WASP-18
Imaginary Picture of Star WASP-18
Star Name : WASP-18
Alternate Name :
Star Distance (LY/pc): 404.1887 (LY) 123.9250 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 1.2300 (Rsun, estimated)
Stellar Mass (Msun): 1.2400 (Msun/observed) 1.2400 (Msun/estimated)
Spectral type : F6
Metalicity : 0.0000
Absolute Magnitude : 3.83
Apparent Magnitude : 9.30
Right Ascension(RA) : 24.35431
Declination(DEC) : -45.67778
  • This is the WASP-18 . The star WASP-18 islocated about 404.2 light-years (123.9 pc) away from our Solar System.
  • The star WASP-18 has apparent magnitude of 9.3, with absolute magnitude of 3.8.
  • It is 1.2 times more massive and 1.2 times bigger compared with our Sun. The surface temperature is 6400 with its spectral types of F6
  • Number of Extrasolar Planets : 2
  • Name of the 1 Planet WASP-18 b radius 1.165000 mass 10.429600 orbital distance 0.020470
  • Name of the 2 Planet WASP-18 c radius 0.907830 mass 0.173700 orbital distance 0.000000
    (Illustration of the WASP-18's Planetary System)



    The Star WASP-18 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.091 AU ( 163276308.1 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.509 AU ( 225690527.0 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.299 AU ( 343902418.0 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 3.383 AU ( 506067473.4 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star WASP-18)



    Kopparapu's Recent Venus for Star WASP-18 distance : 1.089 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star WASP-18 distance : 1.380 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star WASP-18 distance : 1.332 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star WASP-18 distance : 1.459 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star WASP-18 distance : 2.404 AU
    Kopparapu's Outer Boundary for Early Mars for Star WASP-18 distance : 2.535 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star WASP-18)



  • Original Kopparapu Recent Venus for Star WASP-18 distance : 1.106 AU
  • Original Kopparapu Runaway Greenhouse for Star WASP-18 distance : 1.415 AU
  • Original Kopparapu Moist Greenhouse for Star WASP-18 distance : 1.463 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star WASP-18 distance : 2.447 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star WASP-18 distance : 2.545 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star WASP-18)



    (Position in Stellar Map of star WASP-18 )



    (Zoomed position in Stellar Map of star WASP-18 (zoom level 3))