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HD 108874

Index HD 108874

HD 108874 is a yellow dwarf star (spectral type G5 V) in the constellation of Coma Berenices. [1]

26 relations: Coma Berenices, Constellation, Debra Fischer, Durchmusterung, Exoplanet, G-type main-sequence star, Geoffrey Marcy, Giant planet, HD 108874 b, HD 108874 c, Helium, Henry Draper Catalogue, Hydrogen, Iron, Light-year, List of exoplanets, Metallicity, Orbital period, Orbital resonance, R. Paul Butler, Smithsonian Astrophysical Observatory Star Catalog, Star, Stellar classification, Steven S. Vogt, Sun, W. M. Keck Observatory.

Coma Berenices

Coma Berenices is an ancient asterism in the northern sky which has been defined as one of the 88 modern constellations.

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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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Debra Fischer

Debra Ann Fischer is a professor of astronomy at Yale University researching detection and characterization of exoplanets.

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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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Exoplanet

An exoplanet or extrasolar planet is a planet outside our solar system.

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G-type main-sequence star

A G-type main-sequence star (Spectral type: G-V), often (and imprecisely) called a yellow dwarf, or G dwarf star, is a main-sequence star (luminosity class V) of spectral type G. Such a star has about 0.84 to 1.15 solar masses and surface temperature of between 5,300 and 6,000 K., G. M. H. J. Habets and J. R. W. Heintze, Astronomy and Astrophysics Supplement 46 (November 1981), pp.

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Geoffrey Marcy

Geoffrey William Marcy (born September 29, 1954) is an American astronomer.

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Giant planet

A giant planet is any massive planet.

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HD 108874 b

HD 108874 b is a gas giant announced in 2003.

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HD 108874 c

HD 108874 c is a gas giant discovered in 2005 which orbits beyond the star's habitable zone, and receives insolation 15.9% that of Earth.

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Helium

Helium (from lit) is a chemical element with symbol He and atomic number 2.

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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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Hydrogen

Hydrogen is a chemical element with symbol H and atomic number 1.

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Iron

Iron is a chemical element with symbol Fe (from ferrum) and atomic number 26.

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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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List of exoplanets

This is a list of exoplanets.

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Metallicity

In astronomy, metallicity is used to describe the abundance of elements present in an object that are heavier than hydrogen or helium.

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Orbital period

The orbital period is the time a given astronomical object takes to complete one orbit around another object, and applies in astronomy usually to planets or asteroids orbiting the Sun, moons orbiting planets, exoplanets orbiting other stars, or binary stars.

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Orbital resonance

In celestial mechanics, an orbital resonance occurs when orbiting bodies exert a regular, periodic gravitational influence on each other, usually because their orbital periods are related by a ratio of small integers.

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R. Paul Butler

R.

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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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Stellar classification

In astronomy, stellar classification is the classification of stars based on their spectral characteristics.

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Steven S. Vogt

Steven Scott Vogt (born December 20, 1949) is an American astronomer of German descent whose main interest is the search for extrasolar planets.

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Sun

The Sun is the star at the center of the Solar System.

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W. M. Keck Observatory

The W. M. Keck Observatory is a two-telescope astronomical observatory at an elevation of 4,145 meters (13,600 ft) near the summit of Mauna Kea in the U.S. state of Hawaii.

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References

[1] https://en.wikipedia.org/wiki/HD_108874

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