Imaginary Picture of HD 129445 b

Display orbital revolution of HD 129445 b around the hoststar HD 129445
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Exoplanet Name : HD 129445 b
Alternate Name :
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 1.6000 (Mjup) 508.7008 (Mearth)
Semi Major Axis / Orbital Distance Calculated 2.9000 (AU) 2.9000 (AU Est.)
Eccentricity : 0.7000
Orbital Period(Yrs) 5.0375
Orbital Period(Observed/Estimated) 1840.00 (Days Obs.) 1812.88 (Days Est.)
Star Radiation at Atmospheric Boundary: 123.7 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 148.8 (K)
Blackbody T 0.3(K) 139.8 (K)
Blackbody T 0.7(K) 113.1 (K)
Tidally Locked Blackbody T 0.1(K) 177.0 (K)
Tidally Locked Blackbody T 0.3(K) 166.2 (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 129445
Alternate Name :
Star Distance(LY) : 231.0
Stellar Radius(Rsun) : 1.0 (Rsun Estimated)
Stellar Mass(Msun) : 1.0 (Msun Measured) 1.0 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 5440 (K)
Spectral type : G8V
Metalicity : 0.2
Absolute Magnitude: 4.5
Apparent Magnitude: 8.8
Right Ascension(RA) 221.5128
Declination (DEC) -68.7625
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+129445+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/HD%20129445%20b/
HD 129445 b
HD 129445 b

  • HD 129445 b is an exoplanet orbiting the star HD 129445, located about 231.0 light-years (70.8 pc) away from Solar System. Its discovery was publicly announced on 2010.
  • The host star HD 129445 has apparent magnitude of 8.8, with absolute magnitude of 4.5.
  • It is 1.0 times more massive and 1.0 times bigger compared with our Sun. The surface temperature is 5440 with its spectral types of G8V
  • In this planetary system, the extrasolar planet HD 129445 b orbits around the star HD 129445 every 1840.0 days with its orbital distance of 2.90 AU ( 433833825.0 km)
  • (Projected orbit of HD 129445 b around its host star HD 129445)


  • The Star HD 129445 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.631 AU ( 94397757.8 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.872 AU ( 130482370.3 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.329 AU ( 198826256.7 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.956 AU ( 292581546.8 km)
  • Radiation at Planetary Boundary of HD 129445 b : 123.71 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 129445)



  • Kopparapu Recent Venus for Star HD 129445 distance : 0.667 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star HD 129445 distance : 0.845 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HD 129445 distance : 0.816 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star HD 129445 distance : 0.895 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 129445 distance : 1.507 AU
  • Kopparapu Outer Boundary for Early Mars for Star HD 129445 distance : 1.589 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 129445)



  • Original Kopparapu Recent Venus for Star HD 129445 distance : 0.664 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 129445 distance : 0.869 AU
  • Original Kopparapu Moist Greenhouse for Star HD 129445 distance : 0.878 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 129445 distance : 1.533 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 129445 distance : 1.594 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 129445)



    (Position in Stellar Map of star HD 129445 and its Exoplanet HD 129445 b)



    (Zoomed position in Stellar Map of star HD 129445 and its Exoplanet HD 129445 b (zoom level 3))