Imaginary Picture of HD 38529 c

Display orbital revolution of HD 38529 c around the hoststar HD 38529
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Exoplanet Name : HD 38529 c
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 23.7000 (Mjup) 7535.1306 (Mearth)
Semi Major Axis / Orbital Distance Calculated 3.6950 (AU) 3.6950 (AU Est.)
Eccentricity : 0.3600
Orbital Period(Yrs) 5.8445
Orbital Period(Observed/Estimated) 2134.76 (Days Obs.) 2132.46 (Days Est.)
Surface Gravity (G Earth) 72.7693
Star Radiation at Atmospheric Boundary: 563.3 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 217.4 (K)
Blackbody T 0.3(K) 204.2 (K)
Blackbody T 0.7(K) 165.2 (K)
Tidally Locked Blackbody T 0.1(K) 258.6 (K)
Tidally Locked Blackbody T 0.3(K) 242.8 (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 38529
Alternate Name :
Star Distance(LY) : 128.1
Stellar Radius(Rsun) : 2.4 (Rsun Measured)
Stellar Mass(Msun) : 1.5 (Msun Measured) 1.5 (Msun Estimated)
Star Age : 3.3 (GY)
Temperature : 5697 (K)
Spectral type : G4 IV
UV portion[%]: 7.6
Visible portion[%]: 44.4
IR portion[%]: 48.0
Metalicity : 0.3
Absolute Magnitude: 3.0
Apparent Magnitude: 5.9
Right Ascension(RA) 86.6455
Declination (DEC) 1.1681
Hubble Space Telescope Guide Star Catalog (GSC) ID 00116-01316
Discovered by
Discovery Paper - Authors "S. Desidera, M. Barbieri"
Discovery Paper - Title Properties of planets in binary systems. The role of binary separation
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HD+38529+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/HD%2038529%20A%20c/
HD 38529 c
HD 38529 c

  • HD 38529 c is an exoplanet orbiting the star HD 38529, located about 128.1 light-years (39.3 pc) away from Solar System. Its discovery was publicly announced on 2002.
  • The host star HD 38529 has apparent magnitude of 5.9, with absolute magnitude of 3.0.
  • It is 1.5 times more massive and 2.4 times bigger compared with our Sun. The surface temperature is 5697 with its spectral types of G4 IV
  • In this planetary system, the extrasolar planet HD 38529 c orbits around the star HD 38529 every 2134.8 days with its orbital distance of 3.69 AU ( 552764132.2 km)
  • (Projected orbit of HD 38529 c around its host star HD 38529)


  • The Star HD 38529 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.716 AU ( 256649473.5 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 2.371 AU ( 354756642.9 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 3.613 AU ( 540570616.4 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 5.317 AU ( 795473342.9 km)
  • Radiation at Planetary Boundary of HD 38529 c : 563.30 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 38529)



  • Kopparapu Recent Venus for Star HD 38529 distance : 1.787 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star HD 38529 distance : 2.263 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HD 38529 distance : 2.185 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star HD 38529 distance : 2.396 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 38529 distance : 4.004 AU
  • Kopparapu Outer Boundary for Early Mars for Star HD 38529 distance : 4.224 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 38529)



  • Original Kopparapu Recent Venus for Star HD 38529 distance : 1.786 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 38529 distance : 2.326 AU
  • Original Kopparapu Moist Greenhouse for Star HD 38529 distance : 2.364 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 38529 distance : 4.075 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 38529 distance : 4.237 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 38529)



    (Position in Stellar Map of star HD 38529 and its Exoplanet HD 38529 c)



    (Zoomed position in Stellar Map of star HD 38529 and its Exoplanet HD 38529 c (zoom level 3))

    (Synthetic Spectrum of star HD 38529*)
    *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