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13 relations: American Association of Variable Star Observers, Auriga (constellation), Beta Lyrae variable, Binary star, Durchmusterung, Henry Draper Catalogue, Messier 38, Smithsonian Astrophysical Observatory Star Catalog, Star system, Stellar association, Variable star, Variable star designation, Washington Double Star Catalog.
American Association of Variable Star Observers
Since its founding in 1911, the American Association of Variable Star Observers (AAVSO) has coordinated, collected, evaluated, analyzed, published, and archived variable star observations made largely by amateur astronomers and makes the records available to professional astronomers, researchers, and educators.
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Auriga (constellation)
Auriga is one of the 88 modern constellations; it was among the 48 constellations listed by the 2nd-century astronomer Ptolemy.
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Beta Lyrae variable
Beta Lyrae variables are a class of close binary stars.
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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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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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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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Messier 38
Messier 38 (also known as M38 or NGC 1912) is an open cluster in the constellation of Auriga.
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Smithsonian Astrophysical Observatory Star Catalog
The Smithsonian Astrophysical Observatory Star Catalog is an astrometric star catalogue.
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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 association
A stellar association is a very loose star cluster, looser than both open clusters and globular clusters.
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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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Variable star designation
Variable stars are designated using a variation on the Bayer designation format of an identifying label (as described below) combined with the Latin genitive of the name of the constellation in which the star lies.
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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:
CCDM J05297+3523, CEL 728, HD 35921, HGAM 407, HIC 25733, HIP 25733, HU 217, Hilt 457, SAO 58105.
