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K-type main-sequence star

Index K-type main-sequence star

A K-type main-sequence star (K V), also referred to as an orange dwarf or K dwarf, is a main-sequence (hydrogen-burning) star of spectral type K and luminosity class V. These stars are intermediate in size between red M-type main-sequence stars ("red dwarfs") and yellow G-type main-sequence stars. [1]

32 relations: Alpha Centauri, DNA, Effective temperature, Epsilon Eridani, Epsilon Indi, Exoplanet, Extraterrestrial life, Fomalhaut, G-type main-sequence star, Gliese 86, Habitability of K-type main-sequence star systems, HD 192310, HR 8832, Hydrogen, Kelvin, List of nearest bright stars, Main sequence, New Scientist, Red dwarf, SIMBAD, Solar analog, Solar mass, Star, Star count, Stellar classification, Sun, Terrestrial planet, Ultraviolet, 107 Piscium, 54 Piscium, 61 Cygni, 70 Ophiuchi.

Alpha Centauri

Alpha Centauri (α Centauri, abbreviated Alf Cen or α Cen) is the star system closest to the Solar System, being from the Sun.

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DNA

Deoxyribonucleic acid (DNA) is a thread-like chain of nucleotides carrying the genetic instructions used in the growth, development, functioning and reproduction of all known living organisms and many viruses.

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Effective temperature

The effective temperature of a body such as a star or planet is the temperature of a black body that would emit the same total amount of electromagnetic radiation.

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Epsilon Eridani

Epsilon Eridani (ε Eridani, abbreviated Epsilon Eri, ε Eri), also named Ran, is a star in the southern constellation of Eridanus, at a declination of 9.46° south of the celestial equator.

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Epsilon Indi

Epsilon Indi (ε Indi, ε Ind) is a star system approximately 12 light-years from Earth in the constellation of Indus consisting of a K-type main-sequence star, ε Indi A, and two brown dwarfs, ε Indi Ba and ε Indi Bb, in a wide orbit around it.

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Exoplanet

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

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Extraterrestrial life

Extraterrestrial life,Where "extraterrestrial" is derived from the Latin extra ("beyond", "not of") and terrestris ("of Earth", "belonging to Earth").

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Fomalhaut

Fomalhaut, also designated Alpha Piscis Austrini (α Piscis Austrini, abbreviated Alpha PsA, α PsA) is the brightest star in the constellation of Piscis Austrinus and one of the brightest stars in the sky.

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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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Gliese 86

Gliese 86 (13 G. Eridani, HD 13445) is a K-type main-sequence star approximately 35 light-years away in the constellation of Eridanus.

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Habitability of K-type main-sequence star systems

K-type main-sequence stars may be candidates for supporting extraterrestrial life.

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HD 192310

HR 7722 (also known as 5 G. Capricorni or Gliese 785) is a star in the southern constellation of Capricornus.

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HR 8832

HR 8832 (or HD 219134, or Gliese 892) is a main sequence star in the constellation of Cassiopeia.

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Hydrogen

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

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Kelvin

The Kelvin scale is an absolute thermodynamic temperature scale using as its null point absolute zero, the temperature at which all thermal motion ceases in the classical description of thermodynamics.

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List of nearest bright stars

This list of nearest bright stars is a table of stars found within 15 parsecs (48.9 light-years) of the Sun that have an absolute magnitude of +8.5 or brighter, which is approximately comparable to a listing of stars more luminous than a red dwarf.

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Main sequence

In astronomy, the main sequence is a continuous and distinctive band of stars that appear on plots of stellar color versus brightness.

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New Scientist

New Scientist, first published on 22 November 1956, is a weekly, English-language magazine that covers all aspects of science and technology.

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Red dwarf

A red dwarf (or M dwarf) is a small and relatively cool star on the main sequence, of M spectral type.

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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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Solar analog

Solar-type star, solar analogs (also analogues), and solar twins are stars that are particularly similar to the Sun.

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Solar mass

The solar mass is a standard unit of mass in astronomy, equal to approximately.

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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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Star count

Star counts are bookkeeping surveys of stars and the statistical and geometrical methods used to correct the survey data for bias.

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Stellar classification

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

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Sun

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

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Terrestrial planet

A terrestrial planet, telluric planet, or rocky planet is a planet that is composed primarily of silicate rocks or metals.

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Ultraviolet

Ultraviolet (UV) is electromagnetic radiation with a wavelength from 10 nm to 400 nm, shorter than that of visible light but longer than X-rays.

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107 Piscium

107 Piscium (abbreviated 107 Psc) is a K-type main sequence star in the constellation of Pisces, about 24.4 light years away from the Earth.

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54 Piscium

54 Piscium is an orange dwarf star approximately 36 light-years away in the constellation of Pisces.

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61 Cygni

61 Cygni Not to be confused with 16 Cygni, a more distant system containing two G-type stars harboring the gas giant planet 16 Cygni Bb.

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70 Ophiuchi

70 Ophiuchi is a binary star system located 16.6 light years away from the Earth.

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Redirects here:

Class K star, DKe, K V star, K-Dwarf, K-type dwarf, K-type main sequence, K-type main sequence star, Orange dwarf, Orange dwarf star, Orange dwarfs.

References

[1] https://en.wikipedia.org/wiki/K-type_main-sequence_star

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