K2-8

Display orbital revolution around the star K2-8
Imaginary Picture of Star K2-8
Star Name : K2-8
Alternate Name : "EPIC 201445392, 2MASS J11191047-0017036, WISE J111910.45-001703.8"
Star Distance (LY/pc): 1331.7926 (LY) 408.3299 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 0.7400 (Rsun, estimated)
Stellar Mass (Msun): 0.7800 (Msun/observed) 0.7800 (Msun/estimated)
Spectral type : K3 V
Metalicity : -0.0200
Absolute Magnitude : 6.33
Apparent Magnitude : 14.38
Right Ascension(RA) : 169.79367
Declination(DEC) : -0.28437
  • This is the K2-8 . The star K2-8 islocated about 1331.8 light-years (408.3 pc) away from our Solar System.
  • The star K2-8 has apparent magnitude of 14.4, with absolute magnitude of 6.3.
  • It is 0.8 times more massive and 0.7 times bigger compared with our Sun. The surface temperature is 4870 with its spectral types of K3 V
  • Number of Extrasolar Planets : 2
  • Name of the 1 Planet K2-8 b radius 0.319000 mass 0.027139 orbital distance 0.085600
  • Name of the 2 Planet K2-8 c radius 0.215000 mass 0.018803 orbital distance 0.053200
    (Illustration of the K2-8's Planetary System)



    The Star K2-8 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.380 AU ( 56878450.2 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.526 AU ( 78620882.3 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.801 AU ( 119800825.9 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.178 AU ( 176292163.5 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star K2-8)



    Kopparapu's Recent Venus for Star K2-8 distance : 0.414 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star K2-8 distance : 0.524 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star K2-8 distance : 0.506 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star K2-8 distance : 0.555 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star K2-8 distance : 0.955 AU
    Kopparapu's Outer Boundary for Early Mars for Star K2-8 distance : 1.007 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star K2-8)



  • Original Kopparapu Recent Venus for Star K2-8 distance : 0.409 AU
  • Original Kopparapu Runaway Greenhouse for Star K2-8 distance : 0.540 AU
  • Original Kopparapu Moist Greenhouse for Star K2-8 distance : 0.541 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star K2-8 distance : 0.970 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star K2-8 distance : 1.009 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star K2-8)



    (Position in Stellar Map of star K2-8 )



    (Zoomed position in Stellar Map of star K2-8 (zoom level 3))

    (Synthetic Spectrum of star Kepler-824*)
    *Yamashiki YA et al. 2019 ApJ 881 114
    MUSCLES Paper I - France et al. 2016 ApJ 820 89
    MUSCLES Paper II- Youngblood et al. 2016 ApJ 824 101
    MUSCLES Paper III- Loyd et al. 2016 ApJ 824 102