GJ 393

Display orbital revolution around the star GJ 393
Imaginary Picture of Star GJ 393
Star Name : GJ 393
Alternate Name : Gl 393
Star Distance (LY/pc): 22.9532 (LY) 7.0375 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 0.4260 (Rsun, estimated)
Stellar Mass (Msun): 0.4260 (Msun/observed) 0.4260 (Msun/estimated)
Spectral type : M2.0V
Metalicity : -0.0900
Absolute Magnitude : 9.76
Apparent Magnitude : 9.00
Right Ascension(RA) : 157.22917
Declination(DEC) : 0.83778
  • This is the GJ 393 . The star GJ 393 islocated about 23.0 light-years ( 7.0 pc) away from our Solar System.
  • The star GJ 393 has apparent magnitude of 9.0, with absolute magnitude of 9.8.
  • It is 0.4 times more massive and 0.4 times bigger compared with our Sun. The surface temperature is 3579 with its spectral types of M2.0V
  • Number of Extrasolar Planets : 1
  • Name of the 1 Planet GJ 393 b radius 0.103240 mass 0.005380 orbital distance 0.054020
    (Illustration of the GJ 393's Planetary System)



    The Star GJ 393 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.118 AU ( 17684431.7 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.163 AU ( 24444506.1 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.249 AU ( 37248017.8 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.366 AU ( 54812089.9 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star GJ 393)



    Kopparapu's Recent Venus for Star GJ 393 distance : 0.133 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star GJ 393 distance : 0.169 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star GJ 393 distance : 0.163 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star GJ 393 distance : 0.178 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star GJ 393 distance : 0.327 AU
    Kopparapu's Outer Boundary for Early Mars for Star GJ 393 distance : 0.345 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star GJ 393)



  • Original Kopparapu Recent Venus for Star GJ 393 distance : 0.132 AU
  • Original Kopparapu Runaway Greenhouse for Star GJ 393 distance : 0.175 AU
  • Original Kopparapu Moist Greenhouse for Star GJ 393 distance : 0.175 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star GJ 393 distance : 0.332 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star GJ 393 distance : 0.346 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star GJ 393)



    (Position in Stellar Map of star GJ 393 )



    (Zoomed position in Stellar Map of star GJ 393 (zoom level 3))

    (Synthetic Spectrum of star DoAr 21 (AB)*)
    *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