WASP-121

Display orbital revolution around the star WASP-121
Imaginary Picture of Star WASP-121
Star Name : WASP-121
Alternate Name :
Star Distance (LY/pc): 853.8115 (LY) 261.7801 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 1.4580 (Rsun, estimated)
Stellar Mass (Msun): 1.3530 (Msun/observed) 1.3530 (Msun/estimated)
Spectral type : F6V
Metalicity : 0.1300
Absolute Magnitude : 3.31
Apparent Magnitude : 10.40
Right Ascension(RA) : 107.60025
Declination(DEC) : -39.09750
  • This is the WASP-121 . The star WASP-121 islocated about 853.8 light-years (261.8 pc) away from our Solar System.
  • The star WASP-121 has apparent magnitude of 10.4, with absolute magnitude of 3.3.
  • It is 1.4 times more massive and 1.5 times bigger compared with our Sun. The surface temperature is 6460 with its spectral types of F6V
  • Number of Extrasolar Planets : 1
  • Name of the 1 Planet WASP-121 b radius 1.865000 mass 1.184000 orbital distance 0.025440
    (Illustration of the WASP-121's Planetary System)



    The Star WASP-121 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.318 AU ( 197188086.4 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.822 AU ( 272565466.8 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.776 AU ( 415329452.8 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 4.085 AU ( 611175484.2 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star WASP-121)



    Kopparapu's Recent Venus for Star WASP-121 distance : 1.311 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star WASP-121 distance : 1.660 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star WASP-121 distance : 1.603 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star WASP-121 distance : 1.756 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star WASP-121 distance : 2.890 AU
    Kopparapu's Outer Boundary for Early Mars for Star WASP-121 distance : 3.048 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star WASP-121)



  • Original Kopparapu Recent Venus for Star WASP-121 distance : 1.332 AU
  • Original Kopparapu Runaway Greenhouse for Star WASP-121 distance : 1.702 AU
  • Original Kopparapu Moist Greenhouse for Star WASP-121 distance : 1.763 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star WASP-121 distance : 2.943 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star WASP-121 distance : 3.060 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star WASP-121)



    (Position in Stellar Map of star WASP-121 )



    (Zoomed position in Stellar Map of star WASP-121 (zoom level 3))

    (Synthetic Spectrum of star K2-252*)
    *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