WASP-138
Imaginary Picture of Star WASP-138
Star Name : WASP-138
Alternate Name :
Star Distance (LY/pc): 1004.5605 (LY) 308.0000 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 1.3600 (Rsun, estimated)
Stellar Mass (Msun): 1.2200 (Msun/observed) 1.2200 (Msun/estimated)
Spectral type : F9
Metalicity : -0.0900
Absolute Magnitude : 4.37
Apparent Magnitude : 11.81
Right Ascension(RA) : 41.63904
Declination(DEC) : -0.46389
  • This is the WASP-138 . The star WASP-138 islocated about 1004.6 light-years (308.0 pc) away from our Solar System.
  • The star WASP-138 has apparent magnitude of 11.8, with absolute magnitude of 4.4.
  • It is 1.2 times more massive and 1.4 times bigger compared with our Sun. The surface temperature is 6272 with its spectral types of F9
  • Number of Extrasolar Planets : 1
  • Name of the 1 Planet WASP-138 b radius 0.907830 mass 1.220000 orbital distance 0.049400
    (Illustration of the WASP-138's Planetary System)



    The Star WASP-138 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.159 AU ( 173384040.8 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.602 AU ( 239662055.1 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.441 AU ( 365191934.8 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 3.592 AU ( 537395930.1 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star WASP-138)



    Kopparapu's Recent Venus for Star WASP-138 distance : 1.166 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star WASP-138 distance : 1.476 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star WASP-138 distance : 1.426 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star WASP-138 distance : 1.562 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star WASP-138 distance : 2.578 AU
    Kopparapu's Outer Boundary for Early Mars for Star WASP-138 distance : 2.719 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star WASP-138)



  • Original Kopparapu Recent Venus for Star WASP-138 distance : 1.180 AU
  • Original Kopparapu Runaway Greenhouse for Star WASP-138 distance : 1.515 AU
  • Original Kopparapu Moist Greenhouse for Star WASP-138 distance : 1.561 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star WASP-138 distance : 2.625 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star WASP-138 distance : 2.729 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star WASP-138)



    (Position in Stellar Map of star WASP-138 )



    (Zoomed position in Stellar Map of star WASP-138 (zoom level 3))