K2-137

Display orbital revolution around the star K2-137
Imaginary Picture of Star K2-137
Star Name : K2-137
Alternate Name : "2MASS J12272899-0611428, EPIC 228813918, EPIC 228813918, WISE J122728.92-061142.7"
Star Distance (LY/pc): 323.3974 (LY) 99.1542 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 0.4400 (Rsun, estimated)
Stellar Mass (Msun): 0.4600 (Msun/observed) 0.4600 (Msun/estimated)
Spectral type : M3 V
Metalicity : 0.0800
Absolute Magnitude : 10.52
Apparent Magnitude : 15.50
Right Ascension(RA) : 186.87077
Declination(DEC) : -6.19522
  • This is the K2-137 . The star K2-137 islocated about 323.4 light-years (99.2 pc) away from our Solar System.
  • The star K2-137 has apparent magnitude of 15.5, with absolute magnitude of 10.5.
  • It is 0.5 times more massive and 0.4 times bigger compared with our Sun. The surface temperature is 3492 with its spectral types of M3 V
  • Number of Extrasolar Planets : 1
  • Name of the 1 Planet K2-137 b radius 0.079000 mass 0.500000 orbital distance 0.005800
    (Illustration of the K2-137's Planetary System)



    The Star K2-137 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.116 AU ( 17388385.5 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.161 AU ( 24035292.8 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.245 AU ( 36624467.3 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.360 AU ( 53894508.0 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star K2-137)



    Kopparapu's Recent Venus for Star K2-137 distance : 0.131 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star K2-137 distance : 0.166 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star K2-137 distance : 0.160 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star K2-137 distance : 0.175 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star K2-137 distance : 0.324 AU
    Kopparapu's Outer Boundary for Early Mars for Star K2-137 distance : 0.341 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star K2-137)



  • Original Kopparapu Recent Venus for Star K2-137 distance : 0.130 AU
  • Original Kopparapu Runaway Greenhouse for Star K2-137 distance : 0.172 AU
  • Original Kopparapu Moist Greenhouse for Star K2-137 distance : 0.172 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star K2-137 distance : 0.329 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star K2-137 distance : 0.342 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star K2-137)



    (Position in Stellar Map of star K2-137 )



    (Zoomed position in Stellar Map of star K2-137 (zoom level 3))

    (Synthetic Spectrum of star Kepler-858*)
    *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