Imaginary Picture of WASP-122 b

Display orbital revolution of WASP-122 b around the hoststar WASP-122
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Exoplanet Name : WASP-122 b
Alternate Name : KELT-14 b
Status : Confirmed
Radius (Rjup / Re): 1.7920 (Rjup) 20.0865 (Rearth)
Mass (Mjup / Me): 1.4010 (Mjup) 445.4311 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0311 (AU) 0.0311 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0047
Orbital Period(Observed/Estimated) 1.71 (Days Obs.) 1.69 (Days Est.)
Surface Gravity (G Earth) 1.1040
Star Radiation at Atmospheric Boundary: 3362627.7 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1911.2 (K)
Blackbody T 0.3(K) 1794.8 (K)
Blackbody T 0.7(K) 1452.2 (K)
Tidally Locked Blackbody T 0.1(K) 2272.8 (K)
Tidally Locked Blackbody T 0.3(K) 2134.4 (K)
Size Class: Super-Jupiter-size
Mass Class:
Detection Type : Primary Transit
Mass Detection :
Radius Detection : Primary Transit
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : WASP-122
Alternate Name :
Star Distance(LY) : 797.4
Stellar Radius(Rsun) : 1.6 (Rsun Measured)
Stellar Mass(Msun) : 1.4 (Msun Measured) 1.4 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 5730 (K)
Spectral type : G4
UV portion[%]: 7.7
Visible portion[%]: 44.5
IR portion[%]: 47.7
Metalicity : 0.3
Absolute Magnitude: 4.1
Apparent Magnitude: 11.0
Right Ascension(RA) 108.3015
Declination (DEC) -42.4097
Hubble Space Telescope Guide Star Catalog (GSC) ID 07638-00981
Discovered by
Discovery Paper - Authors "O.D.Turner, D. R. Anderson, A. Collier Cameron, L. Delrez, M. Gillon, C. Hellier, E. Jehin, M. Lendl, P. F. L. Maxted, F. Pepe, D. Pollacco, D. Queloz, D. S_gransan, B. Smalley, A. M. S. Smith, A. H. M.J. Triaud, S. Udry, R. G. West"
Discovery Paper - Title "WASP-120b, WASP-122b and WASP-123b: Three newly discovered planets from the WASP-South survey"
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=WASP-122+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/WASP-122%20b/
WASP-122 b
WASP-122 b

  • WASP-122 b is an exoplanet orbiting the star WASP-122, located about 797.4 light-years (244.5 pc) away from Solar System. Its discovery was publicly announced on 2015.
  • The host star WASP-122 has apparent magnitude of 11.0, with absolute magnitude of 4.1.
  • It is 1.4 times more massive and 1.6 times bigger compared with our Sun. The surface temperature is 5730 with its spectral types of G4
  • In this planetary system, the extrasolar planet WASP-122 b orbits around the star WASP-122 every 1.7 days with its orbital distance of 0.03 AU ( 4648005.8 km)
  • (Projected orbit of WASP-122 b around its host star WASP-122)


  • The Star WASP-122 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.115 AU ( 166738677.6 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.541 AU ( 230476426.5 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.348 AU ( 351195069.7 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 3.455 AU ( 516798929.9 km)
  • Radiation at Planetary Boundary of WASP-122 b : 3362627.69 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star WASP-122)



  • Kopparapu Recent Venus for Star WASP-122 distance : 1.159 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star WASP-122 distance : 1.467 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star WASP-122 distance : 1.417 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star WASP-122 distance : 1.554 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star WASP-122 distance : 2.594 AU
  • Kopparapu Outer Boundary for Early Mars for Star WASP-122 distance : 2.736 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star WASP-122)



  • Original Kopparapu Recent Venus for Star WASP-122 distance : 1.159 AU
  • Original Kopparapu Runaway Greenhouse for Star WASP-122 distance : 1.508 AU
  • Original Kopparapu Moist Greenhouse for Star WASP-122 distance : 1.533 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star WASP-122 distance : 2.640 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star WASP-122 distance : 2.745 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star WASP-122)



    (Position in Stellar Map of star WASP-122 and its Exoplanet WASP-122 b)



    (Zoomed position in Stellar Map of star WASP-122 and its Exoplanet WASP-122 b (zoom level 3))

    (Synthetic Spectrum of star WASP-122*)
    *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