Kepler-399
Imaginary Picture of Star Kepler-399
Star Name : Kepler-399
Alternate Name :
Star Distance (LY/pc): 0.0000 (LY) 0.0000 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 0.6800 (Rsun, estimated)
Stellar Mass (Msun): 0.0000 (Msun/observed) 0.7010 (Msun/estimated)
Spectral type : G7
Metalicity : -0.8270
Absolute Magnitude : 25.00
Apparent Magnitude : 13.18
Right Ascension(RA) : 299.50174
Declination(DEC) : 40.67081
  • The star Kepler-399 has apparent magnitude of 13.2, with absolute magnitude of 25.0.
  • Number of Extrasolar Planets : 3
  • Name of the 1 Planet Kepler-399 b radius 0.086000 mass 0.002700 orbital distance 0.103000
  • Name of the 2 Planet Kepler-399 c radius 0.128000 mass 0.011372 orbital distance 0.155000
  • Name of the 3 Planet Kepler-399 d radius 0.169000 mass 0.015032 orbital distance 0.261000
    (Illustration of the Kepler-399's Planetary System)



    The Star Kepler-399 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.446 AU ( 66712650.8 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.616 AU ( 92214317.5 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.939 AU ( 140514212.8 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.382 AU ( 206772819.7 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-399)



    Kopparapu's Recent Venus for Star Kepler-399 distance : 0.470 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star Kepler-399 distance : 0.595 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-399 distance : 0.575 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star Kepler-399 distance : 0.630 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star Kepler-399 distance : 1.059 AU
    Kopparapu's Outer Boundary for Early Mars for Star Kepler-399 distance : 1.117 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-399)



  • Original Kopparapu Recent Venus for Star Kepler-399 distance : 0.468 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-399 distance : 0.612 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-399 distance : 0.619 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-399 distance : 1.077 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-399 distance : 1.120 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-399)



    (Position in Stellar Map of star Kepler-399 )



    (Zoomed position in Stellar Map of star Kepler-399 (zoom level 3))