Imaginary Picture of WASP-143 b

Display orbital revolution of WASP-143 b around the hoststar WASP-143
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Exoplanet Name : WASP-143 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 1.2340 (Rjup) 13.8319 (Rearth)
Mass (Mjup / Me): 0.7250 (Mjup) 230.5050 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0490 (AU) 0.0490 (AU Est.)
Eccentricity : 0.0007
Orbital Period(Yrs) 0.0103
Orbital Period(Observed/Estimated) 3.78 (Days Obs.) 3.80 (Days Est.)
Surface Gravity (G Earth) 1.2048
Star Radiation at Atmospheric Boundary: 618900.3 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1251.8 (K)
Blackbody T 0.3(K) 1175.6 (K)
Blackbody T 0.7(K) 951.2 (K)
Tidally Locked Blackbody T 0.1(K) 1488.7 (K)
Tidally Locked Blackbody T 0.3(K) 1398.0 (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-143
Alternate Name :
Star Distance(LY) : 1311.1
Stellar Radius(Rsun) : 1.0 (Rsun Measured)
Stellar Mass(Msun) : 1.1 (Msun Measured) 1.1 (Msun Estimated)
Star Age : 1.9 (GY)
Temperature : 5900 (K)
Spectral type : G1
UV portion[%]: 7.8
Visible portion[%]: 44.8
IR portion[%]: 47.4
Metalicity : 0.2
Absolute Magnitude: 4.6
Apparent Magnitude: 12.6
Right Ascension(RA) 140.8458
Declination (DEC) 2.9325
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-143 b
WASP-143 b

  • WASP-143 b is an exoplanet orbiting the star WASP-143, located about 1311.1 light-years (402.0 pc) away from Solar System. Its discovery was publicly announced on 2018.
  • The host star WASP-143 has apparent magnitude of 12.6, with absolute magnitude of 4.6.
  • It is 1.1 times more massive and 1.0 times bigger compared with our Sun. The surface temperature is 5900 with its spectral types of G1
  • In this planetary system, the extrasolar planet WASP-143 b orbits around the star WASP-143 every 3.8 days with its orbital distance of 0.05 AU ( 7330295.7 km)
  • (Projected orbit of WASP-143 b around its host star WASP-143)


  • The Star WASP-143 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.754 AU ( 112813776.0 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.042 AU ( 155938120.2 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.588 AU ( 237615186.1 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.337 AU ( 349661155.6 km)
  • Radiation at Planetary Boundary of WASP-143 b : 618900.31 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star WASP-143)



  • Kopparapu Recent Venus for Star WASP-143 distance : 0.776 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star WASP-143 distance : 0.983 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star WASP-143 distance : 0.949 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star WASP-143 distance : 1.040 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star WASP-143 distance : 1.730 AU
  • Kopparapu Outer Boundary for Early Mars for Star WASP-143 distance : 1.824 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star WASP-143)



  • Original Kopparapu Recent Venus for Star WASP-143 distance : 0.779 AU
  • Original Kopparapu Runaway Greenhouse for Star WASP-143 distance : 1.009 AU
  • Original Kopparapu Moist Greenhouse for Star WASP-143 distance : 1.030 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star WASP-143 distance : 1.760 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star WASP-143 distance : 1.830 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star WASP-143)



    (Position in Stellar Map of star WASP-143 and its Exoplanet WASP-143 b)



    (Zoomed position in Stellar Map of star WASP-143 and its Exoplanet WASP-143 b (zoom level 3))

    (Synthetic Spectrum of star WASP-143*)
    *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