Imaginary Picture of HD 80833 b

Display orbital revolution of HD 80833 b around the hoststar HD 80833
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Exoplanet Name : HD 80833 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 5.5000 (Mjup) 1748.6590 (Mearth)
Semi Major Axis / Orbital Distance Calculated 6.4620 (AU) 6.4620 (AU Est.)
Eccentricity : 0.2030
Orbital Period(Yrs) 0.0000
Orbital Period(Observed/Estimated) 0.00 (Days Obs.) 6395.87 (Days Est.)
Surface Gravity (G Earth) 16.8874
Star Radiation at Atmospheric Boundary: 14.0 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 86.3 (K)
Blackbody T 0.3(K) 81.1 (K)
Blackbody T 0.7(K) 65.6 (K)
Tidally Locked Blackbody T 0.1(K) 102.7 (K)
Tidally Locked Blackbody T 0.3(K) 96.4 (K)
Size Class: Jupiter-size
Mass Class:
Detection Type : "Radial Velocity, Astrometry"
Mass Detection : Astrometry
Radius Detection :
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : HD 80833
Alternate Name :
Star Distance(LY) : 112.9
Stellar Radius(Rsun) : 0.8 (Rsun Measured)
Stellar Mass(Msun) : 0.9 (Msun Measured) 0.0 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 5177 (K)
Spectral type : K0V
UV portion[%]: 4.8
Visible portion[%]: 39.8
IR portion[%]: 55.4
Metalicity : -0.3
Absolute Magnitude: 5.9
Apparent Magnitude: 8.6
Right Ascension(RA) 139.9339
Declination (DEC) -59.4777
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors
Discovery Paper - Title
Discovery Paper - Journal
Discovery Paper - URL
SIMBAD LINK
Open Exoplanet Database Link
HD 80833 b
HD 80833 b

  • HD 80833 b is an exoplanet orbiting the star HD 80833, located about 112.9 light-years (34.6 pc) away from Solar System. Its discovery was publicly announced on 2022.
  • The host star HD 80833 has apparent magnitude of 8.6, with absolute magnitude of 5.9.
  • It is 0.9 times more massive and 0.8 times bigger compared with our Sun. The surface temperature is 5177 with its spectral types of K0V
  • (Projected orbit of HD 80833 b around its host star HD 80833)


  • The Star HD 80833 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.473 AU ( 70772650.8 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.654 AU ( 97826298.6 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.996 AU ( 149065630.1 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.466 AU ( 219356604.9 km)
  • Radiation at Planetary Boundary of HD 80833 b : 14.01 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 80833)



  • Kopparapu Recent Venus for Star HD 80833 distance : 0.507 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star HD 80833 distance : 0.642 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HD 80833 distance : 0.620 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star HD 80833 distance : 0.681 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 80833 distance : 1.156 AU
  • Kopparapu Outer Boundary for Early Mars for Star HD 80833 distance : 1.220 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 80833)



  • Original Kopparapu Recent Venus for Star HD 80833 distance : 0.503 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 80833 distance : 0.661 AU
  • Original Kopparapu Moist Greenhouse for Star HD 80833 distance : 0.665 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 80833 distance : 1.176 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 80833 distance : 1.223 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 80833)



    (Position in Stellar Map of star HD 80833 and its Exoplanet HD 80833 b)



    (Zoomed position in Stellar Map of star HD 80833 and its Exoplanet HD 80833 b (zoom level 3))

    (Synthetic Spectrum of star HD 80833*)
    *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