GJ 9827

Display orbital revolution around the star GJ 9827
Imaginary Picture of Star GJ 9827
Star Name : GJ 9827
Alternate Name :
Star Distance (LY/pc): 96.8239 (LY) 29.6864 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 0.6510 (Rsun, estimated)
Stellar Mass (Msun): 0.6590 (Msun/observed) 0.6590 (Msun/estimated)
Spectral type : K6V
Metalicity : -0.2800
Absolute Magnitude : 8.04
Apparent Magnitude : 10.40
Right Ascension(RA) : 351.77015
Declination(DEC) : -1.28627
  • This is the GJ 9827 . The star GJ 9827 islocated about 96.8 light-years (29.7 pc) away from our Solar System.
  • The star GJ 9827 has apparent magnitude of 10.4, with absolute magnitude of 8.0.
  • It is 0.7 times more massive and 0.7 times bigger compared with our Sun. The surface temperature is 4255 with its spectral types of K6V
  • Number of Extrasolar Planets : 3
  • Name of the 1 Planet GJ 9827 b radius 0.136410 mass 0.015320 orbital distance 0.018660
  • Name of the 2 Planet GJ 9827 c radius 0.107000 mass 0.006040 orbital distance 0.038960
  • Name of the 3 Planet GJ 9827 d radius 0.174410 mass 0.010760 orbital distance 0.055500
    (Illustration of the GJ 9827's Planetary System)



    The Star GJ 9827 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.255 AU ( 38197789.4 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.353 AU ( 52799327.2 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.538 AU ( 80454490.2 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.791 AU ( 118392306.8 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star GJ 9827)



    Kopparapu's Recent Venus for Star GJ 9827 distance : 0.284 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star GJ 9827 distance : 0.360 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star GJ 9827 distance : 0.347 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star GJ 9827 distance : 0.381 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star GJ 9827 distance : 0.674 AU
    Kopparapu's Outer Boundary for Early Mars for Star GJ 9827 distance : 0.711 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star GJ 9827)



  • Original Kopparapu Recent Venus for Star GJ 9827 distance : 0.280 AU
  • Original Kopparapu Runaway Greenhouse for Star GJ 9827 distance : 0.372 AU
  • Original Kopparapu Moist Greenhouse for Star GJ 9827 distance : 0.371 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star GJ 9827 distance : 0.685 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star GJ 9827 distance : 0.712 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star GJ 9827)



    (Position in Stellar Map of star GJ 9827 )



    (Zoomed position in Stellar Map of star GJ 9827 (zoom level 3))

    (Synthetic Spectrum of star GJ 367*)
    *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