Imaginary Picture of HD 162020 b

Display orbital revolution of HD 162020 b around the hoststar HD 162020
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Exoplanet Name : HD 162020 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 14.4000 (Mjup) 4578.3072 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0740 (AU) 0.0740 (AU Est.)
Eccentricity : 0.2770
Orbital Period(Yrs) 0.0231
Orbital Period(Observed/Estimated) 8.43 (Days Obs.) 8.49 (Days Est.)
Surface Gravity (G Earth) 44.2142
Star Radiation at Atmospheric Boundary: 61439.3 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 702.7 (K)
Blackbody T 0.3(K) 659.9 (K)
Blackbody T 0.7(K) 533.9 (K)
Tidally Locked Blackbody T 0.1(K) 835.6 (K)
Tidally Locked Blackbody T 0.3(K) 784.7 (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 162020
Alternate Name :
Star Distance(LY) : 100.3
Stellar Radius(Rsun) : 0.7 (Rsun Measured)
Stellar Mass(Msun) : 0.8 (Msun Measured) 0.8 (Msun Estimated)
Star Age : 0.8 (GY)
Temperature : 4830 (K)
Spectral type : K2 V
UV portion[%]: 2.5
Visible portion[%]: 35.6
IR portion[%]: 61.8
Metalicity : 0.0
Absolute Magnitude: 6.7
Apparent Magnitude: 9.2
Right Ascension(RA) 267.6598
Declination (DEC) -40.3183
Hubble Space Telescope Guide Star Catalog (GSC) ID 07890-01378
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+162020+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/HD%20162020%20b/
HD 162020 b
HD 162020 b

  • HD 162020 b is an exoplanet orbiting the star HD 162020, located about 100.3 light-years (30.8 pc) away from Solar System. Its discovery was publicly announced on 2002.
  • The host star HD 162020 has apparent magnitude of 9.2, with absolute magnitude of 6.7.
  • It is 0.8 times more massive and 0.7 times bigger compared with our Sun. The surface temperature is 4830 with its spectral types of K2 V
  • In this planetary system, the extrasolar planet HD 162020 b orbits around the star HD 162020 every 8.4 days with its orbital distance of 0.07 AU ( 11070242.4 km)
  • (Projected orbit of HD 162020 b around its host star HD 162020)


  • The Star HD 162020 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.359 AU ( 53679779.4 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.496 AU ( 74199483.4 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.756 AU ( 113063592.4 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.112 AU ( 166378029.2 km)
  • Radiation at Planetary Boundary of HD 162020 b : 61439.35 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 162020)



  • Kopparapu Recent Venus for Star HD 162020 distance : 0.391 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star HD 162020 distance : 0.495 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HD 162020 distance : 0.478 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star HD 162020 distance : 0.525 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 162020 distance : 0.904 AU
  • Kopparapu Outer Boundary for Early Mars for Star HD 162020 distance : 0.954 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 162020)



  • Original Kopparapu Recent Venus for Star HD 162020 distance : 0.387 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 162020 distance : 0.511 AU
  • Original Kopparapu Moist Greenhouse for Star HD 162020 distance : 0.511 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 162020 distance : 0.919 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 162020 distance : 0.956 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 162020)



    (Position in Stellar Map of star HD 162020 and its Exoplanet HD 162020 b)



    (Zoomed position in Stellar Map of star HD 162020 and its Exoplanet HD 162020 b (zoom level 3))

    (Synthetic Spectrum of star HD 162020*)
    *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