Imaginary Picture of WASP-157 b

Display orbital revolution of WASP-157 b around the hoststar WASP-157
/
Exoplanet Name : WASP-157 b
Alternate Name : "1SWASP J132637.24-081903.2 b, 2MASS J13263727-0819033 b, EPIC 212697709 b, EPIC 212697709.01, K2-41 b, TYC 5544-00596-1
Status : Confirmed
Radius (Rjup / Re): 0.9980 (Rjup) 11.1866 (Rearth)
Mass (Mjup / Me): 0.5760 (Mjup) 183.1323 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0499 (AU) 0.0499 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0108
Orbital Period(Observed/Estimated) 3.95 (Days Obs.) 3.95 (Days Est.)
Surface Gravity (G Earth) 1.4634
Star Radiation at Atmospheric Boundary: 661446.0 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1272.8 (K)
Blackbody T 0.3(K) 1195.3 (K)
Blackbody T 0.7(K) 967.1 (K)
Tidally Locked Blackbody T 0.1(K) 1513.6 (K)
Tidally Locked Blackbody T 0.3(K) 1421.5 (K)
Size Class: 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-157
Alternate Name : "1SWASP J132637.24-081903.2, 2MASS J13263727-0819033, EPIC 212697709, K2-41, TYC 5544-596-1, WISE J132637.24-081903.4"
Star Distance(LY) : 867.4
Stellar Radius(Rsun) : 1.1 (Rsun Measured)
Stellar Mass(Msun) : 1.1 (Msun Measured) 1.1 (Msun Estimated)
Star Age : 1.0 (GY)
Temperature : 5772 (K)
Spectral type : G2 V
UV portion[%]: 7.8
Visible portion[%]: 44.7
IR portion[%]: 47.4
Metalicity : 0.2
Absolute Magnitude: 5.8
Apparent Magnitude: 12.9
Right Ascension(RA) 201.6552
Declination (DEC) -8.3176
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors 0
Discovery Paper - Title 0
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK
Open Exoplanet Database Link 0
WASP-157 b
WASP-157 b

  • WASP-157 b is an exoplanet orbiting the star WASP-157, located about 867.4 light-years (266.0 pc) away from Solar System. Its discovery was publicly announced on 2016.
  • The host star WASP-157 has apparent magnitude of 12.9, with absolute magnitude of 5.8.
  • It is 1.1 times more massive and 1.1 times bigger compared with our Sun. The surface temperature is 5772 with its spectral types of G2 V
  • In this planetary system, the extrasolar planet WASP-157 b orbits around the star WASP-157 every 4.0 days with its orbital distance of 0.05 AU ( 7464933.7 km)
  • (Projected orbit of WASP-157 b around its host star WASP-157)


  • The Star WASP-157 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.794 AU ( 118769093.7 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.097 AU ( 164169925.6 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.672 AU ( 250158635.8 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.461 AU ( 368119391.4 km)
  • Radiation at Planetary Boundary of WASP-157 b : 661445.98 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star WASP-157)



  • Kopparapu Recent Venus for Star WASP-157 distance : 0.823 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star WASP-157 distance : 1.042 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star WASP-157 distance : 1.007 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star WASP-157 distance : 1.104 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star WASP-157 distance : 1.841 AU
  • Kopparapu Outer Boundary for Early Mars for Star WASP-157 distance : 1.942 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star WASP-157)



  • Original Kopparapu Recent Venus for Star WASP-157 distance : 0.824 AU
  • Original Kopparapu Runaway Greenhouse for Star WASP-157 distance : 1.071 AU
  • Original Kopparapu Moist Greenhouse for Star WASP-157 distance : 1.090 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star WASP-157 distance : 1.873 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star WASP-157 distance : 1.948 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star WASP-157)



    (Position in Stellar Map of star WASP-157 and its Exoplanet WASP-157 b)



    (Zoomed position in Stellar Map of star WASP-157 and its Exoplanet WASP-157 b (zoom level 3))

    (Synthetic Spectrum of star WASP-157*)
    *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