Imaginary Picture of HD 187085 b

Display orbital revolution of HD 187085 b around the hoststar HD 187085
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Exoplanet Name : HD 187085 b
Alternate Name :
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 0.7500 (Mjup) 238.4535 (Mearth)
Semi Major Axis / Orbital Distance Calculated 2.0500 (AU) 2.0500 (AU Est.)
Eccentricity : 0.4700
Orbital Period(Yrs) 2.6994
Orbital Period(Observed/Estimated) 986.00 (Days Obs.) 970.60 (Days Est.)
Star Radiation at Atmospheric Boundary: 524.4 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 213.6 (K)
Blackbody T 0.3(K) 200.6 (K)
Blackbody T 0.7(K) 162.3 (K)
Tidally Locked Blackbody T 0.1(K) 254.0 (K)
Tidally Locked Blackbody T 0.3(K) 238.5 (K)
Size Class: Jupiter-size
Mass Class:
Detection Type : Radial Velocity
Mass Detection :
Radius Detection :
Habitability by Solar Eq. Astronomical Unit: Habitable
Habitability by Kopparapu: Not habitable
Star Name : HD 187085
Alternate Name :
Star Distance(LY) : 143.6
Stellar Radius(Rsun) : 1.1 (Rsun Estimated)
Stellar Mass(Msun) : 1.2 (Msun Measured) 1.2 (Msun Estimated)
Star Age : 3.3 (GY)
Temperature : 6075 (K)
Spectral type : G0 V
Metalicity : 0.1
Absolute Magnitude: 4.0
Apparent Magnitude: 7.2
Right Ascension(RA) 297.3915
Declination (DEC) -37.7806
Hubble Space Telescope Guide Star Catalog (GSC) ID 07933-02470
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+187085+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/HD%20187085%20b/
HD 187085 b
HD 187085 b

  • HD 187085 b is an exoplanet orbiting the star HD 187085, located about 143.6 light-years (44.0 pc) away from Solar System. Its discovery was publicly announced on 2006.
  • The host star HD 187085 has apparent magnitude of 7.2, with absolute magnitude of 4.0.
  • It is 1.2 times more massive and 1.1 times bigger compared with our Sun. The surface temperature is 6075 with its spectral types of G0 V
  • In this planetary system, the extrasolar planet HD 187085 b orbits around the star HD 187085 every 986.0 days with its orbital distance of 2.05 AU ( 306675634.9 km)
  • (Projected orbit of HD 187085 b around its host star HD 187085)


  • The Star HD 187085 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.918 AU ( 137380944.9 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.269 AU ( 189896367.7 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.934 AU ( 289360040.5 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.846 AU ( 425805975.6 km)
  • Radiation at Planetary Boundary of HD 187085 b : 524.37 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 187085)



  • Kopparapu Recent Venus for Star HD 187085 distance : 0.935 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star HD 187085 distance : 1.184 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HD 187085 distance : 1.143 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star HD 187085 distance : 1.253 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 187085 distance : 2.076 AU
  • Kopparapu Outer Boundary for Early Mars for Star HD 187085 distance : 2.189 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 187085)



  • Original Kopparapu Recent Venus for Star HD 187085 distance : 0.942 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 187085 distance : 1.215 AU
  • Original Kopparapu Moist Greenhouse for Star HD 187085 distance : 1.246 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 187085 distance : 2.113 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 187085 distance : 2.197 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 187085)



    (Position in Stellar Map of star HD 187085 and its Exoplanet HD 187085 b)



    (Zoomed position in Stellar Map of star HD 187085 and its Exoplanet HD 187085 b (zoom level 3))