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K-type star

(type of star with about 3/4 the mass of the Sun)

A K-type star is a star of the K-class, a spectral class for stars of around .75 solar mass and .75 solar radius. They burn up their hydrogen in tens of billions of years. They have very weak hydrogen lines. Characteristics:

orangeconventional color
4000-5200Ksurface temperature
6-8absolute magnitude(visual)
.1-.4bolometric luminosity(solar)
21+ billion yearsmain-sequence lifetime

K-type stars are a good bet for habitable extra-solar planets, but offer few planets for study because the stars are much rarer than M-type star and much dimmer than the hotter classes.

(star type,spectral type)
527nm569THz2.4eVbeginK-type star
725nm414THz1.8eVendK-type star

Referenced by:
Beta Pictoris b (β Pic b)
calcium (Ca)
FGK star
G band
Kepler Telescope
M dwarf
Morgan classification
red dwarf
red giant
red-giant branch (RGB)
spectral class
Transiting Exoplanet Survey Satellite (TESS)
Tucana Horologium association (THA)
TW Hydrae association (TWA)
Wilson-Bappu effect