Imaginary Picture of HD 73534 b

Display orbital revolution of HD 73534 b around the hoststar HD 73534
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Exoplanet Name : HD 73534 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 1.1500 (Mjup) 365.6287 (Mearth)
Semi Major Axis / Orbital Distance Calculated 3.1500 (AU) 3.1500 (AU Est.)
Eccentricity : 0.0460
Orbital Period(Yrs) 4.9280
Orbital Period(Observed/Estimated) 1800.00 (Days Obs.) 1797.88 (Days Est.)
Surface Gravity (G Earth) 3.5310
Star Radiation at Atmospheric Boundary: 521.9 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 213.3 (K)
Blackbody T 0.3(K) 200.3 (K)
Blackbody T 0.7(K) 162.1 (K)
Tidally Locked Blackbody T 0.1(K) 253.7 (K)
Tidally Locked Blackbody T 0.3(K) 238.2 (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 73534
Alternate Name :
Star Distance(LY) : 279.7
Stellar Radius(Rsun) : 2.6 (Rsun Measured)
Stellar Mass(Msun) : 1.3 (Msun Measured) 1.3 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 4952 (K)
Spectral type : G5IV
UV portion[%]: 3.0
Visible portion[%]: 36.6
IR portion[%]: 60.4
Metalicity : 0.2
Absolute Magnitude: 3.6
Apparent Magnitude: 8.2
Right Ascension(RA) 129.8158
Declination (DEC) 12.9603
Hubble Space Telescope Guide Star Catalog (GSC) ID 00805-00024
Discovered by
Discovery Paper - Authors 0
Discovery Paper - Title
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.harvard.edu/simbad/sim-basic?Ident=HD+73534+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/HD%2073534%20b/
HD 73534 b
HD 73534 b

  • HD 73534 b is an exoplanet orbiting the star HD 73534, located about 279.7 light-years (85.8 pc) away from Solar System. Its discovery was publicly announced on 2009.
  • The host star HD 73534 has apparent magnitude of 8.2, with absolute magnitude of 3.6.
  • It is 1.3 times more massive and 2.6 times bigger compared with our Sun. The surface temperature is 4952 with its spectral types of G5IV
  • In this planetary system, the extrasolar planet HD 73534 b orbits around the star HD 73534 every 1800.0 days with its orbital distance of 3.15 AU ( 471233292.7 km)
  • (Projected orbit of HD 73534 b around its host star HD 73534)


  • The Star HD 73534 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.408 AU ( 210603341.9 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.946 AU ( 291108855.8 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.965 AU ( 443585473.9 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 4.363 AU ( 652755457.1 km)
  • Radiation at Planetary Boundary of HD 73534 b : 521.91 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 73534)



  • Kopparapu Recent Venus for Star HD 73534 distance : 1.526 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star HD 73534 distance : 1.933 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HD 73534 distance : 1.867 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star HD 73534 distance : 2.049 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 73534 distance : 3.509 AU
  • Kopparapu Outer Boundary for Early Mars for Star HD 73534 distance : 3.702 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 73534)



  • Original Kopparapu Recent Venus for Star HD 73534 distance : 1.510 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 73534 distance : 1.992 AU
  • Original Kopparapu Moist Greenhouse for Star HD 73534 distance : 1.997 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 73534 distance : 3.568 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 73534 distance : 3.711 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 73534)



    (Position in Stellar Map of star HD 73534 and its Exoplanet HD 73534 b)



    (Zoomed position in Stellar Map of star HD 73534 and its Exoplanet HD 73534 b (zoom level 3))

    (Synthetic Spectrum of star HD 73534*)
    *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