K2-391

Display orbital revolution around the star K2-391
Imaginary Picture of Star K2-391
Star Name : K2-391
Alternate Name : EPIC 246074314
Star Distance (LY/pc): 1656.6768 (LY) 507.9400 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 0.5660 (Rsun, estimated)
Stellar Mass (Msun): 0.7570 (Msun/observed) 0.7570 (Msun/estimated)
Spectral type : G5VI
Metalicity : -0.5430
Absolute Magnitude : 2.60
Apparent Magnitude : 11.13
Right Ascension(RA) : 356.22600
Declination(DEC) : -7.70151
  • This is the K2-391 . The star K2-391 islocated about 1656.7 light-years (507.9 pc) away from our Solar System.
  • The star K2-391 has apparent magnitude of 11.1, with absolute magnitude of 2.6.
  • It is 0.8 times more massive and 0.6 times bigger compared with our Sun. The surface temperature is 5543 with its spectral types of G5VI
  • Number of Extrasolar Planets : 1
  • Name of the 1 Planet K2-391 b radius 0.122310 mass 0.007830 orbital distance 0.049500
    (Illustration of the K2-391's Planetary System)



    The Star K2-391 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.377 AU ( 56359132.7 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.521 AU ( 77903049.7 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.794 AU ( 118707007.9 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.168 AU ( 174682562.3 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star K2-391)



    Kopparapu's Recent Venus for Star K2-391 distance : 0.396 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star K2-391 distance : 0.501 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star K2-391 distance : 0.484 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star K2-391 distance : 0.531 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star K2-391 distance : 0.891 AU
    Kopparapu's Outer Boundary for Early Mars for Star K2-391 distance : 0.940 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star K2-391)



  • Original Kopparapu Recent Venus for Star K2-391 distance : 0.395 AU
  • Original Kopparapu Runaway Greenhouse for Star K2-391 distance : 0.516 AU
  • Original Kopparapu Moist Greenhouse for Star K2-391 distance : 0.522 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star K2-391 distance : 0.907 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star K2-391 distance : 0.943 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star K2-391)



    (Position in Stellar Map of star K2-391 )



    (Zoomed position in Stellar Map of star K2-391 (zoom level 3))

    (Synthetic Spectrum of star Kepler-1162*)
    *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