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Beta Hydrae

Index Beta Hydrae

Beta Hydrae (Beta Hya, β Hydrae, β Hya) is a double star in the constellation of Hydra. [1]

24 relations: Alpha2 Canum Venaticorum variable, Ap and Bp stars, Apparent magnitude, Bayer designation, Boss General Catalogue, Bright Star Catalogue, Catalog of Components of Double and Multiple Stars, Centre de données astronomiques de Strasbourg, Constellation, Double star, Durchmusterung, Epoch (astronomy), Giant star, Henry Draper Catalogue, Hipparcos, Hydra (constellation), Index Catalogue of Visual Double Stars, International Celestial Reference System, PPM Star Catalogue, SIMBAD, Smithsonian Astrophysical Observatory Star Catalog, Star, United States Naval Observatory, Washington Double Star Catalog.

Alpha2 Canum Venaticorum variable

An Alpha2 Canum Venaticorum variable (or α2 CVn variable) is a type of variable star.

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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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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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Boss General Catalogue

Boss General Catalogue (GC, sometimes General Catalogue) is an astronomical catalogue containing 33,342 stars.

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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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Catalog of Components of Double and Multiple Stars

The Catalog of Components of Double and Multiple Stars, or CCDM, is an astrometric star catalogue of double and multiple stars.

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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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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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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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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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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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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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Hydra (constellation)

Hydra is the largest of the 88 modern constellations, measuring 1303 square degrees.

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Index Catalogue of Visual Double Stars

The Index Catalogue of Visual Double Stars, or IDS, is a catalog of double stars.

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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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PPM Star Catalogue

The PPM Star Catalogue (Positions and Proper Motions Star Catalogue) is the successor of the SAO Catalogue.

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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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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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United States Naval Observatory

The United States Naval Observatory (USNO) is one of the oldest scientific agencies in the United States, with a primary mission to produce Positioning, Navigation and Timing (PNT) for the United States Navy and the United States Department of Defense.

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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:

28 Crateris, Beta Hya, CCDM J11529-3354, CCDM J11529-3354A, CCDM J11529-3354AB, CCDM J11529-3354B, CCDM J11529−3354, CCDM J11529−3354A, CCDM J11529−3354AB, CCDM J11529−3354B, CD -33 8018, CD −33 8018, CD-33 8018, CD−33 8018, CPD -33 3159, CPD −33 3159, CPD-33 3159, CPD−33 3159, GC 16258, HD 103192, HIP 57936, HR 4552, IDS 11479-3321, IDS 11479-3321 A, IDS 11479-3321 AB, IDS 11479-3321 B, IDS 11479−3321, IDS 11479−3321 A, IDS 11479−3321 AB, IDS 11479−3321 B, PPM 289465, SAO 202901, Β Hya, Β Hydrae.

References

[1] https://en.wikipedia.org/wiki/Beta_Hydrae

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