Imaginary Picture of HD 102329 b

Display orbital revolution of HD 102329 b around the hoststar HD 102329
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Exoplanet Name : HD 102329 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 5.9000 (Mjup) 1875.8342 (Mearth)
Semi Major Axis / Orbital Distance Calculated 2.0100 (AU) 2.0100 (AU Est.)
Eccentricity : 0.2110
Orbital Period(Yrs) 2.1303
Orbital Period(Observed/Estimated) 778.10 (Days Obs.) 745.36 (Days Est.)
Surface Gravity (G Earth) 18.1156
Star Radiation at Atmospheric Boundary: 6556.7 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 401.6 (K)
Blackbody T 0.3(K) 377.2 (K)
Blackbody T 0.7(K) 305.2 (K)
Tidally Locked Blackbody T 0.1(K) 477.6 (K)
Tidally Locked Blackbody T 0.3(K) 448.5 (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 102329
Alternate Name :
Star Distance(LY) : 515.3
Stellar Radius(Rsun) : 6.3 (Rsun Measured)
Stellar Mass(Msun) : 1.9 (Msun Measured) 1.8 (Msun Estimated)
Star Age : 1.6 (GY)
Temperature : 4830 (K)
Spectral type : K3
UV portion[%]: 2.5
Visible portion[%]: 35.6
IR portion[%]: 61.8
Metalicity : 0.3
Absolute Magnitude: 2.0
Apparent Magnitude: 8.0
Right Ascension(RA) 176.6958
Declination (DEC) 3.4742
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors
Discovery Paper - Title
Discovery Paper - Journal
Discovery Paper - URL
SIMBAD LINK
Open Exoplanet Database Link
HD 102329 b
HD 102329 b

  • HD 102329 b is an exoplanet orbiting the star HD 102329, located about 515.3 light-years (158.0 pc) away from Solar System. Its discovery was publicly announced on 2011.
  • The host star HD 102329 has apparent magnitude of 8.0, with absolute magnitude of 2.0.
  • It is 1.9 times more massive and 6.3 times bigger compared with our Sun. The surface temperature is 4830 with its spectral types of K3
  • In this planetary system, the extrasolar planet HD 102329 b orbits around the star HD 102329 every 778.1 days with its orbital distance of 2.01 AU ( 300691720.1 km)
  • (Projected orbit of HD 102329 b around its host star HD 102329)


  • The Star HD 102329 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 3.184 AU ( 476313535.8 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 4.401 AU ( 658389782.1 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 6.706 AU ( 1003240326.6 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 9.869 AU ( 1476312089.7 km)
  • Radiation at Planetary Boundary of HD 102329 b : 6556.65 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 102329)



  • Kopparapu Recent Venus for Star HD 102329 distance : 3.471 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star HD 102329 distance : 4.395 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HD 102329 distance : 4.245 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star HD 102329 distance : 4.659 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 102329 distance : 8.021 AU
  • Kopparapu Outer Boundary for Early Mars for Star HD 102329 distance : 8.461 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 102329)



  • Original Kopparapu Recent Venus for Star HD 102329 distance : 3.430 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 102329 distance : 4.532 AU
  • Original Kopparapu Moist Greenhouse for Star HD 102329 distance : 4.538 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 102329 distance : 8.155 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 102329 distance : 8.480 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 102329)



    (Position in Stellar Map of star HD 102329 and its Exoplanet HD 102329 b)



    (Zoomed position in Stellar Map of star HD 102329 and its Exoplanet HD 102329 b (zoom level 3))

    (Synthetic Spectrum of star HD 102329*)
    *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