic variable star
Cataclysmic variable stars (CV) are stars which irregularly increase in brightness by a large factor, then drop back down to a quiescent state.
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Celestial cartography
Celestial cartography, uranography, astrography or star cartography is the fringe of astronomy and branch of cartography concerned with mapping stars, galaxies, and other astronomical objects on the celestial sphere.
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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.
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Classical mythology
Classical Greco-Roman mythology, Greek and Roman mythology or Greco-Roman mythology is both the body of and the study of myths from the ancient Greeks and Romans as they are used or transformed by cultural reception.
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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.
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Constellation family
Constellation families are collections of constellations sharing some defining characteristic, such as proximity on the celestial sphere, common historical origin, or common mythological theme.
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Corona Australis
Corona Australis is a constellation in the Southern Celestial Hemisphere.
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Corona Borealis (album)
Corona Borealis (Northern Crown) is the second and final full-length album by the Finnish melodic death metal band Cadacross.
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Corona Borealis Supercluster
The Corona Borealis Supercluster is a supercluster located in the constellation Corona Borealis and the most prominent example of its kind in the Northern Celestial Hemisphere.
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Crown (headgear)
A crown is a traditional symbolic form of headwear, or hat, worn by a monarch or by a deity, for whom the crown traditionally represents power, legitimacy, victory, triumph, honor, and glory, as well as immortality, righteousness, and resurrection.
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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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Declination
In astronomy, declination (abbreviated dec; symbol δ) is one of the two angles that locate a point on the celestial sphere in the equatorial coordinate system, the other being hour angle.
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Delta Coronae Borealis
Delta Coronae Borealis, Latinized from δ Coronae Borealis, is a star in the constellation Corona Borealis.
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Delta Scuti variable
A Delta Scuti variable (sometimes termed dwarf cepheid) is a variable star which exhibits variations in its luminosity due to both radial and non-radial pulsations of the star's surface.
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Dionysus
Dionysus (Διόνυσος Dionysos) is the god of the grape harvest, winemaking and wine, of ritual madness, fertility, theatre and religious ecstasy in ancient Greek religion and myth.
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Double star
In observational astronomy, a double star or visual double is a pair of stars that appear close to each other in the sky as seen from Earth when viewed through an optical telescope.
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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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Elliptical galaxy
An elliptical galaxy is a type of galaxy having an approximately ellipsoidal shape and a smooth, nearly featureless image.
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Epsilon Coronae Borealis
Epsilon Coronae Borealis, Latinized from ε Coronae Borealis, is a multiple star system in the constellation Corona Borealis located around 230 light-years from the Solar System.
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Equatorial coordinate system
The equatorial coordinate system is a celestial coordinate system widely used to specify the positions of celestial objects.
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Eta Coronae Borealis
Eta Coronae Borealis (η Coronae Borealis, η CrB) is a stellar system that lies approximately 58 light-years away.
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Eugène Joseph Delporte
Eugène Joseph Delporte (10 January 1882 – 19 October 1955) was a Belgian astronomer born in Genappe.
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Exoplanet
An exoplanet or extrasolar planet is a planet outside our solar system.
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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.
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G-type main-sequence star
A G-type main-sequence star (Spectral type: G-V), often (and imprecisely) called a yellow dwarf, or G dwarf star, is a main-sequence star (luminosity class V) of spectral type G. Such a star has about 0.84 to 1.15 solar masses and surface temperature of between 5,300 and 6,000 K., G. M. H. J. Habets and J. R. W. Heintze, Astronomy and Astrophysics Supplement 46 (November 1981), pp.
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Gaius Julius Hyginus
Gaius Julius Hyginus (64 BC – AD 17) was a Latin author, a pupil of the famous Cornelius Alexander Polyhistor, and a freedman of Caesar Augustus.
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Galaxy cluster
A galaxy cluster, or cluster of galaxies, is a structure that consists of anywhere from hundreds to thousands of galaxies that are bound together by gravity with typical masses ranging from 1014–1015 solar masses.
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Gamma Coronae Borealis
Gamma Coronae Borealis, Latinized from γ Coronae Borealis, is a binary star system in the northern constellation of Corona Borealis.
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Greek mythology
Greek mythology is the body of myths and teachings that belong to the ancient Greeks, concerning their gods and heroes, the nature of the world, and the origins and significance of their own cult and ritual practices.
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H. P. Lovecraft
Howard Phillips Lovecraft (August 20, 1890 – March 15, 1937) was an American writer who achieved posthumous fame through his influential works of horror fiction.
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Hawaii
Hawaii (Hawaii) is the 50th and most recent state to have joined the United States, having received statehood on August 21, 1959.
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HD 145457
HD 140913 is a star located in the constellation Corona Borealis (The Northern Crown) around 451 light-years away from Earth.
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Hercules (constellation)
Hercules is a constellation named after Hercules, the Roman mythological hero adapted from the Greek hero Heracles.
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Hercules Superclusters
The Hercules Superclusters (SCl 160) refers to a set of two nearby superclusters of galaxies.
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Hertzsprung gap
The Hertzsprung Gap is a feature of the Hertzsprung–Russell diagram for a star cluster.
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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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Hot Jupiter
Hot Jupiters are a class of gas giant exoplanets that are inferred to be physically similar to Jupiter but that have very short orbital period (P The close proximity to their stars and high surface-atmosphere temperatures resulted in the moniker "hot Jupiters". Hot Jupiters are the easiest extrasolar planets to detect via the radial-velocity method, because the oscillations they induce in their parent stars' motion are relatively large and rapid compared to those of other known types of planets. One of the best-known hot Jupiters is 51 Pegasi b. Discovered in 1995, it was the first extrasolar planet found orbiting a Sun-like star. 51 Pegasi b has an orbital period of about 4 days.
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Hubble Space Telescope
The Hubble Space Telescope (HST) is a space telescope that was launched into low Earth orbit in 1990 and remains in operation.
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Hypnos (short story)
"Hypnos" is a short story by American horror fiction writer H. P. Lovecraft, penned in March 1922 and first published in the May 1923 issue of National Amateur.
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Ian Ridpath
Ian William Ridpath (born 1 May 1947, Ilford, Essex) is an English science writer and broadcaster best known as a popularizer of astronomy and a biographer of constellation history.
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International Astronomical Union
The International Astronomical Union (IAU; Union astronomique internationale, UAI) is an international association of professional astronomers, at the PhD level and beyond, active in professional research and education in astronomy.
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Iota Coronae Borealis
Iota Coronae Borealis, Latinized from ι Coronae Borealis, is a binary star system in the constellation Corona Borealis.
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Johann Bayer
Johann Bayer (1572 – 7 March 1625) was a German lawyer and uranographer (celestial cartographer).
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John Flamsteed
John Flamsteed FRS (19 August 1646 – 31 December 1719) was an English astronomer and the first Astronomer Royal.
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Jupiter
Jupiter is the fifth planet from the Sun and the largest in the Solar System.
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Kappa Coronae Borealis
Kappa Coronae Borealis, Latinized from κ Coronae Borealis, is a star approximately 102 light years away in the constellation of Corona Borealis.
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Kepler de Souza Oliveira
Kepler de Souza Oliveira Filho (born 16 February 1956), also known as S. O. Kepler, is a Brazilian astronomer primarily known for his work on white dwarfs, variable stars, and magnetars.
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Light-year
The light-year is a unit of length used to express astronomical distances and measures about 9.5 trillion kilometres or 5.9 trillion miles.
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List of most massive black holes
This is an ordered list of the most massive black holes so far discovered (and probable candidates), measured in units of solar masses, or the mass of the Sun (approx. kilograms).
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Luminosity
In astronomy, luminosity is the total amount of energy emitted per unit of time by a star, galaxy, or other astronomical object.
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Mi'kmaq
The Mi'kmaq or Mi'gmaq (also Micmac, L'nu, Mi'kmaw or Mi'gmaw) are a First Nations people indigenous to Canada's Atlantic Provinces and the Gaspé Peninsula of Quebec as well as the northeastern region of Maine.
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Micrometre
The micrometre (International spelling as used by the International Bureau of Weights and Measures; SI symbol: μm) or micrometer (American spelling), also commonly known as a micron, is an SI derived unit of length equaling (SI standard prefix "micro-".
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Minos
In Greek mythology, Minos (Μίνως, Minōs) was the first King of Crete, son of Zeus and Europa.
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Minotaur
In Greek mythology, the Minotaur (Μῑνώταυρος, Minotaurus, Etruscan: Θevrumineś) is a mythical creature portrayed in Classical times with the head of a bull and the body of a man or, as described by Roman poet Ovid, a being "part man and part bull".
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Minute and second of arc
A minute of arc, arcminute (arcmin), arc minute, or minute arc is a unit of angular measurement equal to of one degree.
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Mira variable
Mira variables ("Mira", Latin, adj. - feminine form of adjective "wonderful"), named for the prototype star Mira, are a class of pulsating variable stars characterized by very red colours, pulsation periods longer than 100 days, and amplitudes greater than one magnitude in infrared and 2.5 magnitude at visual wavelengths.
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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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Mount Olympus
Mount Olympus (Όλυμπος Olympos, for Modern Greek also transliterated Olimbos, or) is the highest mountain in Greece.
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Nanometre
The nanometre (International spelling as used by the International Bureau of Weights and Measures; SI symbol: nm) or nanometer (American spelling) is a unit of length in the metric system, equal to one billionth (short scale) of a metre (m).
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Native Americans in the United States
Native Americans, also known as American Indians, Indians, Indigenous Americans and other terms, are the indigenous peoples of the United States.
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New Zealand
New Zealand (Aotearoa) is a sovereign island country in the southwestern Pacific Ocean.
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NGC 6085
NGC 6085 is a spiral galaxy in the constellation of Corona Borealis.
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NGC 6086
NGC 6086 is an elliptical galaxy in the constellation of Corona Borealis.
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North
North is one of the four compass points or cardinal directions.
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North Pole
The North Pole, also known as the Geographic North Pole or Terrestrial North Pole, is (subject to the caveats explained below) defined as the point in the Northern Hemisphere where the Earth's axis of rotation meets its surface.
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Northern celestial hemisphere
The Northern Celestial Hemisphere, or the Northern Sky, is the northern half of the celestial sphere; that is, it lies north of the celestial equator.
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Nova
A nova (plural novae or novas) or classical nova (CN, plural CNe) is a transient astronomical event that causes the sudden appearance of a bright, apparently "new" star, that slowly fades over several weeks or many months.
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Nu Coronae Borealis
The Bayer designation ν Coronae Borealis (Nu Coronae Borealis) is an optical pair of stars in the constellation Corona Borealis.
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Nu1 Coronae Borealis
Nu1 Coronae Borealis is a solitary, red-hued star located in the constellation Corona Borealis.
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Nu2 Coronae Borealis
Nu2 Coronae Borealis is a solitary, orange-hued star located in the northern constellation of Corona Borealis.
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Nuclear chain reaction
A nuclear chain reaction occurs when one single nuclear reaction causes an average of one or more subsequent nuclear reactions, thus leading to the possibility of a self-propagating series of these reactions.
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Omicron Coronae Borealis
Omicron Coronae Borealis, Latinized from o Coronae Borealis, is a star in the northern constellation of Corona Borealis.
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Pi Coronae Borealis
Pi Coronae Borealis, Latinized from π Coronae Borealis, is a solitary, orange-hued star in the northern constellation of Corona Borealis.
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Polynesians
The Polynesians are a subset of Austronesians native to the islands of Polynesia that speak the Polynesian languages, a branch of the Oceanic subfamily of the Austronesian language family.
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Popular Astronomy (US magazine)
Popular Astronomy is an American magazine published by John August Media, LLC and hosted at TechnicaCuriosa.com for amateur astronomers.
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Precession (mechanical)
Precession, also called epicyclic fretting precession, (or more accurately hypocyclic fretting precession since "epicyclic" applies to a round part spinning outside a circle and "hypocyclic" applies to a round part spinning inside a circle) is the process of a round part in a round hole rotating with respect to that hole because of clearance between them and a radial force on the part that changes direction.
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Ptolemy
Claudius Ptolemy (Κλαύδιος Πτολεμαῖος, Klaúdios Ptolemaîos; Claudius Ptolemaeus) was a Greco-Roman mathematician, astronomer, geographer, astrologer, and poet of a single epigram in the Greek Anthology.
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Pukapuka
Pukapuka is a coral atoll in the northern group of the Cook Islands in the Pacific Ocean.
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Pulsating white dwarf
A pulsating white dwarf is a white dwarf star whose luminosity varies due to non-radial gravity wave pulsations within itself.
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R Coronae Borealis
R Coronae Borealis is a peculiar low-mass yellow supergiant star in the constellation of Corona Borealis.
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R Coronae Borealis variable
An R Coronae Borealis variable (abbreviated RCB, R CrB) is an eruptive variable star that varies in luminosity in two modes, one low amplitude pulsation (a few tenths of a magnitude), and one irregular, unpredictably-sudden fading by 1 to 9 magnitudes.
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Radial velocity
The radial velocity of an object with respect to a given point is the rate of change of the distance between the object and the point.
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Rapidly oscillating Ap star
Rapidly oscillating Ap stars (roAp stars) are a subtype of the Ap star class that exhibit short-timescale rapid photometric or radial velocity variations.
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Red clump
The red clump is a clustering of red giants in the Hertzsprung–Russell diagram at around 5,000 K and absolute magnitude (MV) +0.5, slightly hotter than most red-giant-branch stars of the same luminosity.
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Red dwarf
A red dwarf (or M dwarf) is a small and relatively cool star on the main sequence, of M spectral type.
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Red giant
A red giant is a luminous giant star of low or intermediate mass (roughly 0.3–8 solar masses) in a late phase of stellar evolution.
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Redshift
In physics, redshift happens when light or other electromagnetic radiation from an object is increased in wavelength, or shifted to the red end of the spectrum.
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Rho Coronae Borealis
Rho Coronae Borealis (ρ CrB, ρ Coronae Borealis) is a Solar twin, yellow dwarf star approximately 57 light-years away in the constellation of Corona Borealis.
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Right ascension
Right ascension (abbreviated RA; symbol) is the angular distance measured only eastward along the celestial equator from the Sun at the March equinox to the (hour circle of the) point above the earth in question.
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RR Coronae Borealis
RR Coronae Borealis (RR CrB, HD 140297, HIP 76844) is a M3-type semiregular variable star located in the constellation Corona Borealis with a parallax of 2.93mas being a distance of.
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RS Coronae Borealis
RS Coronae Borealis is a semiregular variable star located in the constellation Corona Borealis with a parallax of 2.93mas being a distance of.
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S Coronae Borealis
S Coronae Borealis (S CrB) is a Mira variable star in the constellation Corona Borealis.
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Semele
Semele (Σεμέλη Semelē), in Greek mythology, is a daughter of the Boeotian hero Cadmus and Harmonia, and the mother of Dionysus by Zeus in one of his many origin myths.
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Semiregular variable star
Semiregular variable stars are giants or supergiants of intermediate and late spectral type showing considerable periodicity in their light changes, accompanied or sometimes interrupted by various irregularities.
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Serpens
Serpens ("the Serpent", Greek Ὄφις) is a constellation of the northern hemisphere.
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Shawnee
The Shawnee (Shaawanwaki, Ša˙wano˙ki and Shaawanowi lenaweeki) are an Algonquian-speaking ethnic group indigenous to North America. In colonial times they were a semi-migratory Native American nation, primarily inhabiting areas of the Ohio Valley, extending from what became Ohio and Kentucky eastward to West Virginia, Virginia, Pennsylvania, and Western Maryland; south to Alabama and South Carolina; and westward to Indiana, and Illinois. Pushed west by European-American pressure, the Shawnee migrated to Missouri and Kansas, with some removed to Indian Territory (Oklahoma) west of the Mississippi River in the 1830s. Other Shawnee did not remove to Oklahoma until after the Civil War. Made up of different historical and kinship groups, today there are three federally recognized Shawnee tribes, all headquartered in Oklahoma: the Absentee-Shawnee Tribe of Indians of Oklahoma, Eastern Shawnee Tribe of Oklahoma, and Shawnee Tribe.
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Sigma Coronae Borealis
No description.
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Skidi
The Skidi or Skiri, also known as the Wolf Pawnee or the French Loup Pawnee, are a band of Pawnee people.
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Sky & Telescope
Sky & Telescope (S&T) is a monthly American magazine covering all aspects of amateur astronomy, including the following.
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Solar analog
Solar-type star, solar analogs (also analogues), and solar twins are stars that are particularly similar to the Sun.
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Solar mass
The solar mass is a standard unit of mass in astronomy, equal to approximately.
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Solar radius
Solar radius is a unit of distance used to express the size of stars in astronomy.
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Southern celestial hemisphere
The Southern Celestial Hemisphere, or the Southern Sky, is the southern half of the celestial sphere, which appears to rotate around a polar axis due to Earth's rotation.
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Spiral galaxy
Spiral galaxies form a class of galaxy originally described by Edwin Hubble in his 1936 work The Realm of the Nebulae(pp. 124–151) and, as such, form part of the Hubble sequence.
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Star
A star is type of astronomical object consisting of a luminous spheroid of plasma held together by its own gravity.
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Stellar classification
In astronomy, stellar classification is the classification of stars based on their spectral characteristics.
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Supergiant star
Supergiants are among the most massive and most luminous stars.
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Supermassive black hole
A supermassive black hole (SMBH or SBH) is the largest type of black hole, on the order of hundreds of thousands to billions of solar masses, and is found in the centre of almost all currently known massive galaxies.
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T Coronae Borealis
T Coronae Borealis (T CrB), is a recurring nova in the constellation Corona Borealis.
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T Pyxidis
T Pyxidis (T Pyx) is a recurrent nova and nova remnant in the constellation Pyxis.
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Tau Coronae Borealis
Tau Coronae Borealis, Latinized from τ Coronae Borealis, is a probable astrometric binary star system in the northern constellation of Corona Borealis.
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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 and astronomy, established in 1895 by American astronomers George Ellery Hale and James Edward Keeler.
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Theseus
Theseus (Θησεύς) was the mythical king and founder-hero of Athens.
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Theta Coronae Borealis
Theta Coronae Borealis, Latinized from θ Coronae Borealis, is a binary star system in the constellation Corona Borealis.
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Tonga
Tonga (Tongan: Puleʻanga Fakatuʻi ʻo Tonga), officially the Kingdom of Tonga, is a Polynesian sovereign state and archipelago comprising 169 islands, of which 36 are inhabited.
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Tuamotus
The Tuamotus, also referred to in English as the Tuamotu Archipelago or the Tuamotu Islands (Îles Tuamotu, officially Archipel des Tuamotu), are a French Polynesian chain of almost 80 islands and atolls forming the largest chain of atolls in the world.
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TY Coronae Borealis
TY Coronae Borealis, also known as Ross 808, is a variable white dwarf star of the DAV (or ZZ Ceti) type in the constellation Corona Borealis.
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U Coronae Borealis
U Coronae Borealis (U CrB) is an Algol-type eclipsing binary star system in the constellation Corona Borealis.
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U Scorpii
U Scorpii (U Sco) is a recurrent nova system; one of 10 known recurring novae in the Milky Way galaxy.
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Uranometria
Uranometria is the short title of a star atlas produced by Johann Bayer.
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Ursa Major Moving Group
The Ursa Major Moving Group, also known as Collinder 285 and the Ursa Major association, is a nearby stellar moving group – a set of stars with common velocities in space and thought to have a common origin in space and time.
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UW Coronae Borealis
UW Coronae Borealis, also known as MS 1603.6+2600, is a low-mass X-ray binary star system in the constellation Corona Borealis.
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V Coronae Borealis
V Coronae Borealis (V CrB) is a Mira-type long period variable star and carbon star in the constellation Corona Borealis.
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Variable star
A variable star is a star whose brightness as seen from Earth (its apparent magnitude) fluctuates.
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Vega
Vega, also designated Alpha Lyrae (α Lyrae, abbreviated Alpha Lyr or α Lyr), is the brightest star in the constellation of Lyra, the fifth-brightest star in the night sky, and the second-brightest star in the northern celestial hemisphere, after Arcturus.
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W Coronae Borealis
W Coronae Borealis (W CrB) is a Mira-type long period variable star in the constellation Corona Borealis.
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Wardaman people
The Wardaman people are a small group of Indigenous Australians living about 145 km South-West of Katherine on Menngen Aboriginal Land Trust in the Northern Territory of Australia.
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Welsh mythology
Welsh mythology consists of both folk traditions developed in Wales, and traditions developed by the Celtic Britons elsewhere before the end of the first millennium.
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White dwarf
A white dwarf, also called a degenerate dwarf, is a stellar core remnant composed mostly of electron-degenerate matter.
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X-ray
X-rays make up X-radiation, a form of electromagnetic radiation.
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XO Telescope
The XO Telescope is a telescope located on the 3,054 m summit of Haleakala on Maui, Hawaii, formed by a pair of 200 mm telephoto lenses.
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XO-1
XO-1 is a magnitude 11 G-type main-sequence star star located approximately 536 light-years away in the constellation Corona Borealis.
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XO-1b
No description.
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Zeta Coronae Borealis
ζ Coronae Borealis, Latinised as Zeta Coronae Borealis, is the Bayer designation of a double star in the constellation Corona Borealis.
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1,000,000,000
1,000,000,000 (one billion, short scale; one thousand million or milliard, yard, long scale) is the natural number following 999,999,999 and preceding 1,000,000,001.
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50th parallel south
The 50th parallel south is a circle of latitude that is 50 degrees south of the Earth's equatorial plane.
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64th parallel south
The 64th parallel south is a circle of latitude that is 64 degrees south of the Earth's equatorial plane.
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88 modern constellations
In modern astronomy, the sky (celestial sphere) is divided into 88 regions called constellations, generally based on the asterisms (which are also called "constellations") of Greek and Roman mythology.
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Redirects here:
Corona Borealis (constellation), Corona Borealis constellation, CrB, Northern Crown, RX J1532.9+3021.
References
[1] https://en.wikipedia.org/wiki/Corona_Borealis
