K2-117

Display orbital revolution around the star K2-117
Imaginary Picture of Star K2-117
Star Name : K2-117
Alternate Name : "2MASS J08552535+1028087, K2-117, EPIC 211331236, WISE J085525.36+102809.0"
Star Distance (LY/pc): 333.4792 (LY) 102.2453 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 0.5100 (Rsun, estimated)
Stellar Mass (Msun): 0.5400 (Msun/observed) 0.5400 (Msun/estimated)
Spectral type : M1.0 V
Metalicity : -0.0500
Absolute Magnitude : 6.40
Apparent Magnitude : 11.45
Right Ascension(RA) : 133.85568
Declination(DEC) : 10.46913
  • This is the K2-117 . The star K2-117 islocated about 333.5 light-years (102.2 pc) away from our Solar System.
  • The star K2-117 has apparent magnitude of 11.4, with absolute magnitude of 6.4.
  • It is 0.5 times more massive and 0.5 times bigger compared with our Sun. The surface temperature is 3778 with its spectral types of M1.0 V
  • Number of Extrasolar Planets : 2
  • Name of the 1 Planet K2-117 b radius 0.181000 mass 0.016022 orbital distance 0.018900
  • Name of the 2 Planet K2-117 c radius 0.184000 mass 0.016269 orbital distance 0.049200
    (Illustration of the K2-117's Planetary System)



    The Star K2-117 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.158 AU ( 23591317.5 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.218 AU ( 32609365.9 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.332 AU ( 49689457.3 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.489 AU ( 73120213.1 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star K2-117)



    Kopparapu's Recent Venus for Star K2-117 distance : 0.177 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star K2-117 distance : 0.225 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star K2-117 distance : 0.217 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star K2-117 distance : 0.237 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star K2-117 distance : 0.431 AU
    Kopparapu's Outer Boundary for Early Mars for Star K2-117 distance : 0.455 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star K2-117)



  • Original Kopparapu Recent Venus for Star K2-117 distance : 0.176 AU
  • Original Kopparapu Runaway Greenhouse for Star K2-117 distance : 0.232 AU
  • Original Kopparapu Moist Greenhouse for Star K2-117 distance : 0.232 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star K2-117 distance : 0.438 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star K2-117 distance : 0.455 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star K2-117)



    (Position in Stellar Map of star K2-117 )



    (Zoomed position in Stellar Map of star K2-117 (zoom level 3))

    (Synthetic Spectrum of star Kepler-797*)
    *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