Imaginary Picture of HD 98649 b

Display orbital revolution of HD 98649 b around the hoststar HD 98649
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Exoplanet Name : HD 98649 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 6.7900 (Mjup) 2158.7990 (Mearth)
Semi Major Axis / Orbital Distance Calculated 6.5700 (AU) 6.5700 (AU Est.)
Eccentricity : 0.8600
Orbital Period(Yrs) 16.4896
Orbital Period(Observed/Estimated) 6023.00 (Days Obs.) 6060.66 (Days Est.)
Surface Gravity (G Earth) 20.8482
Star Radiation at Atmospheric Boundary: 32.6 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 106.6 (K)
Blackbody T 0.3(K) 100.1 (K)
Blackbody T 0.7(K) 81.0 (K)
Tidally Locked Blackbody T 0.1(K) 126.8 (K)
Tidally Locked Blackbody T 0.3(K) 119.1 (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 98649
Alternate Name :
Star Distance(LY) : 135.4
Stellar Radius(Rsun) : 1.0 (Rsun Measured)
Stellar Mass(Msun) : 1.0 (Msun Measured) 1.0 (Msun Estimated)
Star Age : 2.4 (GY)
Temperature : 5790 (K)
Spectral type : G4V
UV portion[%]: 0.3
Visible portion[%]: 1.5
IR portion[%]: 98.2
Metalicity : 0.1
Absolute Magnitude: 4.9
Apparent Magnitude: 8.0
Right Ascension(RA) 170.2157
Declination (DEC) -23.2172
Hubble Space Telescope Guide Star Catalog (GSC) ID 06650-00498
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+98649+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/HD%2098649%20b/
HD 98649 b
HD 98649 b

  • HD 98649 b is an exoplanet orbiting the star HD 98649, located about 135.4 light-years (41.5 pc) away from Solar System. Its discovery was publicly announced on 2011.
  • The host star HD 98649 has apparent magnitude of 8.0, with absolute magnitude of 4.9.
  • It is 1.0 times more massive and 1.0 times bigger compared with our Sun. The surface temperature is 5790 with its spectral types of G4V
  • In this planetary system, the extrasolar planet HD 98649 b orbits around the star HD 98649 every 6023.0 days with its orbital distance of 6.57 AU ( 982858010.5 km)
  • (Projected orbit of HD 98649 b around its host star HD 98649)


  • The Star HD 98649 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.734 AU ( 109732838.6 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.014 AU ( 151679459.5 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.545 AU ( 231125929.7 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.274 AU ( 340111930.6 km)
  • Radiation at Planetary Boundary of HD 98649 b : 32.57 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 98649)



  • Kopparapu Recent Venus for Star HD 98649 distance : 0.760 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star HD 98649 distance : 0.962 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HD 98649 distance : 0.929 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star HD 98649 distance : 1.019 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 98649 distance : 1.698 AU
  • Kopparapu Outer Boundary for Early Mars for Star HD 98649 distance : 1.791 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 98649)



  • Original Kopparapu Recent Venus for Star HD 98649 distance : 0.761 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 98649 distance : 0.989 AU
  • Original Kopparapu Moist Greenhouse for Star HD 98649 distance : 1.007 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 98649 distance : 1.728 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 98649 distance : 1.797 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 98649)



    (Position in Stellar Map of star HD 98649 and its Exoplanet HD 98649 b)



    (Zoomed position in Stellar Map of star HD 98649 and its Exoplanet HD 98649 b (zoom level 3))

    (Synthetic Spectrum of star HD 98649*)
    *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