K2-31

Display orbital revolution around the star K2-31
Imaginary Picture of Star K2-31
Star Name : K2-31
Alternate Name : "EPIC 204129699, TYC 6794-471-1, 2MASS 16214578-2332520"
Star Distance (LY/pc): 359.3610 (LY) 110.1807 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 0.7800 (Rsun, estimated)
Stellar Mass (Msun): 0.9100 (Msun/observed) 0.9100 (Msun/estimated)
Spectral type : G7V
Metalicity : 0.0800
Absolute Magnitude : 5.59
Apparent Magnitude : 10.80
Right Ascension(RA) : 245.44084
Declination(DEC) : -23.54787
  • This is the K2-31 . The star K2-31 islocated about 359.4 light-years (110.2 pc) away from our Solar System.
  • The star K2-31 has apparent magnitude of 10.8, with absolute magnitude of 5.6.
  • It is 0.9 times more massive and 0.8 times bigger compared with our Sun. The surface temperature is 5280 with its spectral types of G7V
  • Number of Extrasolar Planets : 1
  • Name of the 1 Planet K2-31 b radius 1.060000 mass 1.774000 orbital distance 0.022000
    (Illustration of the K2-31 's Planetary System)



    The Star K2-31 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.471 AU ( 70472643.1 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.651 AU ( 97411609.5 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.992 AU ( 148433735.7 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.460 AU ( 218426744.6 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star K2-31 )



    Kopparapu's Recent Venus for Star K2-31 distance : 0.502 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star K2-31 distance : 0.636 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star K2-31 distance : 0.614 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star K2-31 distance : 0.674 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star K2-31 distance : 1.141 AU
    Kopparapu's Outer Boundary for Early Mars for Star K2-31 distance : 1.203 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star K2-31 )



  • Original Kopparapu Recent Venus for Star K2-31 distance : 0.499 AU
  • Original Kopparapu Runaway Greenhouse for Star K2-31 distance : 0.655 AU
  • Original Kopparapu Moist Greenhouse for Star K2-31 distance : 0.660 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star K2-31 distance : 1.160 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star K2-31 distance : 1.207 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star K2-31 )



    (Position in Stellar Map of star K2-31 )



    (Zoomed position in Stellar Map of star K2-31 (zoom level 3))

    (Synthetic Spectrum of star Kepler-758*)
    *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