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6 Equulei is an A-type main sequence star in the constellation of Equuleus with an apparent magnitude of 6.07. [1]

16 relations: A-type main-sequence star, Apparent magnitude, Bright Star Catalogue, Celestia, Constellation, Double star, Durchmusterung, Epoch (astronomy), Equuleus, Gamma Equulei, Henry Draper Catalogue, Hipparcos, International Celestial Reference System, Light-year, Minute and second of arc, Smithsonian Astrophysical Observatory Star Catalog.

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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The apparent magnitude (m) of a celestial object is a measure of its brightness as seen by an observer on Earth, adjusted to the value it would have in the absence of the atmosphere.

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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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Celestia is a 3D astronomy program created by Chris Laurel.

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In modern astronomy, a constellation is a specific area of the celestial sphere as defined by the International Astronomical Union (IAU).

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In observational astronomy, a double star 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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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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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 is a constellation.

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Gamma Equulei (5 Equulei) is the Bayer designation for a double star in the northern constellation of Equuleus.

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

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

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A light-year (abbreviation: ly), sometimes written light year, is a unit of length used informally to express astronomical distances.

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A minute of arc (MOA), arcminute (arcmin) or minute arc is a unit of angular measurement equal to one-sixtieth of one degree.

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

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[1] https://en.wikipedia.org/wiki/6_Equulei

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