Imaginary Picture of HD 75289 b
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Exoplanet Name : HD 75289 b
Alternate Name :
Radius (Rjup / Re): 1.0300 (Rjup) 11.5453 (Rearth)
Mass (Mjup / Me): 0.4700 (Mjup) 149.4309 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0460 (AU) 0.0460 (AU Est.)
Eccentricity : 0.0211
Orbital Period(Yrs) 0.0096
Orbital Period(Observed/Estimated) 3.51 (Days Obs.) 3.52 (Days Est.)
Star Radiation at Atmospheric Boundary: 1270325.0 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1498.4 (K)
Blackbody T 0.3(K) 1407.1 (K)
Blackbody T 0.7(K) 1138.5 (K)
Tidally Locked Blackbody T 0.1(K) 1781.9 (K)
Tidally Locked Blackbody T 0.3(K) 1673.4 (K)
Size Class: Jupiter-size
Mass Class:
Detection Type : Radial Velocity
Mass Detection : Radial Velocity
Radius Detection : Theoretical
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : HD 75289
Alternate Name :
Star Distance(LY) : 95.1
Stellar Radius(Rsun) : 1.2 (Rsun Measured)
Stellar Mass(Msun) : 1.1 (Msun Measured) 1.1 (Msun Estimated)
Star Age : 5.0 (GY)
Temperature : 6120 (K)
Spectral type : G0 V
Metalicity : 0.3
Absolute Magnitude: 4.0
Apparent Magnitude: 6.3
Right Ascension(RA) 131.9183
Declination (DEC) -41.7367
Hubble Space Telescope Guide Star Catalog (GSC) ID
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+75289+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/HD%2075289%20A%20b/
HD 75289 b
HD 75289 b

  • HD 75289 b is an exoplanet orbiting the star HD 75289, located about 95.1 light-years (29.1 pc) away from Solar System. Its discovery was publicly announced on 1999.
  • The host star HD 75289 has apparent magnitude of 6.3, with absolute magnitude of 4.0.
  • It is 1.1 times more massive and 1.2 times bigger compared with our Sun. The surface temperature is 6120 with its spectral types of G0 V
  • In this planetary system, the extrasolar planet HD 75289 b orbits around the star HD 75289 every 3.5 days with its orbital distance of 0.05 AU ( 6881502.1 km)
  • (Projected orbit of HD 75289 b around its host star HD 75289)


  • The Star HD 75289 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.014 AU ( 151729829.5 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.402 AU ( 209730276.1 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.136 AU ( 319582527.6 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 3.144 AU ( 470279689.3 km)
  • Radiation at Planetary Boundary of HD 75289 b : 1270325.05 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 75289)



  • Kopparapu Recent Venus for Star HD 75289 distance : 1.030 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star HD 75289 distance : 1.304 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HD 75289 distance : 1.259 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star HD 75289 distance : 1.380 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 75289 distance : 2.284 AU
  • Kopparapu Outer Boundary for Early Mars for Star HD 75289 distance : 2.409 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 75289)



  • Original Kopparapu Recent Venus for Star HD 75289 distance : 1.038 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 75289 distance : 1.338 AU
  • Original Kopparapu Moist Greenhouse for Star HD 75289 distance : 1.374 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 75289 distance : 2.325 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 75289 distance : 2.418 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 75289)



    (Position in Stellar Map of star HD 75289 and its Exoplanet HD 75289 b)



    (Zoomed position in Stellar Map of star HD 75289 and its Exoplanet HD 75289 b (zoom level 3))