Imaginary Picture of WASP-166 b
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Exoplanet Name : WASP-166 b
Alternate Name :
Radius (Rjup / Re): 0.6300 (Rjup) 7.0617 (Rearth)
Mass (Mjup / Me): 0.1020 (Mjup) 32.4297 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0642 (AU) 0.0642 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0149
Orbital Period(Observed/Estimated) 5.44 (Days Obs.) 5.45 (Days Est.)
Star Radiation at Atmospheric Boundary: 593302.1 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1238.7 (K)
Blackbody T 0.3(K) 1163.3 (K)
Blackbody T 0.7(K) 941.2 (K)
Tidally Locked Blackbody T 0.1(K) 1473.1 (K)
Tidally Locked Blackbody T 0.3(K) 1383.4 (K)
Size Class: sub-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-166
Alternate Name :
Star Distance(LY) : 373.6
Stellar Radius(Rsun) : 1.2 (Rsun Measured)
Stellar Mass(Msun) : 1.2 (Msun Measured) 1.2 (Msun Estimated)
Star Age : 2.1 (GY)
Temperature : 6050 (K)
Spectral type : F9
Metalicity : 0.2
Absolute Magnitude: 4.1
Apparent Magnitude: 9.4
Right Ascension(RA) 144.8754
Declination (DEC) -20.9825
Hubble Space Telescope Guide Star Catalog (GSC) ID 06055-00537
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=WASP-166+&submit=SIMBAD+search
Open Exoplanet Database Link
WASP-166 b
WASP-166 b

  • WASP-166 b is an exoplanet orbiting the star WASP-166, located about 373.6 light-years (114.5 pc) away from Solar System. Its discovery was publicly announced on 2018.
  • The host star WASP-166 has apparent magnitude of 9.4, with absolute magnitude of 4.1.
  • It is 1.2 times more massive and 1.2 times bigger compared with our Sun. The surface temperature is 6050 with its spectral types of F9
  • In this planetary system, the extrasolar planet WASP-166 b orbits around the star WASP-166 every 5.4 days with its orbital distance of 0.06 AU ( 9604183.3 km)
  • (Projected orbit of WASP-166 b around its host star WASP-166)


  • The Star WASP-166 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.967 AU ( 144720046.2 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.337 AU ( 200040923.7 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.038 AU ( 304818098.7 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.998 AU ( 448553185.5 km)
  • Radiation at Planetary Boundary of WASP-166 b : 593302.14 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star WASP-166)



  • Kopparapu Recent Venus for Star WASP-166 distance : 0.986 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star WASP-166 distance : 1.249 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star WASP-166 distance : 1.206 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star WASP-166 distance : 1.322 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star WASP-166 distance : 2.191 AU
  • Kopparapu Outer Boundary for Early Mars for Star WASP-166 distance : 2.311 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star WASP-166)



  • Original Kopparapu Recent Venus for Star WASP-166 distance : 0.993 AU
  • Original Kopparapu Runaway Greenhouse for Star WASP-166 distance : 1.282 AU
  • Original Kopparapu Moist Greenhouse for Star WASP-166 distance : 1.314 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star WASP-166 distance : 2.230 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star WASP-166 distance : 2.319 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star WASP-166)



    (Position in Stellar Map of star WASP-166 and its Exoplanet WASP-166 b)



    (Zoomed position in Stellar Map of star WASP-166 and its Exoplanet WASP-166 b (zoom level 3))