Imaginary Picture of WASP-118 b

Display orbital revolution of WASP-118 b around the hoststar WASP-118
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Exoplanet Name : WASP-118 b
Alternate Name : "1SWASP J011812.12+024210.2 b, 2MASS J01181213+0242102 b, EPIC 220303276.01, TYC 23-187-1 b, WISE J011812.13+024210.1 b"
Status : Confirmed
Radius (Rjup / Re): 1.4400 (Rjup) 16.1410 (Rearth)
Mass (Mjup / Me): 0.5140 (Mjup) 163.4201 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0545 (AU) 0.0545 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0111
Orbital Period(Observed/Estimated) 4.05 (Days Obs.) 4.05 (Days Est.)
Surface Gravity (G Earth) 0.6273
Star Radiation at Atmospheric Boundary: 2012165.9 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1681.0 (K)
Blackbody T 0.3(K) 1578.6 (K)
Blackbody T 0.7(K) 1277.3 (K)
Tidally Locked Blackbody T 0.1(K) 1999.0 (K)
Tidally Locked Blackbody T 0.3(K) 1877.3 (K)
Size Class: Super-Jupiter-size
Mass Class:
Detection Type : Primary Transit
Mass Detection : Radial Velocity
Radius Detection : Primary Transit
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : WASP-118
Alternate Name : "1SWASP J011812.12+024210.2, 2MASS J01181213+0242102, EPIC 220303276, TYC 23-187-1, WISE J011812.13+024210.1"
Star Distance(LY) : 1241.1
Stellar Radius(Rsun) : 1.7 (Rsun Measured)
Stellar Mass(Msun) : 1.3 (Msun Measured) 1.3 (Msun Estimated)
Star Age : 1.2 (GY)
Temperature : 6410 (K)
Spectral type : F6
UV portion[%]: 7.8
Visible portion[%]: 44.8
IR portion[%]: 47.4
Metalicity : 0.2
Absolute Magnitude: 3.1
Apparent Magnitude: 11.0
Right Ascension(RA) 19.5505
Declination (DEC) 2.7028
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors
Discovery Paper - Title
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=WASP-118&submit=SIMBAD+search
Open Exoplanet Database Link
WASP-118 b
WASP-118 b

  • WASP-118 b is an exoplanet orbiting the star WASP-118, located about 1241.1 light-years (380.5 pc) away from Solar System. Its discovery was publicly announced on 2016.
  • The host star WASP-118 has apparent magnitude of 11.0, with absolute magnitude of 3.1.
  • It is 1.3 times more massive and 1.7 times bigger compared with our Sun. The surface temperature is 6410 with its spectral types of F6
  • In this planetary system, the extrasolar planet WASP-118 b orbits around the star WASP-118 every 4.0 days with its orbital distance of 0.05 AU ( 8157571.9 km)
  • (Projected orbit of WASP-118 b around its host star WASP-118)


  • The Star WASP-118 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.513 AU ( 226372200.7 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 2.092 AU ( 312905539.5 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 3.187 AU ( 476798796.3 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 4.690 AU ( 701630316.0 km)
  • Radiation at Planetary Boundary of WASP-118 b : 2012165.86 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star WASP-118)



  • Kopparapu Recent Venus for Star WASP-118 distance : 1.510 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star WASP-118 distance : 1.912 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star WASP-118 distance : 1.846 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star WASP-118 distance : 2.023 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star WASP-118 distance : 3.330 AU
  • Kopparapu Outer Boundary for Early Mars for Star WASP-118 distance : 3.513 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star WASP-118)



  • Original Kopparapu Recent Venus for Star WASP-118 distance : 1.532 AU
  • Original Kopparapu Runaway Greenhouse for Star WASP-118 distance : 1.960 AU
  • Original Kopparapu Moist Greenhouse for Star WASP-118 distance : 2.027 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star WASP-118 distance : 3.391 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star WASP-118 distance : 3.526 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star WASP-118)



    (Position in Stellar Map of star WASP-118 and its Exoplanet WASP-118 b)



    (Zoomed position in Stellar Map of star WASP-118 and its Exoplanet WASP-118 b (zoom level 3))

    (Synthetic Spectrum of star WASP-118*)
    *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