Imaginary Picture of GJ 758 b

Display orbital revolution of GJ 758 b around the hoststar GJ 758
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Exoplanet Name : GJ 758 b
Alternate Name :
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 37.9000 (Mjup) 12049.8502 (Mearth)
Semi Major Axis / Orbital Distance Calculated 33.0000 (AU) 33.0000 (AU Est.)
Eccentricity : 0.4200
Orbital Period(Yrs) 298.4176
Orbital Period(Observed/Estimated) 109000.00 (Days Obs.) 70303.23 (Days Est.)
Star Radiation at Atmospheric Boundary: 0.8 (W/m2)
Measured Temperature (K) 741.0 (K)
Blackbody T 0.1(K) 41.6 (K)
Blackbody T 0.3(K) 39.1 (K)
Blackbody T 0.7(K) 31.6 (K)
Tidally Locked Blackbody T 0.1(K) 49.5 (K)
Tidally Locked Blackbody T 0.3(K) 46.5 (K)
Size Class: Jupiter-size
Mass Class:
Detection Type : Imaging
Mass Detection : Spectrum
Radius Detection :
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : GJ 758
Alternate Name : "Gliese 758, HR 7368, HD 182488"
Star Distance(LY) : 50.6
Stellar Radius(Rsun) : 0.9 (Rsun Measured)
Stellar Mass(Msun) : 1.0 (Msun Measured) 0.4 (Msun Estimated)
Star Age : 8.2 (GY)
Temperature : 5425 (K)
Spectral type : K0V
Metalicity : 0.2
Absolute Magnitude: 5.4
Apparent Magnitude: 6.4
Right Ascension(RA) 290.8917
Declination (DEC) 33.2219
Hubble Space Telescope Guide Star Catalog (GSC) ID 02658-02556
Discovered by
Discovery Paper - Authors 0
Discovery Paper - Title 0
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=GJ+758+&submit=SIMBAD+search
Open Exoplanet Database Link 0
GJ 758 b
GJ 758 b

  • GJ 758 b is an exoplanet orbiting the star GJ 758, located about 50.6 light-years (15.5 pc) away from Solar System. Its discovery was publicly announced on 2009.
  • The host star GJ 758 has apparent magnitude of 6.4, with absolute magnitude of 5.4.
  • It is 1.0 times more massive and 0.9 times bigger compared with our Sun. The surface temperature is 5425 with its spectral types of K0V
  • In this planetary system, the extrasolar planet GJ 758 b orbits around the star GJ 758 every 109000.0 days with its orbital distance of 33.00 AU ( 4936729733.1 km)
  • (Projected orbit of GJ 758 b around its host star GJ 758)


  • The Star GJ 758 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.561 AU ( 83934454.0 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.776 AU ( 116019350.1 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.182 AU ( 176787814.6 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.739 AU ( 260151013.7 km)
  • Radiation at Planetary Boundary of GJ 758 b : 0.76 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star GJ 758)



  • Kopparapu Recent Venus for Star GJ 758 distance : 0.594 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star GJ 758 distance : 0.752 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star GJ 758 distance : 0.726 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star GJ 758 distance : 0.796 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star GJ 758 distance : 1.341 AU
  • Kopparapu Outer Boundary for Early Mars for Star GJ 758 distance : 1.415 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star GJ 758)



  • Original Kopparapu Recent Venus for Star GJ 758 distance : 0.591 AU
  • Original Kopparapu Runaway Greenhouse for Star GJ 758 distance : 0.773 AU
  • Original Kopparapu Moist Greenhouse for Star GJ 758 distance : 0.781 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star GJ 758 distance : 1.365 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star GJ 758 distance : 1.419 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star GJ 758)



    (Position in Stellar Map of star GJ 758 and its Exoplanet GJ 758 b)



    (Zoomed position in Stellar Map of star GJ 758 and its Exoplanet GJ 758 b (zoom level 3))