K2-187

Display orbital revolution around the star K2-187
Imaginary Picture of Star K2-187
Star Name : K2-187
Alternate Name : "2MASS J08500566+2311333, EPIC 212157262, WISE J085005.65+231133.0"
Star Distance (LY/pc): 1087.7629 (LY) 333.5100 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 0.9200 (Rsun, estimated)
Stellar Mass (Msun): 0.9800 (Msun/observed) 0.9800 (Msun/estimated)
Spectral type : G7
Metalicity : 0.2300
Absolute Magnitude : 4.07
Apparent Magnitude : 11.69
Right Ascension(RA) : 132.52361
Declination(DEC) : 23.19260
  • This is the K2-187 . The star K2-187 islocated about 1087.8 light-years (333.5 pc) away from our Solar System.
  • The star K2-187 has apparent magnitude of 11.7, with absolute magnitude of 4.1.
  • It is 1.0 times more massive and 0.9 times bigger compared with our Sun. The surface temperature is 5484 with its spectral types of G7
  • Number of Extrasolar Planets : 4
  • Name of the 1 Planet K2-187 b radius 0.116000 mass 0.007939 orbital distance 0.016400
  • Name of the 2 Planet K2-187 c radius 0.161000 mass 0.014369 orbital distance 0.039200
  • Name of the 3 Planet K2-187 d radius 0.283000 mass 0.024279 orbital distance 0.072000
  • Name of the 4 Planet K2-187 e radius 0.212000 mass 0.018559 orbital distance 0.110600
    (Illustration of the K2-187's Planetary System)



    The Star K2-187 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.599 AU ( 89668691.4 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.829 AU ( 123945564.8 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.262 AU ( 188865611.7 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.858 AU ( 277924021.2 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star K2-187)



    Kopparapu's Recent Venus for Star K2-187 distance : 0.632 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star K2-187 distance : 0.800 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star K2-187 distance : 0.773 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star K2-187 distance : 0.848 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star K2-187 distance : 1.426 AU
    Kopparapu's Outer Boundary for Early Mars for Star K2-187 distance : 1.504 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star K2-187)



  • Original Kopparapu Recent Venus for Star K2-187 distance : 0.629 AU
  • Original Kopparapu Runaway Greenhouse for Star K2-187 distance : 0.823 AU
  • Original Kopparapu Moist Greenhouse for Star K2-187 distance : 0.833 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star K2-187 distance : 1.450 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star K2-187 distance : 1.508 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star K2-187)



    (Position in Stellar Map of star K2-187 )



    (Zoomed position in Stellar Map of star K2-187 (zoom level 3))

    (Synthetic Spectrum of star Kepler-903*)
    *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