Imaginary Picture of HD 80606 b
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Exoplanet Name : HD 80606 b
Alternate Name :
Radius (Rjup / Re): 0.9210 (Rjup) 10.3235 (Rearth)
Mass (Mjup / Me): 3.9400 (Mjup) 1252.6757 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.4490 (AU) 0.4490 (AU Est.)
Eccentricity : 0.9337
Orbital Period(Yrs) 0.3051
Orbital Period(Observed/Estimated) 111.44 (Days Obs.) 111.01 (Days Est.)
Star Radiation at Atmospheric Boundary: 5932.3 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 391.7 (K)
Blackbody T 0.3(K) 367.8 (K)
Blackbody T 0.7(K) 297.6 (K)
Tidally Locked Blackbody T 0.1(K) 465.8 (K)
Tidally Locked Blackbody T 0.3(K) 437.4 (K)
Size Class: Jupiter-size
Mass Class:
Detection Type : Primary Transit
Mass Detection : Radial Velocity
Radius Detection :
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : HD 80606
Alternate Name :
Star Distance(LY) : 212.8
Stellar Radius(Rsun) : 1.0 (Rsun Measured)
Stellar Mass(Msun) : 1.0 (Msun Measured) 1.0 (Msun Estimated)
Star Age : 7.6 (GY)
Temperature : 5645 (K)
Spectral type : G5
Metalicity : 0.4
Absolute Magnitude: 4.9
Apparent Magnitude: 8.9
Right Ascension(RA) 140.6565
Declination (DEC) 50.6036
Hubble Space Telescope Guide Star Catalog (GSC) ID 03431-00046
Discovered by
Discovery Paper - Authors HOG E.; FABRICIUS C.; MAKAROV V.V.; URBAN S.; CORBIN T.; WYCOFF G.; BASTIAN U.; SCHWEKENDIEK P.; WICENEC A.
Discovery Paper - Title The Tycho-2 catalogue of the 2.5 million brightest stars.
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HD+80606+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/HD%2080606%20b/
HD 80606 b
HD 80606 b

  • HD 80606 b is an exoplanet orbiting the star HD 80606, located about 212.8 light-years (65.2 pc) away from Solar System. Its discovery was publicly announced on 2001.
  • The host star HD 80606 has apparent magnitude of 8.9, with absolute magnitude of 4.9.
  • It is 1.0 times more massive and 1.0 times bigger compared with our Sun. The surface temperature is 5645 with its spectral types of G5
  • In this planetary system, the extrasolar planet HD 80606 b orbits around the star HD 80606 every 111.4 days with its orbital distance of 0.45 AU ( 67169443.9 km)
  • (Projected orbit of HD 80606 b around its host star HD 80606)


  • The Star HD 80606 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.677 AU ( 101207356.3 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.935 AU ( 139895015.1 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.425 AU ( 213169044.3 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.097 AU ( 313687587.0 km)
  • Radiation at Planetary Boundary of HD 80606 b : 5932.26 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 80606)



  • Kopparapu Recent Venus for Star HD 80606 distance : 0.707 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star HD 80606 distance : 0.895 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HD 80606 distance : 0.864 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star HD 80606 distance : 0.948 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 80606 distance : 1.586 AU
  • Kopparapu Outer Boundary for Early Mars for Star HD 80606 distance : 1.673 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 80606)



  • Original Kopparapu Recent Venus for Star HD 80606 distance : 0.706 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 80606 distance : 0.920 AU
  • Original Kopparapu Moist Greenhouse for Star HD 80606 distance : 0.934 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 80606 distance : 1.614 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 80606 distance : 1.678 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 80606)



    (Position in Stellar Map of star HD 80606 and its Exoplanet HD 80606 b)



    (Zoomed position in Stellar Map of star HD 80606 and its Exoplanet HD 80606 b (zoom level 3))