Imaginary Picture of HD 220842 A b

Display orbital revolution of HD 220842 A b around the hoststar HD 220842 A
/
Exoplanet Name : HD 220842 A b
Alternate Name : HD 220842 b
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 3.1800 (Mjup) 1011.0428 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.7400 (AU) 0.7400 (AU Est.)
Eccentricity : 0.4040
Orbital Period(Yrs) 0.5981
Orbital Period(Observed/Estimated) 218.47 (Days Obs.) 218.73 (Days Est.)
Star Radiation at Atmospheric Boundary: 3254.9 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 337.1 (K)
Blackbody T 0.3(K) 316.6 (K)
Blackbody T 0.7(K) 256.2 (K)
Tidally Locked Blackbody T 0.1(K) 400.9 (K)
Tidally Locked Blackbody T 0.3(K) 376.5 (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 220842 A
Alternate Name : HD 220842
Star Distance(LY) : 212.2
Stellar Radius(Rsun) : 1.1 (Rsun Estimated)
Stellar Mass(Msun) : 1.1 (Msun Measured) 1.1 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 5920 (K)
Spectral type : F8
Metalicity : -0.2
Absolute Magnitude: 3.9
Apparent Magnitude: 8.0
Right Ascension(RA) 351.6541
Declination (DEC) 56.8867
Hubble Space Telescope Guide Star Catalog (GSC) ID 04007-01108
Discovered by
Discovery Paper - Authors 0
Discovery Paper - Title 0
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HD+220842+&submit=SIMBAD+search
Open Exoplanet Database Link 0
HD 220842 A b
HD 220842 A b

  • HD 220842 A b is an exoplanet orbiting the star HD 220842 A, located about 212.2 light-years (65.1 pc) away from Solar System. Its discovery was publicly announced on 2016.
  • The host star HD 220842 A has apparent magnitude of 8.0, with absolute magnitude of 3.9.
  • It is 1.1 times more massive and 1.1 times bigger compared with our Sun. The surface temperature is 5920 with its spectral types of F8
  • In this planetary system, the extrasolar planet HD 220842 A b orbits around the star HD 220842 A every 218.5 days with its orbital distance of 0.74 AU ( 110702424.3 km)
  • (Projected orbit of HD 220842 A b around its host star HD 220842 A)


  • The Star HD 220842 A 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.826 AU ( 123554504.6 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.142 AU ( 170784614.0 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.740 AU ( 260237957.2 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.560 AU ( 382951554.2 km)
  • Radiation at Planetary Boundary of HD 220842 A b : 3254.93 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 220842 A)



  • Kopparapu Recent Venus for Star HD 220842 A distance : 0.849 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star HD 220842 A distance : 1.075 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HD 220842 A distance : 1.038 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star HD 220842 A distance : 1.138 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 220842 A distance : 1.891 AU
  • Kopparapu Outer Boundary for Early Mars for Star HD 220842 A distance : 1.995 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 220842 A)



  • Original Kopparapu Recent Venus for Star HD 220842 A distance : 0.852 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 220842 A distance : 1.104 AU
  • Original Kopparapu Moist Greenhouse for Star HD 220842 A distance : 1.128 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 220842 A distance : 1.925 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 220842 A distance : 2.001 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 220842 A)



    (Position in Stellar Map of star HD 220842 A and its Exoplanet HD 220842 A b)



    (Zoomed position in Stellar Map of star HD 220842 A and its Exoplanet HD 220842 A b (zoom level 3))