K2-231

Display orbital revolution around the star K2-231
Imaginary Picture of Star K2-231
Star Name : K2-231
Alternate Name : "2MASS J19162203-1546159, EPIC 219800881, WISE J191622.03-154616.4"
Star Distance (LY/pc): 1022.5608 (LY) 313.5189 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 0.9500 (Rsun, estimated)
Stellar Mass (Msun): 1.0100 (Msun/observed) 1.0100 (Msun/estimated)
Spectral type : G4
Metalicity : 0.1400
Absolute Magnitude : 5.22
Apparent Magnitude : 12.70
Right Ascension(RA) : 289.09183
Declination(DEC) : -15.77111
  • This is the K2-231 . The star K2-231 islocated about 1022.6 light-years (313.5 pc) away from our Solar System.
  • The star K2-231 has apparent magnitude of 12.7, with absolute magnitude of 5.2.
  • It is 1.0 times more massive and 0.9 times bigger compared with our Sun. The surface temperature is 5695 with its spectral types of G4
  • Number of Extrasolar Planets : 1
  • Name of the 1 Planet K2-231 b radius 0.223000 mass 0.022700 orbital distance 0.000000
    (Illustration of the K2-231's Planetary System)



    The Star K2-231 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.667 AU ( 99854852.5 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.923 AU ( 138025501.4 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.406 AU ( 210320319.1 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.069 AU ( 309495563.1 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star K2-231)



    Kopparapu's Recent Venus for Star K2-231 distance : 0.695 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star K2-231 distance : 0.880 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star K2-231 distance : 0.850 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star K2-231 distance : 0.932 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star K2-231 distance : 1.558 AU
    Kopparapu's Outer Boundary for Early Mars for Star K2-231 distance : 1.644 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star K2-231)



  • Original Kopparapu Recent Venus for Star K2-231 distance : 0.695 AU
  • Original Kopparapu Runaway Greenhouse for Star K2-231 distance : 0.905 AU
  • Original Kopparapu Moist Greenhouse for Star K2-231 distance : 0.920 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star K2-231 distance : 1.586 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star K2-231 distance : 1.649 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star K2-231)



    (Position in Stellar Map of star K2-231 )



    (Zoomed position in Stellar Map of star K2-231 (zoom level 3))

    (Synthetic Spectrum of star Kepler-1021*)
    *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