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K2-315 is a star in the southern zodiac constellation Libra. It has an apparent magnitude of 17.67, requiring a powerful telescope to be seen. The star is relatively close at a distance of 185 light years but is receding with a radial velocity of 6.25 km/s.

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  • K2-315 (en)
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  • K2-315 is a star in the southern zodiac constellation Libra. It has an apparent magnitude of 17.67, requiring a powerful telescope to be seen. The star is relatively close at a distance of 185 light years but is receding with a radial velocity of 6.25 km/s. (en)
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  • K2-315 (en)
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  • http://commons.wikimedia.org/wiki/Special:FilePath/K2-315Location.png
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age gyr
  • >1 (en)
appmag v
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  • M3.5 V (en)
constell
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  • J2000.0 (en)
exoplanet
gravity
inclination
luminosity
mass
metal fe
  • −0.24 (en)
p error
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period
prop mo dec
  • +74.471 (en)
prop mo ra
  • −120.013 (en)
radial v
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rotational velocity
  • <5 (en)
semimajor
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  • K2-315 is a star in the southern zodiac constellation Libra. It has an apparent magnitude of 17.67, requiring a powerful telescope to be seen. The star is relatively close at a distance of 185 light years but is receding with a radial velocity of 6.25 km/s. K2-315 has a stellar classification of M3.5±0.5 V, indicating that it is a M-type main-sequence star (with 14% uncertainty). It has 17.4% the mass of the Sun and 20% its radius. Typical for red dwarves, it has a luminosity less than 1% of the Sun, which yields an effective temperature of 3,300 K. Unlike most planetary hosts, K2-315 is metal-deficient, with an iron abundance only 57% that of the Sun. It is estimated to be over a billion years old, and has a projected rotational velocity less than 5 km/s. (en)
mass earth
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