G 204-39

Display orbital revolution around the star G 204-39
Imaginary Picture of Star G 204-39
Star Name : G 204-39
Alternate Name : "HIP 87938, 2MASS J17575096+4635182, GJ 4040, LHS 3343, BDK 9"
Star Distance (LY/pc): 45.6318 (LY) 13.9908 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 0.3669 (Rsun, estimated)
Stellar Mass (Msun): 0.3600 (Msun/observed) 0.3600 (Msun/estimated)
Spectral type : M3V
Metalicity : 0.0000
Absolute Magnitude : 10.91
Apparent Magnitude : 11.64
Right Ascension(RA) : 269.46236
Declination(DEC) : 46.58865
  • This is the G 204-39 . The star G 204-39 islocated about 45.6 light-years (14.0 pc) away from our Solar System.
  • The star G 204-39 has apparent magnitude of 11.6, with absolute magnitude of 10.9.
  • It is 0.4 times more massive and 0.4 times bigger compared with our Sun. The surface temperature is 3500 with its spectral types of M3V
  • Number of Extrasolar Planets : 1
  • Name of the 1 Planet G 204-39 b radius 0.907830 mass 29.000000 orbital distance 2685.000000
    (Illustration of the G 204-39's Planetary System)



    The Star G 204-39 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.097 AU ( 14567487.6 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.135 AU ( 20136074.7 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.205 AU ( 30682921.8 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.302 AU ( 45151263.6 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star G 204-39)



    Kopparapu's Recent Venus for Star G 204-39 distance : 0.134 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star G 204-39 distance : 0.170 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star G 204-39 distance : 0.164 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star G 204-39 distance : 0.179 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star G 204-39 distance : 0.331 AU
    Kopparapu's Outer Boundary for Early Mars for Star G 204-39 distance : 0.349 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star G 204-39)



  • Original Kopparapu Recent Venus for Star G 204-39 distance : 0.133 AU
  • Original Kopparapu Runaway Greenhouse for Star G 204-39 distance : 0.176 AU
  • Original Kopparapu Moist Greenhouse for Star G 204-39 distance : 0.176 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star G 204-39 distance : 0.336 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star G 204-39 distance : 0.349 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star G 204-39)



    (Position in Stellar Map of star G 204-39 )



    (Zoomed position in Stellar Map of star G 204-39 (zoom level 3))

    (Synthetic Spectrum of star GJ 581*)
    *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