GJ 317
Imaginary Picture of Star GJ 317
Star Name : GJ 317
Alternate Name :
Star Distance (LY/pc): 49.9473 (LY) 15.3139 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 0.4129 (Rsun, estimated)
Stellar Mass (Msun): 0.4200 (Msun/observed) 0.4200 (Msun/estimated)
Spectral type : M3.5
Metalicity : 0.3600
Absolute Magnitude : 11.07
Apparent Magnitude : 12.00
Right Ascension(RA) : 130.24683
Declination(DEC) : -23.45639
  • This is the GJ 317 . The star GJ 317 islocated about 49.9 light-years (15.3 pc) away from our Solar System.
  • The star GJ 317 has apparent magnitude of 12.0, with absolute magnitude of 11.1.
  • It is 0.4 times more massive and 0.4 times bigger compared with our Sun. The surface temperature is 3510 with its spectral types of M3.5
  • Number of Extrasolar Planets : 2
  • Name of the 1 Planet GJ 317 b radius 0.907830 mass 2.329800 orbital distance 1.110000
  • Name of the 2 Planet GJ 317 c radius 0.907830 mass 0.163000 orbital distance 0.763000
    (Illustration of the GJ 317's Planetary System)



    The Star GJ 317 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.110 AU ( 16485882.6 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.152 AU ( 22787798.0 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.232 AU ( 34723561.3 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.342 AU ( 51097241.5 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star GJ 317)



    Kopparapu's Recent Venus for Star GJ 317 distance : 0.134 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star GJ 317 distance : 0.170 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star GJ 317 distance : 0.164 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star GJ 317 distance : 0.179 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star GJ 317 distance : 0.330 AU
    Kopparapu's Outer Boundary for Early Mars for Star GJ 317 distance : 0.349 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star GJ 317)



  • Original Kopparapu Recent Venus for Star GJ 317 distance : 0.133 AU
  • Original Kopparapu Runaway Greenhouse for Star GJ 317 distance : 0.176 AU
  • Original Kopparapu Moist Greenhouse for Star GJ 317 distance : 0.176 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star GJ 317 distance : 0.336 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star GJ 317 distance : 0.349 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star GJ 317)



    (Position in Stellar Map of star GJ 317 )



    (Zoomed position in Stellar Map of star GJ 317 (zoom level 3))