Imaginary Picture of WASP-172 b

Display orbital revolution of WASP-172 b around the hoststar WASP-172
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Exoplanet Name : WASP-172 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 1.5700 (Rjup) 17.5981 (Rearth)
Mass (Mjup / Me): 0.4700 (Mjup) 149.4309 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0694 (AU) 0.0694 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0150
Orbital Period(Observed/Estimated) 5.48 (Days Obs.) 5.47 (Days Est.)
Surface Gravity (G Earth) 0.4825
Star Radiation at Atmospheric Boundary: 2105469.6 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1700.1 (K)
Blackbody T 0.3(K) 1596.6 (K)
Blackbody T 0.7(K) 1291.8 (K)
Tidally Locked Blackbody T 0.1(K) 2021.8 (K)
Tidally Locked Blackbody T 0.3(K) 1898.7 (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-172
Alternate Name :
Star Distance(LY) : 0.0
Stellar Radius(Rsun) : 1.9 (Rsun Measured)
Stellar Mass(Msun) : 1.5 (Msun Measured) 1.5 (Msun Estimated)
Star Age : 1.2 (GY)
Temperature : 6900 (K)
Spectral type : F1V
UV portion[%]: 7.8
Visible portion[%]: 44.8
IR portion[%]: 47.4
Metalicity : -0.1
Absolute Magnitude: 25.0
Apparent Magnitude: 11.0
Right Ascension(RA) 199.4333
Declination (DEC) -47.2375
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors
Discovery Paper - Title
Discovery Paper - Journal
Discovery Paper - URL
SIMBAD LINK https://simbad.u-strasbg.fr/simbad/sim-basic?Ident=WASP-172&submit=SIMBAD+search
Open Exoplanet Database Link
WASP-172 b
WASP-172 b

  • WASP-172 b is an exoplanet orbiting the star WASP-172. Its discovery was publicly announced on 2018.
  • The host star WASP-172 has apparent magnitude of 11.0, with absolute magnitude of 25.0.
  • It is 1.5 times more massive and 1.9 times bigger compared with our Sun. The surface temperature is 6900 with its spectral types of F1V
  • In this planetary system, the extrasolar planet WASP-172 b orbits around the star WASP-172 every 5.5 days with its orbital distance of 0.07 AU ( 10382092.2 km)
  • (Projected orbit of WASP-172 b around its host star WASP-172)


  • The Star WASP-172 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.970 AU ( 294706463.7 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 2.723 AU ( 407361348.8 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 4.149 AU ( 620728546.7 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 6.106 AU ( 913429248.9 km)
  • Radiation at Planetary Boundary of WASP-172 b : 2105469.56 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star WASP-172)



  • Kopparapu Recent Venus for Star WASP-172 distance : 1.913 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star WASP-172 distance : 2.423 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star WASP-172 distance : 2.339 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star WASP-172 distance : 2.562 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star WASP-172 distance : 4.194 AU
  • Kopparapu Outer Boundary for Early Mars for Star WASP-172 distance : 4.423 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star WASP-172)



  • Original Kopparapu Recent Venus for Star WASP-172 distance : 1.962 AU
  • Original Kopparapu Runaway Greenhouse for Star WASP-172 distance : 2.480 AU
  • Original Kopparapu Moist Greenhouse for Star WASP-172 distance : 2.596 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star WASP-172 distance : 4.270 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star WASP-172 distance : 4.441 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star WASP-172)



    (Position in Stellar Map of star WASP-172 and its Exoplanet WASP-172 b)



    (Zoomed position in Stellar Map of star WASP-172 and its Exoplanet WASP-172 b (zoom level 3))

    (Synthetic Spectrum of star WASP-172*)
    *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