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HD 202259

Index HD 202259

HD 202259 is a suspected variable star in the equatorial constellation of Aquarius. [1]

18 relations: Apparent magnitude, Aquarius (constellation), Asymptotic giant branch, Bortle scale, Bright Star Catalogue, Constellation, Durchmusterung, Henry Draper Catalogue, Hertzsprung–Russell diagram, Hipparcos, Light-year, New Catalogue of Suspected Variable Stars, Radial velocity, Red giant, Smithsonian Astrophysical Observatory Star Catalog, Stellar classification, Stellar kinematics, Variable star.

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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Aquarius (constellation)

Aquarius is a constellation of the zodiac, situated between Capricornus and Pisces.

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Asymptotic giant branch

The asymptotic giant branch (AGB) is a region of the Hertzsprung–Russell diagram populated by evolved cool luminous stars.

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Bortle scale

The Bortle scale is a nine-level numeric scale that measures the night sky's brightness of a particular location.

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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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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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Hertzsprung–Russell diagram

The Hertzsprung–Russell diagram, abbreviated H–R diagram, HR diagram or HRD, is a scatter plot of stars showing the relationship between the stars' absolute magnitudes or luminosities versus their stellar classifications or effective temperatures.

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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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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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New Catalogue of Suspected Variable Stars

The New Catalogue of Suspected Variable Stars (NSV) is a star catalogue containing 14,811 stars which, although suspected to be variable, were not given variable star designations prior to 1980.

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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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Red giant

A red giant is a luminous giant star of low or intermediate mass (roughly 0.3–8 solar masses) in a late phase of stellar evolution.

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Smithsonian Astrophysical Observatory Star Catalog

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

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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 kinematics

In astronomy, stellar kinematics is the observational study or measurement of the kinematics or motions of stars through space.

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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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Redirects here:

DO 7263, HIC 104872, HIP 104872, HR 8121, SAO 145229.

References

[1] https://en.wikipedia.org/wiki/HD_202259

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