Imaginary Picture of WASP-156 b
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Exoplanet Name : WASP-156 b
Alternate Name :
Radius (Rjup / Re): 0.5100 (Rjup) 5.7166 (Rearth)
Mass (Mjup / Me): 0.1280 (Mjup) 40.6961 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0453 (AU) 0.0453 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0105
Orbital Period(Observed/Estimated) 3.84 (Days Obs.) 3.84 (Days Est.)
Star Radiation at Atmospheric Boundary: 200614.1 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 944.6 (K)
Blackbody T 0.3(K) 887.0 (K)
Blackbody T 0.7(K) 717.7 (K)
Tidally Locked Blackbody T 0.1(K) 1123.3 (K)
Tidally Locked Blackbody T 0.3(K) 1054.9 (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-156
Alternate Name :
Star Distance(LY) : 456.6
Stellar Radius(Rsun) : 0.8 (Rsun Measured)
Stellar Mass(Msun) : 0.8 (Msun Measured) 0.8 (Msun Estimated)
Star Age : 6.4 (GY)
Temperature : 4910 (K)
Spectral type : K3
Metalicity : 0.2
Absolute Magnitude: 5.9
Apparent Magnitude: 11.6
Right Ascension(RA) 32.7817
Declination (DEC) 2.4180
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors "Olivier. D. S. Demangeon, F. Faedi, G. H_brard, D. J. A. Brown, S. C. C. Barros, A. P. Doyle, P. F. L. Maxted, A. Collier Cameron, K. L. Hay, J. Alikakos, D. R. Anderson, D. J. Armstrong, P. Boumis, A. S. Bonomo, F. Bouchy, C. A. Haswell, C. Hellier, F. Kiefer, K. W. F. Lam, L. Mancini, J. McCormac, A. J. Norton, H. P. Osborn, E. Palle, F. Pepe, D. L. Pollacco, J. Prieto-Arranz, D. Queloz, D. S_gransan, B. Smalley, A. H. M. J. Triaud, S. Udry, R. West, P.J. Wheatley"
Discovery Paper - Title "The discovery of WASP-151b, WASP-153b, WASP-156b: Insights on giant planet migration and the upper boundary of the Neptunian desert"
Discovery Paper - Journal
Discovery Paper - URL https://arxiv.org/abs/1710.06321
SIMBAD LINK
Open Exoplanet Database Link
WASP-156 b
WASP-156 b

  • WASP-156 b is an exoplanet orbiting the star WASP-156, located about 456.6 light-years (140.0 pc) away from Solar System. Its discovery was publicly announced on 2017.
  • The host star WASP-156 has apparent magnitude of 11.6, with absolute magnitude of 5.9.
  • It is 0.8 times more massive and 0.8 times bigger compared with our Sun. The surface temperature is 4910 with its spectral types of K3
  • In this planetary system, the extrasolar planet WASP-156 b orbits around the star WASP-156 every 3.8 days with its orbital distance of 0.05 AU ( 6776783.5 km)
  • (Projected orbit of WASP-156 b around its host star WASP-156)


  • The Star WASP-156 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.397 AU ( 59379247.4 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.549 AU ( 82077637.6 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.836 AU ( 125068155.9 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.230 AU ( 184043270.3 km)
  • Radiation at Planetary Boundary of WASP-156 b : 200614.15 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star WASP-156)



  • Kopparapu Recent Venus for Star WASP-156 distance : 0.431 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star WASP-156 distance : 0.546 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star WASP-156 distance : 0.527 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star WASP-156 distance : 0.579 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star WASP-156 distance : 0.993 AU
  • Kopparapu Outer Boundary for Early Mars for Star WASP-156 distance : 1.048 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star WASP-156)



  • Original Kopparapu Recent Venus for Star WASP-156 distance : 0.426 AU
  • Original Kopparapu Runaway Greenhouse for Star WASP-156 distance : 0.563 AU
  • Original Kopparapu Moist Greenhouse for Star WASP-156 distance : 0.564 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star WASP-156 distance : 1.010 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star WASP-156 distance : 1.050 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star WASP-156)



    (Position in Stellar Map of star WASP-156 and its Exoplanet WASP-156 b)



    (Zoomed position in Stellar Map of star WASP-156 and its Exoplanet WASP-156 b (zoom level 3))