Imaginary Picture of HD 164604 b

Display orbital revolution of HD 164604 b around the hoststar HD 164604
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Exoplanet Name : HD 164604 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 1.9980 (Mjup) 635.2401 (Mearth)
Semi Major Axis / Orbital Distance Calculated 1.3310 (AU) 1.3310 (AU Est.)
Eccentricity : 0.3500
Orbital Period(Yrs) 1.7562
Orbital Period(Observed/Estimated) 641.47 (Days Obs.) 627.06 (Days Est.)
Surface Gravity (G Earth) 6.1347
Star Radiation at Atmospheric Boundary: 196.6 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 167.1 (K)
Blackbody T 0.3(K) 156.9 (K)
Blackbody T 0.7(K) 127.0 (K)
Tidally Locked Blackbody T 0.1(K) 198.7 (K)
Tidally Locked Blackbody T 0.3(K) 186.6 (K)
Size Class: Jupiter-size
Mass Class:
Detection Type : Radial Velocity
Mass Detection : Radial Velocity
Radius Detection :
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : HD 164604
Alternate Name :
Star Distance(LY) : 125.7
Stellar Radius(Rsun) : 0.7 (Rsun Estimated)
Stellar Mass(Msun) : 0.8 (Msun Measured) 0.8 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 4960 (K)
Spectral type : K2V
UV portion[%]: 3.0
Visible portion[%]: 36.7
IR portion[%]: 60.3
Metalicity : -0.2
Absolute Magnitude: 6.8
Apparent Magnitude: 9.7
Right Ascension(RA) 270.7789
Declination (DEC) -28.5606
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+164604+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/HD%20164604%20b/
HD 164604 b
HD 164604 b

  • HD 164604 b is an exoplanet orbiting the star HD 164604, located about 125.7 light-years (38.5 pc) away from Solar System. Its discovery was publicly announced on 2010.
  • The host star HD 164604 has apparent magnitude of 9.7, with absolute magnitude of 6.8.
  • It is 0.8 times more massive and 0.7 times bigger compared with our Sun. The surface temperature is 4960 with its spectral types of K2V
  • In this planetary system, the extrasolar planet HD 164604 b orbits around the star HD 164604 every 641.5 days with its orbital distance of 1.33 AU ( 199114765.9 km)
  • (Projected orbit of HD 164604 b around its host star HD 164604)


  • The Star HD 164604 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.365 AU ( 54616253.3 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.505 AU ( 75493935.0 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.769 AU ( 115036050.2 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.132 AU ( 169280587.3 km)
  • Radiation at Planetary Boundary of HD 164604 b : 196.60 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 164604)



  • Kopparapu Recent Venus for Star HD 164604 distance : 0.396 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star HD 164604 distance : 0.501 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HD 164604 distance : 0.484 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star HD 164604 distance : 0.531 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 164604 distance : 0.909 AU
  • Kopparapu Outer Boundary for Early Mars for Star HD 164604 distance : 0.959 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 164604)



  • Original Kopparapu Recent Venus for Star HD 164604 distance : 0.391 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 164604 distance : 0.516 AU
  • Original Kopparapu Moist Greenhouse for Star HD 164604 distance : 0.518 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 164604 distance : 0.925 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 164604 distance : 0.962 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 164604)



    (Position in Stellar Map of star HD 164604 and its Exoplanet HD 164604 b)



    (Zoomed position in Stellar Map of star HD 164604 and its Exoplanet HD 164604 b (zoom level 3))

    (Synthetic Spectrum of star HD 164604*)
    *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