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213 relations: Ancient Greek, Ap and Bp stars, Apparent magnitude, Aratus, Arcas, Arcturus, Asterism (astronomy), Asteroseismology, Astrometry, Astronomical spectroscopy, Astronomical unit, Astronomy & Astrophysics, B-type main-sequence star, Babylon, Beta Boötis, Big Dipper, Binary star, BL Boötis, Boötes void, Caldwell catalogue, Callisto (mythology), Canes Venatici, Canis Major, Canis Minor, Capella, Carbon monoxide, Celestial equator, Celestial sphere, Centre de données astronomiques de Strasbourg, Cepheid variable, Chinese astronomy, Coma Berenices, Comet, Comet Encke, Constellation, Constellation family, Corona Borealis, Culmination, Declination, Delta Boötis, Delta Scuti, Delta Scuti variable, Demeter, Diana (mythology), Dionysus, Doppler spectroscopy, Double star, Draco (constellation), Dust lane, Dwarf star, ..., Ejecta, Enlil, Epsilon Boötis, Equatorial coordinate system, Erigone (daughter of Icarius), Eta Boötis, Eugène Joseph Delporte, Exoplanet, F-type main-sequence star, Foreleg of ox, Former constellations, Gaius Julius Hyginus, Galaxy, Gamma Boötis, Germanicus, Giant star, GJ 526, Globular cluster, Greek alphabet, Greek mythology, H II region, Halberd, Halley's Comet, HAT-P-4, HAT-P-4b, HD 125351, HD 128311, HD 128311 b, HD 128311 c, HD 132406, HD 132406 b, HD 132563, HD 136418 b, Hera, Hercules (constellation), Hercules–Corona Borealis Great Wall, Herder, Homer, Hot Jupiter, Hubble sequence, Icarius, International Astronomical Union, Iota Boötis, Jérôme Lalande, Johann Bayer, Johann Elert Bode, Johannes Hevelius, John Flamsteed, June Bootids, Jupiter mass, Kappa Boötis, Lambda Boötis, Light-year, List of brightest stars, Lithium, Lycaon (Arcadia), Maera (hound), Main sequence, Mainalo, Metallicity, Methods of detecting exoplanets, Milky Way, Minute and second of arc, Mons Maenalus, Monthly Notices of the Royal Astronomical Society, Mu Boötis, NGC 5248, NGC 5466, NGC 5548, NGC 5653, NGC 5676, NGC 5886, Nicole-Reine Lepaute, North Pole, Nova, Nu Boötis, Odyssey, Omega Boötis, Omicron Boötis, Open cluster, Orbital eccentricity, Pan (god), Parsec, Peloponnese, Peter Jenniskens, Phi Boötis, Philomelus, Pi Boötis, Plough, Plutus, Ptolemy, Quadrans Muralis, Quadrant (instrument), Quadrantids, R Boötis, Radial velocity, Radiant (meteor shower), Rho Boötis, Right ascension, Robert Kirshner, RR Lyrae, S Boötis, Semiregular variable star, Serpens, Seyfert galaxy, Shapley–Sawyer Concentration Class, Sigma Boötis, SN 2005bc, Solar luminosity, Solar mass, Solar radius, Spiral galaxy, Star cluster, Star system, Stellar classification, Sun, Supercluster, Surface brightness, T Boötis, Tau Boötis, Tau Boötis b, Taurids, Theta Boötis, Tidal locking, Transit (astronomy), Upsilon Boötis, Uranometria, Ursa Major, Ursa Minor, Variable star, Vega, Virginia, Virgo (constellation), Virgo Cluster, W Ursae Majoris variable, WASP-14, WASP-14b, Xi Boötis, Yellow giant, Yup'ik, Zenithal hourly rate, Zeta Boötis, Zeus, ZZ Boötis, (196256) 2003 EH1, 1 Boötis, 11 Boötis, 12 Boötis, 1490 Ch'ing-yang event, 1620 Geographos, 2 Boötis, 20 Boötis, 2062 Aten, 31 Boötis, 34 Boötis, 44 Boötis, 45 Boötis, 50th parallel south, 6 Boötis, 73P/Schwassmann–Wachmann, 7P/Pons–Winnecke, 88 modern constellations, 9 Boötis. Expand index (163 more) »
Ancient Greek
The Ancient Greek language includes the forms of Greek used in ancient Greece and the ancient world from around the 9th century BC to the 6th century AD.
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Ap and Bp stars
Ap and Bp stars are chemically peculiar stars (hence the "p") of types A and B which show overabundances of some metals, such as strontium, chromium and europium.
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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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Aratus
Aratus (Ἄρατος ὁ Σολεύς; ca. 315 BC/310 BC240) was a Greek didactic poet.
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Arcas
In Greek mythology, Arcas (Ἀρκάς) was a hunter who became king of Arcadia.
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Arcturus
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Asterism (astronomy)
In observational astronomy, an asterism is a popular known pattern or group of stars that are recognised in the night sky.
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Asteroseismology
Asteroseismology or astroseismology is the study of oscillations in stars.
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Astrometry
Astrometry is the branch of astronomy that involves precise measurements of the positions and movements of stars and other celestial bodies.
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Astronomical spectroscopy
Astronomical spectroscopy is the study of astronomy using the techniques of spectroscopy to measure the spectrum of electromagnetic radiation, including visible light and radio, which radiates from stars and other celestial objects.
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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 & Astrophysics
Astronomy & Astrophysics is a peer-reviewed scientific journal covering theoretical, observational, and instrumental astronomy and astrophysics.
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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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Babylon
Babylon (KA2.DIĜIR.RAKI Bābili(m); Aramaic: בבל, Babel; بَابِل, Bābil; בָּבֶל, Bavel; ܒܒܠ, Bāwēl) was a key kingdom in ancient Mesopotamia from the 18th to 6th centuries BC.
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Beta Boötis
Beta Boötis (β Boötis, abbreviated Beta Boo, β Boo), also named Nekkar, is a star in the northern constellation of Boötes.
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Big Dipper
The Big Dipper (US) or the Plough (UK) is an asterism consisting of seven bright stars of the constellation Ursa Major; six of them are of second magnitude and one, Megrez (δ), of third magnitude.
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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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BL Boötis
BL Boötis (abbreviated to BL Boo) is a pulsating variable star in the constellation Boötes.
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Boötes void
The Boötes void (or the Great Void) is an enormous, approximately spherically-shaped region of space, containing very few galaxies.
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Caldwell catalogue
The Caldwell Catalogue is an astronomical catalogue of 109 star clusters, nebulae, and galaxies for observation by amateur astronomers.
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Callisto (mythology)
In Greek mythology, Callisto or Kallisto (Καλλιστώ) was a nymph, or the daughter of King Lycaon; the myth varies in such details.
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Canes Venatici
Canes Venatici is one of the 88 official modern constellations.
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Canis Major
Canis Major is a constellation in the southern celestial hemisphere.
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Canis Minor
Canis Minor is a small constellation in the northern celestial hemisphere.
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Capella
Capella, also designated Alpha Aurigae (α Aurigae, abbreviated Alpha Aur, α Aur), is the brightest star in the constellation of Auriga, the sixth-brightest in the night sky, and the third-brightest in the northern celestial hemisphere after Arcturus and Vega.
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Carbon monoxide
Carbon monoxide (CO) is a colorless, odorless, and tasteless gas that is slightly less dense than air.
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Celestial equator
The celestial equator is the great circle of the imaginary celestial sphere on the same plane as the equator of Earth.
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Celestial sphere
In astronomy and navigation, the celestial sphere is an abstract sphere with an arbitrarily large radius concentric to Earth.
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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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Cepheid variable
A Cepheid variable is a type of star that pulsates radially, varying in both diameter and temperature and producing changes in brightness with a well-defined stable period and amplitude.
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Chinese astronomy
Astronomy in China has a long history, beginning from the Shang Dynasty (Chinese Bronze Age).
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Coma Berenices
Coma Berenices is an ancient asterism in the northern sky which has been defined as one of the 88 modern constellations.
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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.
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Comet Encke
Comet Encke or Encke's Comet (official designation: 2P/Encke) is a periodic comet that completes an orbit of the Sun once every 3.3 years.
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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 Borealis
Corona Borealis is a small constellation in the Northern Celestial Hemisphere.
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Culmination
In astronomy, the culmination of a planet, star, or constellation is its transit over an observer's meridian.
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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 Boötis
Delta Boötis (δ Boo, δ Boötis) is a double star in the northern constellation Boötes.
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Delta Scuti
Delta Scuti (δ Sct, δ Scuti) is a giant star in the southern constellation Scutum.
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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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Demeter
In ancient Greek religion and mythology, Demeter (Attic: Δημήτηρ Dēmḗtēr,; Doric: Δαμάτηρ Dāmā́tēr) is the goddess of the grain, agriculture, harvest, growth, and nourishment, who presided over grains and the fertility of the earth.
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Diana (mythology)
Diana (Classical Latin) was the goddess of the hunt, the moon, and nature in Roman mythology, associated with wild animals and woodland, and having the power to talk to and control animals.
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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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Doppler spectroscopy
Doppler spectroscopy (also known as the radial-velocity method, or colloquially, the wobble method) is an indirect method for finding extrasolar planets and brown dwarfs from radial-velocity measurements via observation of Doppler shifts in the spectrum of the planet's parent star.
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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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Draco (constellation)
Draco is a constellation in the far northern sky.
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Dust lane
A dust lane is a relatively dense obscuring band of interstellar dust, observed as a dark swath against the background of a brighter object, especially a galaxy.
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Dwarf star
A dwarf star is a star of relatively small size and low luminosity.
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Ejecta
Ejecta (from the Latin: "things thrown out", singular ejectum) are particles ejected from an area.
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Enlil
Enlil, later known as Elil, was the ancient Mesopotamian god of wind, air, earth, and storms.
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Epsilon Boötis
Epsilon Boötis (ε Boötis, abbreviated Epsilon Boo, ε Boo), also named Izar, is a binary star in the northern constellation of Boötes.
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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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Erigone (daughter of Icarius)
In Greek mythology, Erigone (Ἠριγόνη) was the daughter of Icarius of Athens.
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Eta Boötis
Eta Boötis (η Boötis, abbreviated Eta Boo, η Boo) is a binary star in the constellation of Boötes.
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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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F-type main-sequence star
An F-type main-sequence star (F V) is a main-sequence, hydrogen-fusing star of spectral type F and luminosity class V. These stars have from 1.0 to 1.4 times the mass of the Sun and surface temperatures between 6,000 and 7,600 K.Tables VII and VIII.
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Foreleg of ox
The foreleg of ox (a foreleg with the thigh) hieroglyph of Ancient Egypt is an old hieroglyph; it even represented a nighttime constellation (the Big Dipper, Maskheti).
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Former constellations
Former constellations are old historical Western constellations that for various reasons are no longer recognized or adopted as official constellations by the International Astronomical Union (IAU).
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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
A galaxy is a gravitationally bound system of stars, stellar remnants, interstellar gas, dust, and dark matter.
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Gamma Boötis
Gamma Boötis (γ Boötis, abbreviated Gamma Boo, γ Boo), also named Seginus, is a star in the constellation of Boötes.
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Germanicus
Germanicus (Latin: Germanicus Julius Caesar; 24 May 15 BC – 10 October AD 19) was a member of the Julio-Claudian dynasty and a prominent general of the Roman Empire, who was known for his campaigns in Germania.
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Giant star
A giant star is a star with substantially larger radius and luminosity than a main-sequence (or dwarf) star of the same surface temperature.
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GJ 526
GJ 526 (Lalande 25372, Wolf 498) is a red dwarf star in the northern constellation of Boötes.
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Globular cluster
A globular cluster is a spherical collection of stars that orbits a galactic core as a satellite.
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Greek alphabet
The Greek alphabet has been used to write the Greek language since the late 9th or early 8th century BC.
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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 II region
An H II region or HII region is a region of interstellar atomic hydrogen that is ionized.
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Halberd
A halberd (also called halbard, halbert or Swiss voulge) is a two-handed pole weapon that came to prominent use during the 14th and 15th centuries.
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Halley's Comet
Halley's Comet or Comet Halley, officially designated 1P/Halley, is a short-period comet visible from Earth every 74–79 years.
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HAT-P-4
HAT-P-4 is a F9-type main-sequence star in the constellation of Boötes.
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HAT-P-4b
No description.
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HD 125351
HD 125351 or A Boötis (A Boo) is spectroscopic binary in the constellation Boötes.
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HD 128311
HD 128311 or HN Boötis is an orange main-sequence star located approximately 54 light-years away in the constellation of Boötes.
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HD 128311 b
HD 128311 b is an exoplanet located approximately 54 light-years away in the constellation of Boötes.
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HD 128311 c
HD 128311 c is an exoplanet located approximately 54 light-years away in the constellation of Boötes.
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HD 132406
HD 132406 is a star in Boötes constellation.
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HD 132406 b
HD 132406 b is a long period massive gas giant extrasolar planet orbiting the Sun-like star HD 132406.
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HD 132563
HD 132563 is a triple star system in the constellation Boötes.
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HD 136418 b
HD 136418 b is an extrasolar planet orbiting the G-type star HD 136418 approximately 320 light years away in the constellation Boötes It has a notable orbit, staying within the known Habitable zone.
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Hera
Hera (Ἥρᾱ, Hērā; Ἥρη, Hērē in Ionic and Homeric Greek) is the goddess of women, marriage, family, and childbirth in Ancient Greek religion and myth, one of the Twelve Olympians and the sister-wife of Zeus.
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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–Corona Borealis Great Wall
Hercules–Corona Borealis Great Wall or the Great GRB Wall.
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Herder
A herder is a worker who lives a possibly semi-nomadic life, caring for various domestic animals, in places where these animals wander pasture lands.
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Homer
Homer (Ὅμηρος, Hómēros) is the name ascribed by the ancient Greeks to the legendary author of the Iliad and the Odyssey, two epic poems that are the central works of ancient Greek literature.
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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 sequence
The Hubble sequence is a morphological classification scheme for galaxies invented by Edwin Hubble in 1926.
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Icarius
In Greek mythology, there were two people named Icarius (Ἰκάριος Ikários).
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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 Boötis
Iota Boötis (ι Boo, ι Boötis) is a star system in the constellation Boötes.
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Jérôme Lalande
Joseph Jérôme Lefrançois de Lalande (11 July 1732 – 4 April 1807) was a French astronomer, freemason and writer.
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Johann Bayer
Johann Bayer (1572 – 7 March 1625) was a German lawyer and uranographer (celestial cartographer).
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Johann Elert Bode
Johann Elert Bode (19 January 1747 – 23 November 1826) was a German astronomer known for his reformulation and popularisation of the Titius–Bode law.
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Johannes Hevelius
Johannes Hevelius Some sources refer to Hevelius as Polish.
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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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June Bootids
The June Boötids are a meteor shower occurring roughly between 26 June and 2 July each year.
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Jupiter mass
Jupiter mass, also called Jovian mass is the unit of mass equal to the total mass of the planet Jupiter.
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Kappa Boötis
Kappa Boötis (κ Boo, κ Boötis) is a double star in the constellation Boötes.
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Lambda Boötis
Lambda Boötis (λ Boötis, abbreviated Lam Boo, λ Boo), also named Xuange, is a star in the northern constellation of Boötes.
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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 brightest stars
This is a list of the brightest naked eye stars to +2.50 magnitude, as determined by their maximum, total, or combined apparent visual magnitudes as seen from Earth.
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Lithium
Lithium (from lit) is a chemical element with symbol Li and atomic number 3.
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Lycaon (Arcadia)
In Greek mythology, Lycaon (/laɪˈkeɪɒn/; Greek: Λυκάων) was a king of Arcadia, son of Pelasgus and Meliboea, who, in the most popular version of the myth, tested Zeus' omniscience by serving him the roasted flesh of Lycaon's own son Nyctimus, in order to see whether Zeus was truly all-knowing.
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Maera (hound)
In Greek mythology, Maera was the hound of Erigone, daughter of Icarius of Athens.
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Main sequence
In astronomy, the main sequence is a continuous and distinctive band of stars that appear on plots of stellar color versus brightness.
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Mainalo
Mainalo (Modern Greek: Μαίναλο, Ancient Greek: Μαίναλος or Μαίναλον - Mainalos or Mainalon; Latin: Mænalus), also known as Menalon,, is a mountain range in Arcadia, Greece, the tallest of which is called by the same name, all named after the mythological Maenalus, son of Lycaon.
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Metallicity
In astronomy, metallicity is used to describe the abundance of elements present in an object that are heavier than hydrogen or helium.
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Methods of detecting exoplanets
Any planet is an extremely faint light source compared to its parent star.
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Milky Way
The Milky Way is the galaxy that contains our Solar System.
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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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Mons Maenalus
Mons Maenalus (Latin for Mount Maenalus) was a constellation created by Johannes Hevelius in 1687.
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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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Mu Boötis
Mu Boötis, Latinized from μ Boötis, consists of a pair of double stars in the northern constellation of Boötes.
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NGC 5248
NGC 5248 (also known as Caldwell 45) is a compact intermediate spiral galaxy about 59 million light-years away in the constellation Boötes.
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NGC 5466
NGC 5466 is a class XII globular cluster in the constellation Boötes.
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NGC 5548
NGC 5548 is a Type I Seyfert galaxy with a bright, active nucleus.
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NGC 5653
NGC 5653 is a spiral galaxy in the constellation Boötes.
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NGC 5676
NGC 5676 is an unbarred spiral galaxy in the constellation Boötes.
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NGC 5886
NGC 5886 NED, (accessed 20-03-2012) (alternatively named ZWG 221.36) is an +14 magnitude elliptical galaxy in the constellation Boötes.
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Nicole-Reine Lepaute
Nicole-Reine Lepaute (née Étable de la Briere; also known as Hartense Lepaute or Hortense Lepaute), (5 January 1723 – 6 December 1788) was a French astronomer and mathematician.
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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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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 Boötis
The Bayer designation Nu Boötis (ν Boo / ν Boötis) is shared by two star systems, in the constellation Boötes.
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Odyssey
The Odyssey (Ὀδύσσεια Odýsseia, in Classical Attic) is one of two major ancient Greek epic poems attributed to Homer.
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Omega Boötis
Omega Boötis (ω Boötis) is the Bayer designation for a solitary, orange-hued star in the northern constellation of Boötes.
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Omicron Boötis
Omicron Boötis (ο Boötis) is a yellow-hued star in the northern constellation of Boötes.
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Open cluster
An open cluster is a group of up to a few thousand stars that were formed from the same giant molecular cloud and have roughly the same age.
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Orbital eccentricity
The orbital eccentricity of an astronomical object is a parameter that determines the amount by which its orbit around another body deviates from a perfect circle.
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Pan (god)
In ancient Greek religion and mythology, Pan (Πάν, Pan) is the god of the wild, shepherds and flocks, nature of mountain wilds, rustic music and impromptus, and companion of the nymphs.
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Parsec
The parsec (symbol: pc) is a unit of length used to measure large distances to astronomical objects outside the Solar System.
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Peloponnese
The Peloponnese or Peloponnesus (Πελοπόννησος, Peloponnisos) is a peninsula and geographic region in southern Greece.
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Peter Jenniskens
Petrus Matheus Marie (Peter) Jenniskens (born 2 August 1962 in Horst) is a Dutch and American astronomer and a senior research scientist at the Carl Sagan Center of the SETI Institute and at NASA Ames Research Center.
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Phi Boötis
Phi Boötis (φ Boötis) is a single, yellow-hued star in the northern constellation of Boötes.
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Philomelus
Philomelus (Φιλόμηλος) or Philomenus was a minor Greek demi-god, patron of Husbandry, Tillage/Ploughing and Agriculture, the son of Demeter and Iasion, and the brother of Plutus.
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Pi Boötis
Pi Boötis, Latinized from π Boötis, is a probable triple star system in the northern constellation of Boötes.
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Plough
A plough (UK) or plow (US; both) is a tool or farm implement used in farming for initial cultivation of soil in preparation for sowing seed or planting to loosen or turn the soil.
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Plutus
Plutus (Πλοῦτος, Ploutos, literally "wealth") was the god of wealth in ancient Greek religion and myth.
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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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Quadrans Muralis
Quadrans Muralis (Latin for mural quadrant) was a constellation created by the French astronomer Jérôme Lalande in 1795.
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Quadrant (instrument)
A quadrant is an instrument that is used to measure angles up to 90°.
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Quadrantids
The Quadrantids (QUA) are a January meteor shower.
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R Boötis
R Boötis is a Mira variable in the constellation Boötes.
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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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Radiant (meteor shower)
The radiant or apparent radiant of a meteor shower is the point in the sky from which (to a planetary observer) meteors appear to originate.
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Rho Boötis
Rho Boötis, Latinized from ρ Boötis, is a single, orange-hued star in the northern constellation of Boötes.
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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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Robert Kirshner
Robert P. Kirshner (born August 15, 1949) is an American astronomer, currently the Clowes Professor of Science at Harvard University.
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RR Lyrae
RR Lyrae is a variable star in the Lyra constellation, located near the border with the neighboring constellation of Cygnus.
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S Boötis
S Boötis is a Mira variable in the constellation Boötes.
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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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Seyfert galaxy
Seyfert galaxies are one of the two largest groups of active galaxies, along with quasars.
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Shapley–Sawyer Concentration Class
The Shapley–Sawyer Concentration Class is a classification system on a scale of one to twelve using Roman numerals for globular clusters according to their concentration.
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Sigma Boötis
Sigma Boötis (σ Boo, σ Boötis) is a star in the constellation Boötes.
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SN 2005bc
SN 2005bc was a Type Ia supernova occurring in the Barred spiral galaxy NGC 5698 in the constellation of Boötes.
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Solar luminosity
The solar luminosity,, is a unit of radiant flux (power emitted in the form of photons) conventionally used by astronomers to measure the luminosity of stars, galaxies and other celestial objects in terms of the output of 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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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 cluster
Star clusters are groups of stars.
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Star system
A star system or stellar system is a small number of stars that orbit each other, bound by gravitational attraction.
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Stellar classification
In astronomy, stellar classification is the classification of stars based on their spectral characteristics.
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Sun
The Sun is the star at the center of the Solar System.
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Supercluster
A supercluster is a large group of smaller galaxy clusters or galaxy groups; it is among the largest-known structures of the cosmos.
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Surface brightness
In astronomy, surface brightness quantifies the apparent brightness or flux density per unit angular area of a spatially extended object such as a galaxy or nebula, or of the night sky background.
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T Boötis
T Boötis is believed to have been a nova.
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Tau Boötis
Tau Boötis, Latinized from τ Boötis, is an F-type main-sequence star approximately 51 light-years away in the constellation of Boötes.
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Tau Boötis b
No description.
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Taurids
The Taurids are an annual meteor shower, associated with the comet Encke.
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Theta Boötis
Theta Boötis (θ Boo, θ Boötis) is a star in the constellation Boötes.
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Tidal locking
Tidal locking (also called gravitational locking or captured rotation) occurs when the long-term interaction between a pair of co-orbiting astronomical bodies drives the rotation rate of at least one of them into the state where there is no more net transfer of angular momentum between this body (e.g. a planet) and its orbit around the second body (e.g. a star); this condition of "no net transfer" must be satisfied over the course of one orbit around the second body.
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Transit (astronomy)
In astronomy, a transit or astronomical transit is the phenomenon of at least one celestial body appearing to move across the face of another celestial body, hiding a small part of it, as seen by an observer at some particular vantage point.
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Upsilon Boötis
Upsilon Boötis (υ Boötis) is a single, orange-hued star in the northern constellation of Boötes.
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Uranometria
Uranometria is the short title of a star atlas produced by Johann Bayer.
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Ursa Major
Ursa Major (also known as the Great Bear) is a constellation in the northern sky, whose associated mythology likely dates back into prehistory.
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Ursa Minor
Ursa Minor (Latin: "Lesser Bear", contrasting with Ursa Major), also known as the Little Bear, is a constellation in the Northern Sky.
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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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Virginia
Virginia (officially the Commonwealth of Virginia) is a state in the Southeastern and Mid-Atlantic regions of the United States located between the Atlantic Coast and the Appalachian Mountains.
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Virgo (constellation)
Virgo is one of the constellations of the zodiac.
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Virgo Cluster
The Virgo Cluster is a cluster of galaxies whose center is 53.8 ± 0.3 Mly (16.5 ± 0.1 Mpc) away in the constellation Virgo.
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W Ursae Majoris variable
A W Ursae Majoris variable, also known as a low mass contact binary, is a type of eclipsing binary variable star.
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WASP-14
WASP-14 or BD+22 2716 is a star in the constellation Boötes.
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WASP-14b
WASP-14b is an extrasolar planet discovered in 2008 by SuperWASP using the transit method.
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Xi Boötis
Xi Boötis (ξ Boo, ξ Boötis) is a binary star system 22 light years away from Earth.
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Yellow giant
A yellow giant is a luminous giant star of low or intermediate mass (roughly 0.5–11 solar masses (M)) in a late phase of its stellar evolution.
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Yup'ik
The Yup'ik or Yupiaq (sg & pl) and Yupiit or Yupiat (pl), also Central Alaskan Yup'ik, Central Yup'ik, Alaskan Yup'ik (own name Yup'ik sg Yupiik dual Yupiit pl), are an Eskimo people of western and southwestern Alaska ranging from southern Norton Sound southwards along the coast of the Bering Sea on the Yukon-Kuskokwim Delta (including living on Nelson and Nunivak Islands) and along the northern coast of Bristol Bay as far east as Nushagak Bay and the northern Alaska Peninsula at Naknek River and Egegik Bay.
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Zenithal hourly rate
In astronomy, the zenithal hourly rate (ZHR) of a meteor shower is the number of meteors a single observer would see in an hour of peak activity, assumed the conditions are excellent (stars visible up to magnitude 6,5).
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Zeta Boötis
Zeta Boötis, Latinized as ζ Boötis, is a binary star system in the constellation of Boötes that consists of two giant stars with matching stellar classifications of A2III.
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Zeus
Zeus (Ζεύς, Zeús) is the sky and thunder god in ancient Greek religion, who rules as king of the gods of Mount Olympus.
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ZZ Boötis
ZZ Boötis is a star system in the constellation Boötes.
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(196256) 2003 EH1
is an asteroid, classified as near-Earth object of the Amor group.
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1 Boötis
1 Boötis (1 Boo) is a binary star at 327 light years away.
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11 Boötis
11 Boötis (abbr.: 11 Boo) is a blue-white giant star in the constellation Boötes.
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12 Boötis
12 Boötis is a spectroscopic binary in the constellation Boötes.
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1490 Ch'ing-yang event
The Ch'ing-yang event of 1490 (also Ch'ing-yang, Chi-ing-yang or Chíing-yang meteor shower) is a presumed meteor shower or air burst in Qìngyáng (Ch'ing-Yang) in March or April 1490.
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1620 Geographos
1620 Geographos, provisional designation, is a highly elongated, stony asteroid, near-Earth object and potentially hazardous asteroid of the Apollo group, with a mean-diameter of approximately 2.5 kilometers.
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2 Boötis
2 Boötis (2 Boo, 2 Bootis) is a star in the constellation Boötes.
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20 Boötis
20 Boötis is a star in the constellation Boötes.
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2062 Aten
2062 Aten, provisional designation, is a stony sub-kilometer asteroid and namesake of the Aten asteroids, a subgroup of near-Earth objects.
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31 Boötis
31 Boötis is a star in the constellation Boötes.
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34 Boötis
34 Boötis or W Boötis is a star in the constellation Boötes.
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44 Boötis
44 Boötis or i Boötis is a triple star system in the constellation Boötes.
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45 Boötis
45 Boötis or c Boötis is a binary star in the constellation Boötes.
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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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6 Boötis
6 Boötis or e Boötis is a star in the constellation Boötes.
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73P/Schwassmann–Wachmann
73P/Schwassmann–Wachmann, also known as Schwassmann–Wachmann 3, is a periodic comet in the Solar System that is in the process of disintegrating.
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7P/Pons–Winnecke
7P/Pons–Winnecke (also known as Comet Pons–Winnecke) is a periodic Jupiter-family comet in the solar system.
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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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9 Boötis
9 Boötis is a variable star in the constellation Boötes.
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Redirects here:
Arctophylax, Boeotes, Booetes (constellation), Booetes constellation, Bootes, Bootes (constellation), Bootes constellation, Boötes (constellation), Boötes constellation, Böotes, Constellation Bootes, Sheti.
References
[1] https://en.wikipedia.org/wiki/Boötes
