31 relations: A-type main-sequence star, Apparent magnitude, Astronomical unit, Bayer designation, Bright Star Catalogue, Constellation, Debris disk, Double star, Durchmusterung, Effective temperature, Epoch (astronomy), Equuleus, Flamsteed designation, Henry Draper Catalogue, Hipparcos, Infrared excess, International Celestial Reference System, Latinisation of names, Light-year, Minute and second of arc, Monthly Notices of the Royal Astronomical Society, Semi-major and semi-minor axes, SIMBAD, Smithsonian Astrophysical Observatory Star Catalog, Solar radius, Star, Stellar classification, Stellar parallax, Stellar rotation, Sun, Washington Double Star Catalog.
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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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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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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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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Bright Star Catalogue
The Bright Star Catalogue, also known as the Yale Catalogue of Bright Stars or Yale Bright Star Catalogue, is a star catalogue that lists all stars of stellar magnitude 6.5 or brighter, which is roughly every star visible to the naked eye from Earth.
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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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Debris disk
A debris disk is a circumstellar disk of dust and debris in orbit around a 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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Durchmusterung
In astronomy, Durchmusterung or Bonner Durchmusterung (BD), is the comprehensive astrometric star catalogue of the whole sky, compiled by the Bonn Observatory (Germany) from 1859 to 1903.
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Effective temperature
The effective temperature of a body such as a star or planet is the temperature of a black body that would emit the same total amount of electromagnetic radiation.
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Epoch (astronomy)
In astronomy, an epoch is a moment in time used as a reference point for some time-varying astronomical quantity, such as the celestial coordinates or elliptical orbital elements of a celestial body, because these are subject to perturbations and vary with time.
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Equuleus
Equuleus is a constellation.
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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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Henry Draper Catalogue
The Henry Draper Catalogue (HD) is an astronomical star catalogue published between 1918 and 1924, giving spectroscopic classifications for 225,300 stars; it was later expanded by the Henry Draper Extension (HDE), published between 1925 and 1936, which gave classifications for 46,850 more stars, and by the Henry Draper Extension Charts (HDEC), published from 1937 to 1949 in the form of charts, which gave classifications for 86,933 more stars.
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Hipparcos
Hipparcos was a scientific satellite of the European Space Agency (ESA), launched in 1989 and operated until 1993.
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Infrared excess
An infrared excess is a measurement of an astronomical source, typically a star, that in their spectral energy distribution has a greater measured infrared flux than expected by assuming the star is a blackbody radiator.
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International Celestial Reference System
The International Celestial Reference System (ICRS) is the current standard celestial reference system adopted by the International Astronomical Union (IAU).
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Latinisation of names
Latinisation or Latinization is the practice of rendering a non-Latin name (or word) in a Latin style.
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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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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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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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Semi-major and semi-minor axes
In geometry, the major axis of an ellipse is its longest diameter: a line segment that runs through the center and both foci, with ends at the widest points of the perimeter.
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SIMBAD
SIMBAD (the Set of Identifications, Measurements, and Bibliography for Astronomical Data) is an astronomical database of objects beyond the Solar System.
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Smithsonian Astrophysical Observatory Star Catalog
The Smithsonian Astrophysical Observatory Star Catalog is an astrometric star catalogue.
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Solar radius
Solar radius is a unit of distance used to express the size of stars in astronomy.
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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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Stellar parallax
Stellar parallax is the apparent shift of position of any nearby star (or other object) against the background of distant objects.
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Stellar rotation
Stellar rotation is the angular motion of a star about its axis.
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Sun
The Sun is the star at the center of the Solar System.
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Washington Double Star Catalog
The Washington Double Star Catalog, or WDS, is a catalog of double stars, maintained at the United States Naval Observatory.
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Redirects here:
10 Equ, 10 Equulei, ADS 14920, ADS 14920 A, ADS 14920 B, ADS 14920 C, ADS 14920 D, ADS 14920 E, BD +06 4811, BD +06 4811A, BD +06 4811B, BD +06 4811C, BD +06 4811D, BD +06 4811E, BD+06 4811, BD+06 4811 A, BD+06 4811A, BD+06 4811B, BD+06 4811C, BD+06 4811D, BD+06 4811E, Beta Equ, CCDM J21229+0649, CCDM J21229+0649A, CCDM J21229+0649B, CCDM J21229+0649C, CCDM J21229+0649D, CCDM J21229+0649E, GC 29931, HD 203562, HIP 105570, HR 8178, IDS 21179+0623, IDS 21179+0623 A, IDS 21179+0623 B, IDS 21179+0623 C, IDS 21179+0623 D, IDS 21179+0623 E, PPM 171663, SAO 126749, Β Equ, Β Equulei.
References
[1] https://en.wikipedia.org/wiki/Beta_Equulei