K2-31 A

Display orbital revolution around the star K2-31 A
Imaginary Picture of Star K2-31 A
Star Name : K2-31 A
Alternate Name : "EPIC 204129699, TYC 6794-471-1, 2MASS 16214578-2332520"
Star Distance (LY/pc): 360.4904 (LY) 110.5270 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 1.0290 (Rsun, estimated)
Stellar Mass (Msun): 0.9220 (Msun/observed) 0.9220 (Msun/estimated)
Spectral type : G7V
Metalicity : 0.1500
Absolute Magnitude : 5.58
Apparent Magnitude : 10.80
Right Ascension(RA) : 245.44084
Declination(DEC) : -23.54787
  • This is the K2-31 A . The star K2-31 A islocated about 360.5 light-years (110.5 pc) away from our Solar System.
  • The star K2-31 A has apparent magnitude of 10.8, with absolute magnitude of 5.6.
  • It is 0.9 times more massive and 1.0 times bigger compared with our Sun. The surface temperature is 5340 with its spectral types of G7V
  • Number of Extrasolar Planets : 1
  • Name of the 1 Planet K2-31 Ab radius 1.060000 mass 1.774000 orbital distance 0.022000
    (Illustration of the K2-31 A's Planetary System)



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

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.636 AU ( 95094631.8 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.879 AU ( 131445632.4 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.339 AU ( 200294054.9 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.970 AU ( 294741476.1 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star K2-31 A)



    Kopparapu's Recent Venus for Star K2-31 A distance : 0.676 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star K2-31 A distance : 0.856 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star K2-31 A distance : 0.826 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star K2-31 A distance : 0.906 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star K2-31 A distance : 1.531 AU
    Kopparapu's Outer Boundary for Early Mars for Star K2-31 A distance : 1.615 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star K2-31 A)



  • Original Kopparapu Recent Venus for Star K2-31 A distance : 0.671 AU
  • Original Kopparapu Runaway Greenhouse for Star K2-31 A distance : 0.881 AU
  • Original Kopparapu Moist Greenhouse for Star K2-31 A distance : 0.888 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star K2-31 A distance : 1.558 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star K2-31 A distance : 1.620 AU

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



    (Position in Stellar Map of star K2-31 A )



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

    (Synthetic Spectrum of star Kepler-847*)
    *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