Imaginary Picture of HD 102365 b
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Exoplanet Name : HD 102365 b
Alternate Name :
Radius (Rjup / Re): 0.2187 (Rjup) 2.4512 (Rearth)
Mass (Mjup / Me): 0.0500 (Mjup) 15.8969 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.4600 (AU) 0.4600 (AU Est.)
Eccentricity : 0.3400
Orbital Period(Yrs) 0.3343
Orbital Period(Observed/Estimated) 122.10 (Days Obs.) 123.60 (Days Est.)
Star Radiation at Atmospheric Boundary: 3445.1 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 341.9 (K)
Blackbody T 0.3(K) 321.1 (K)
Blackbody T 0.7(K) 259.8 (K)
Tidally Locked Blackbody T 0.1(K) 406.6 (K)
Tidally Locked Blackbody T 0.3(K) 381.9 (K)
Size Class: sub-Neptune-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 102365
Alternate Name :
Star Distance(LY) : 30.1
Stellar Radius(Rsun) : 0.8 (Rsun Estimated)
Stellar Mass(Msun) : 0.8 (Msun Measured) 0.9 (Msun Estimated)
Star Age : 9.0 (GY)
Temperature : 5650 (K)
Spectral type : G2V
Metalicity : -0.3
Absolute Magnitude: 5.1
Apparent Magnitude: 4.9
Right Ascension(RA) 176.6295
Declination (DEC) -40.5003
Hubble Space Telescope Guide Star Catalog (GSC) ID
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+102365+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/HD%20102365%20b/
HD 102365 b
HD 102365 b

  • HD 102365 b is an exoplanet orbiting the star HD 102365, located about 30.1 light-years ( 9.2 pc) away from Solar System. Its discovery was publicly announced on 2011.
  • The host star HD 102365 has apparent magnitude of 4.9, with absolute magnitude of 5.1.
  • It is 0.8 times more massive and 0.8 times bigger compared with our Sun. The surface temperature is 5650 with its spectral types of G2V
  • In this planetary system, the extrasolar planet HD 102365 b orbits around the star HD 102365 every 122.1 days with its orbital distance of 0.46 AU ( 68815020.5 km)
  • (Projected orbit of HD 102365 b around its host star HD 102365)


  • The Star HD 102365 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.528 AU ( 79015604.8 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.730 AU ( 109220215.1 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.112 AU ( 166427437.5 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.637 AU ( 244905264.9 km)
  • Radiation at Planetary Boundary of HD 102365 b : 3445.07 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 102365)



  • Kopparapu Recent Venus for Star HD 102365 distance : 0.552 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star HD 102365 distance : 0.699 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HD 102365 distance : 0.675 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star HD 102365 distance : 0.740 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 102365 distance : 1.238 AU
  • Kopparapu Outer Boundary for Early Mars for Star HD 102365 distance : 1.306 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 102365)



  • Original Kopparapu Recent Venus for Star HD 102365 distance : 0.551 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 102365 distance : 0.718 AU
  • Original Kopparapu Moist Greenhouse for Star HD 102365 distance : 0.729 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 102365 distance : 1.260 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 102365 distance : 1.310 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 102365)



    (Position in Stellar Map of star HD 102365 and its Exoplanet HD 102365 b)



    (Zoomed position in Stellar Map of star HD 102365 and its Exoplanet HD 102365 b (zoom level 3))