WASP-81
Imaginary Picture of Star WASP-81
Star Name : WASP-81
Alternate Name :
Star Distance (LY/pc): 1337.2396 (LY) 410.0000 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 1.2830 (Rsun, estimated)
Stellar Mass (Msun): 1.0800 (Msun/observed) 1.0800 (Msun/estimated)
Spectral type : G1
Metalicity : -0.3600
Absolute Magnitude : 2.83
Apparent Magnitude : 10.89
Right Ascension(RA) : 304.20788
Declination(DEC) : 3.29408
  • This is the WASP-81 . The star WASP-81 islocated about 1337.2 light-years (410.0 pc) away from our Solar System.
  • The star WASP-81 has apparent magnitude of 10.9, with absolute magnitude of 2.8.
  • It is 1.1 times more massive and 1.3 times bigger compared with our Sun. The surface temperature is 5870 with its spectral types of G1
  • Number of Extrasolar Planets : 2
  • Name of the 1 Planet WASP-81 b radius 1.429000 mass 0.729000 orbital distance 0.039080
  • Name of the 2 Planet WASP-81 c radius 0.907830 mass 56.600000 orbital distance 2.426000
    (Illustration of the WASP-81 's Planetary System)



    The Star WASP-81 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.958 AU ( 143271883.8 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.324 AU ( 198039184.9 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.017 AU ( 301767891.8 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.968 AU ( 444064672.4 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star WASP-81 )



    Kopparapu's Recent Venus for Star WASP-81 distance : 0.987 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star WASP-81 distance : 1.250 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star WASP-81 distance : 1.207 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star WASP-81 distance : 1.324 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star WASP-81 distance : 2.202 AU
    Kopparapu's Outer Boundary for Early Mars for Star WASP-81 distance : 2.323 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star WASP-81 )



  • Original Kopparapu Recent Venus for Star WASP-81 distance : 0.990 AU
  • Original Kopparapu Runaway Greenhouse for Star WASP-81 distance : 1.284 AU
  • Original Kopparapu Moist Greenhouse for Star WASP-81 distance : 1.310 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star WASP-81 distance : 2.241 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star WASP-81 distance : 2.331 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star WASP-81 )



    (Position in Stellar Map of star WASP-81 )



    (Zoomed position in Stellar Map of star WASP-81 (zoom level 3))