Imaginary Picture of HD 109246 b

Display orbital revolution of HD 109246 b around the hoststar HD 109246
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Exoplanet Name : HD 109246 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 0.7700 (Mjup) 244.8123 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.3300 (AU) 0.3300 (AU Est.)
Eccentricity : 0.1200
Orbital Period(Yrs) 0.1869
Orbital Period(Observed/Estimated) 68.27 (Days Obs.) 68.90 (Days Est.)
Surface Gravity (G Earth) 2.3642
Star Radiation at Atmospheric Boundary: 13665.3 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 482.6 (K)
Blackbody T 0.3(K) 453.2 (K)
Blackbody T 0.7(K) 366.7 (K)
Tidally Locked Blackbody T 0.1(K) 573.9 (K)
Tidally Locked Blackbody T 0.3(K) 538.9 (K)
Size Class: Jupiter-size
Mass Class:
Detection Type : Radial Velocity
Mass Detection :
Radius Detection :
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : HD 109246
Alternate Name :
Star Distance(LY) : 222.2
Stellar Radius(Rsun) : 1.0 (Rsun Measured)
Stellar Mass(Msun) : 1.0 (Msun Measured) 1.0 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 5844 (K)
Spectral type : GOV
UV portion[%]: 7.8
Visible portion[%]: 44.8
IR portion[%]: 47.4
Metalicity : 0.1
Absolute Magnitude: 4.6
Apparent Magnitude: 8.8
Right Ascension(RA) 188.0300
Declination (DEC) 74.4894
Hubble Space Telescope Guide Star Catalog (GSC) ID 04400-00099
Discovered by
Discovery Paper - Authors 0
Discovery Paper - Title
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HD+109246+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/HD%20109246%20b/
HD 109246 b
HD 109246 b

  • HD 109246 b is an exoplanet orbiting the star HD 109246, located about 222.2 light-years (68.1 pc) away from Solar System. Its discovery was publicly announced on 2010.
  • The host star HD 109246 has apparent magnitude of 8.8, with absolute magnitude of 4.6.
  • It is 1.0 times more massive and 1.0 times bigger compared with our Sun. The surface temperature is 5844 with its spectral types of GOV
  • In this planetary system, the extrasolar planet HD 109246 b orbits around the star HD 109246 every 68.3 days with its orbital distance of 0.33 AU ( 49367297.3 km)
  • (Projected orbit of HD 109246 b around its host star HD 109246)


  • The Star HD 109246 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.755 AU ( 112896037.4 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.043 AU ( 156051827.0 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.590 AU ( 237788450.1 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.339 AU ( 349916121.2 km)
  • Radiation at Planetary Boundary of HD 109246 b : 13665.27 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 109246)



  • Kopparapu Recent Venus for Star HD 109246 distance : 0.779 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star HD 109246 distance : 0.987 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HD 109246 distance : 0.953 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star HD 109246 distance : 1.045 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 109246 distance : 1.739 AU
  • Kopparapu Outer Boundary for Early Mars for Star HD 109246 distance : 1.834 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 109246)



  • Original Kopparapu Recent Venus for Star HD 109246 distance : 0.781 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 109246 distance : 1.014 AU
  • Original Kopparapu Moist Greenhouse for Star HD 109246 distance : 1.034 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 109246 distance : 1.770 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 109246 distance : 1.841 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 109246)



    (Position in Stellar Map of star HD 109246 and its Exoplanet HD 109246 b)



    (Zoomed position in Stellar Map of star HD 109246 and its Exoplanet HD 109246 b (zoom level 3))

    (Synthetic Spectrum of star HD 109246*)
    *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