Imaginary Picture of WASP-137 b

Display orbital revolution of WASP-137 b around the hoststar WASP-137
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Exoplanet Name : WASP-137 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 1.2700 (Rjup) 14.2354 (Rearth)
Mass (Mjup / Me): 0.6810 (Mjup) 216.5158 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0519 (AU) 0.0519 (AU Est.)
Eccentricity : 0.1400
Orbital Period(Yrs) 0.0107
Orbital Period(Observed/Estimated) 3.91 (Days Obs.) 3.92 (Days Est.)
Surface Gravity (G Earth) 1.0684
Star Radiation at Atmospheric Boundary: 1716158.2 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1615.4 (K)
Blackbody T 0.3(K) 1517.0 (K)
Blackbody T 0.7(K) 1227.4 (K)
Tidally Locked Blackbody T 0.1(K) 1921.1 (K)
Tidally Locked Blackbody T 0.3(K) 1804.1 (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-137
Alternate Name :
Star Distance(LY) : 942.6
Stellar Radius(Rsun) : 1.6 (Rsun Measured)
Stellar Mass(Msun) : 1.2 (Msun Measured) 1.2 (Msun Estimated)
Star Age : 4.3 (GY)
Temperature : 6100 (K)
Spectral type : G0
UV portion[%]: 7.8
Visible portion[%]: 44.8
IR portion[%]: 47.4
Metalicity : 0.5
Absolute Magnitude: 3.7
Apparent Magnitude: 11.0
Right Ascension(RA) 25.8708
Declination (DEC) -14.1492
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors
Discovery Paper - Title
Discovery Paper - Journal
Discovery Paper - URL
SIMBAD LINK
Open Exoplanet Database Link
WASP-137 b
WASP-137 b

  • WASP-137 b is an exoplanet orbiting the star WASP-137, located about 942.6 light-years (289.0 pc) away from Solar System. Its discovery was publicly announced on 2018.
  • The host star WASP-137 has apparent magnitude of 11.0, with absolute magnitude of 3.7.
  • It is 1.2 times more massive and 1.6 times bigger compared with our Sun. The surface temperature is 6100 with its spectral types of G0
  • In this planetary system, the extrasolar planet WASP-137 b orbits around the star WASP-137 every 3.9 days with its orbital distance of 0.05 AU ( 7764129.5 km)
  • (Projected orbit of WASP-137 b around its host star WASP-137)


  • The Star WASP-137 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.330 AU ( 198976472.2 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.839 AU ( 275037483.4 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.801 AU ( 419096259.0 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 4.123 AU ( 616718504.5 km)
  • Radiation at Planetary Boundary of WASP-137 b : 1716158.21 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star WASP-137)



  • Kopparapu Recent Venus for Star WASP-137 distance : 1.352 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star WASP-137 distance : 1.712 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star WASP-137 distance : 1.653 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star WASP-137 distance : 1.812 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star WASP-137 distance : 3.000 AU
  • Kopparapu Outer Boundary for Early Mars for Star WASP-137 distance : 3.164 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star WASP-137)



  • Original Kopparapu Recent Venus for Star WASP-137 distance : 1.363 AU
  • Original Kopparapu Runaway Greenhouse for Star WASP-137 distance : 1.757 AU
  • Original Kopparapu Moist Greenhouse for Star WASP-137 distance : 1.803 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star WASP-137 distance : 3.054 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star WASP-137 distance : 3.175 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star WASP-137)



    (Position in Stellar Map of star WASP-137 and its Exoplanet WASP-137 b)



    (Zoomed position in Stellar Map of star WASP-137 and its Exoplanet WASP-137 b (zoom level 3))

    (Synthetic Spectrum of star WASP-137*)
    *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