Imaginary Picture of HD 190984 b

Display orbital revolution of HD 190984 b around the hoststar HD 190984
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Exoplanet Name : HD 190984 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 3.1000 (Mjup) 985.6078 (Mearth)
Semi Major Axis / Orbital Distance Calculated 5.5000 (AU) 5.5000 (AU Est.)
Eccentricity : 0.5700
Orbital Period(Yrs) 13.3740
Orbital Period(Observed/Estimated) 4885.00 (Days Obs.) 4938.71 (Days Est.)
Surface Gravity (G Earth) 9.5183
Star Radiation at Atmospheric Boundary: 122.0 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 148.3 (K)
Blackbody T 0.3(K) 139.3 (K)
Blackbody T 0.7(K) 112.7 (K)
Tidally Locked Blackbody T 0.1(K) 176.4 (K)
Tidally Locked Blackbody T 0.3(K) 165.7 (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 190984
Alternate Name :
Star Distance(LY) : 597.4
Stellar Radius(Rsun) : 1.5 (Rsun Measured)
Stellar Mass(Msun) : 0.9 (Msun Measured) 0.9 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 5988 (K)
Spectral type : F8V
UV portion[%]: 7.8
Visible portion[%]: 44.8
IR portion[%]: 47.4
Metalicity : -0.5
Absolute Magnitude: 2.4
Apparent Magnitude: 8.8
Right Ascension(RA) 302.8780
Declination (DEC) -64.6206
Hubble Space Telescope Guide Star Catalog (GSC) ID 09094-00866
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+190984+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/HD%20190984%20b/
HD 190984 b
HD 190984 b

  • HD 190984 b is an exoplanet orbiting the star HD 190984, located about 597.4 light-years (183.2 pc) away from Solar System. Its discovery was publicly announced on 2009.
  • The host star HD 190984 has apparent magnitude of 8.8, with absolute magnitude of 2.4.
  • It is 0.9 times more massive and 1.5 times bigger compared with our Sun. The surface temperature is 5988 with its spectral types of F8V
  • In this planetary system, the extrasolar planet HD 190984 b orbits around the star HD 190984 every 4885.0 days with its orbital distance of 5.50 AU ( 822788288.9 km)
  • (Projected orbit of HD 190984 b around its host star HD 190984)


  • The Star HD 190984 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.188 AU ( 177792373.0 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.643 AU ( 245755522.2 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.503 AU ( 374477030.3 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 3.684 AU ( 551059354.9 km)
  • Radiation at Planetary Boundary of HD 190984 b : 122.01 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 190984)



  • Kopparapu Recent Venus for Star HD 190984 distance : 1.216 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star HD 190984 distance : 1.540 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HD 190984 distance : 1.487 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star HD 190984 distance : 1.630 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 190984 distance : 2.706 AU
  • Kopparapu Outer Boundary for Early Mars for Star HD 190984 distance : 2.854 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 190984)



  • Original Kopparapu Recent Venus for Star HD 190984 distance : 1.223 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 190984 distance : 1.582 AU
  • Original Kopparapu Moist Greenhouse for Star HD 190984 distance : 1.618 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 190984 distance : 2.754 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 190984 distance : 2.864 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 190984)



    (Position in Stellar Map of star HD 190984 and its Exoplanet HD 190984 b)



    (Zoomed position in Stellar Map of star HD 190984 and its Exoplanet HD 190984 b (zoom level 3))

    (Synthetic Spectrum of star HD 190984*)
    *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