Imaginary Picture of HD 210193 b

Display orbital revolution of HD 210193 b around the hoststar HD 210193
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Exoplanet Name : HD 210193 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 0.4817 (Mjup) 153.1507 (Mearth)
Semi Major Axis / Orbital Distance Calculated 1.4870 (AU) 1.4870 (AU Est.)
Eccentricity : 0.2400
Orbital Period(Yrs) 1.7793
Orbital Period(Observed/Estimated) 649.92 (Days Obs.) 649.44 (Days Est.)
Surface Gravity (G Earth) 1.4790
Star Radiation at Atmospheric Boundary: 657.4 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 226.0 (K)
Blackbody T 0.3(K) 212.2 (K)
Blackbody T 0.7(K) 171.7 (K)
Tidally Locked Blackbody T 0.1(K) 268.8 (K)
Tidally Locked Blackbody T 0.3(K) 252.4 (K)
Size Class: Jupiter-size
Mass Class:
Detection Type : Radial Velocity
Mass Detection : Radial Velocity
Radius Detection :
Habitability by Solar Eq. Astronomical Unit: Habitable
Habitability by Kopparapu: Not habitable
Star Name : HD 210193
Alternate Name :
Star Distance(LY) : 137.8
Stellar Radius(Rsun) : 1.0 (Rsun Estimated)
Stellar Mass(Msun) : 1.0 (Msun Measured) 1.0 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 5790 (K)
Spectral type : G3V
UV portion[%]: 7.8
Visible portion[%]: 44.8
IR portion[%]: 47.4
Metalicity : 0.0
Absolute Magnitude: 18.9
Apparent Magnitude: 22.0
Right Ascension(RA) 332.4000
Declination (DEC) -41.2300
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 210193 b
HD 210193 b

  • HD 210193 b is an exoplanet orbiting the star HD 210193, located about 137.8 light-years (42.2 pc) away from Solar System. Its discovery was publicly announced on 2019.
  • The host star HD 210193 has apparent magnitude of 22.0, with absolute magnitude of 18.9.
  • 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 G3V
  • In this planetary system, the extrasolar planet HD 210193 b orbits around the star HD 210193 every 649.9 days with its orbital distance of 1.49 AU ( 222452033.7 km)
  • (Projected orbit of HD 210193 b around its host star HD 210193)


  • The Star HD 210193 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.746 AU ( 111582168.6 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.031 AU ( 154235716.9 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.571 AU ( 235021100.2 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.312 AU ( 345843844.6 km)
  • Radiation at Planetary Boundary of HD 210193 b : 657.44 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 210193)



  • Kopparapu Recent Venus for Star HD 210193 distance : 0.773 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star HD 210193 distance : 0.978 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HD 210193 distance : 0.945 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star HD 210193 distance : 1.036 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 210193 distance : 1.727 AU
  • Kopparapu Outer Boundary for Early Mars for Star HD 210193 distance : 1.822 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 210193)



  • Original Kopparapu Recent Venus for Star HD 210193 distance : 0.774 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 210193 distance : 1.005 AU
  • Original Kopparapu Moist Greenhouse for Star HD 210193 distance : 1.024 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 210193 distance : 1.757 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 210193 distance : 1.828 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 210193)



    (Position in Stellar Map of star HD 210193 and its Exoplanet HD 210193 b)



    (Zoomed position in Stellar Map of star HD 210193 and its Exoplanet HD 210193 b (zoom level 3))

    (Synthetic Spectrum of star HD 210193*)
    *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