Imaginary Picture of HD 122562 b

Display orbital revolution of HD 122562 b around the hoststar HD 122562
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Exoplanet Name : HD 122562 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 37.2030 (Mjup) 11828.2474 (Mearth)
Semi Major Axis / Orbital Distance Calculated 4.3130 (AU) 4.3130 (AU Est.)
Eccentricity : 0.7060
Orbital Period(Yrs) 7.9601
Orbital Period(Observed/Estimated) 2907.50 (Days Obs.) 3077.66 (Days Est.)
Surface Gravity (G Earth) 114.2293
Star Radiation at Atmospheric Boundary: 186.6 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 165.0 (K)
Blackbody T 0.3(K) 154.9 (K)
Blackbody T 0.7(K) 125.3 (K)
Tidally Locked Blackbody T 0.1(K) 196.2 (K)
Tidally Locked Blackbody T 0.3(K) 184.2 (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 122562
Alternate Name :
Star Distance(LY) : 172.9
Stellar Radius(Rsun) : 2.2 (Rsun Measured)
Stellar Mass(Msun) : 1.1 (Msun Measured) 1.3 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 4956 (K)
Spectral type : K0IV
UV portion[%]: 3.0
Visible portion[%]: 36.6
IR portion[%]: 60.3
Metalicity : 0.3
Absolute Magnitude: 4.1
Apparent Magnitude: 7.7
Right Ascension(RA) 210.5882
Declination (DEC) 20.8814
Hubble Space Telescope Guide Star Catalog (GSC) ID 01473-00669
Discovered by
Discovery Paper - Authors
Discovery Paper - Title
Discovery Paper - Journal
Discovery Paper - URL
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HD+122562+&submit=SIMBAD+search
Open Exoplanet Database Link
HD 122562 b
HD 122562 b

  • HD 122562 b is an exoplanet orbiting the star HD 122562, located about 172.9 light-years (53.0 pc) away from Solar System. Its discovery was publicly announced on 2016.
  • The host star HD 122562 has apparent magnitude of 7.7, with absolute magnitude of 4.1.
  • It is 1.1 times more massive and 2.2 times bigger compared with our Sun. The surface temperature is 4956 with its spectral types of K0IV
  • In this planetary system, the extrasolar planet HD 122562 b orbits around the star HD 122562 every 2907.5 days with its orbital distance of 4.31 AU ( 645215616.3 km)
  • (Projected orbit of HD 122562 b around its host star HD 122562)


  • The Star HD 122562 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.153 AU ( 172416633.1 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.593 AU ( 238324844.8 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.428 AU ( 363154322.4 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 3.572 AU ( 534397494.1 km)
  • Radiation at Planetary Boundary of HD 122562 b : 186.59 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 122562)



  • Kopparapu Recent Venus for Star HD 122562 distance : 1.249 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star HD 122562 distance : 1.582 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HD 122562 distance : 1.528 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star HD 122562 distance : 1.677 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 122562 distance : 2.872 AU
  • Kopparapu Outer Boundary for Early Mars for Star HD 122562 distance : 3.030 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 122562)



  • Original Kopparapu Recent Venus for Star HD 122562 distance : 1.236 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 122562 distance : 1.630 AU
  • Original Kopparapu Moist Greenhouse for Star HD 122562 distance : 1.635 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 122562 distance : 2.920 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 122562 distance : 3.037 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 122562)



    (Position in Stellar Map of star HD 122562 and its Exoplanet HD 122562 b)



    (Zoomed position in Stellar Map of star HD 122562 and its Exoplanet HD 122562 b (zoom level 3))

    (Synthetic Spectrum of star HD 122562*)
    *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