HD 180777
Imaginary Picture of Star HD 180777
Star Name : HD 180777
Alternate Name :
Star Distance (LY/pc): 89.0406 (LY) 27.3000 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 1.4050 (Rsun, estimated)
Stellar Mass (Msun): 1.7000 (Msun/observed) 1.7000 (Msun/estimated)
Spectral type : A9V
Metalicity : 0.0000
Absolute Magnitude : 2.93
Apparent Magnitude : 5.11
Right Ascension(RA) : 287.29117
Declination(DEC) : 76.56056
  • This is the HD 180777 . The star HD 180777 islocated about 89.0 light-years (27.3 pc) away from our Solar System.
  • The star HD 180777 has apparent magnitude of 5.1, with absolute magnitude of 2.9.
  • It is 1.7 times more massive and 1.4 times bigger compared with our Sun. The surface temperature is 7250 with its spectral types of A9V
  • Number of Extrasolar Planets : 1
  • Name of the 1 Planet HD 180777 b radius 0.907830 mass 25.000000 orbital distance 0.220000
    (Illustration of the HD 180777's Planetary System)



    The Star HD 180777 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.600 AU ( 239340378.6 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 2.211 AU ( 330830950.3 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 3.370 AU ( 504113155.5 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 4.959 AU ( 741824592.1 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 180777)



    Kopparapu's Recent Venus for Star HD 180777 distance : 2.587 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star HD 180777 distance : 3.276 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star HD 180777 distance : 3.163 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star HD 180777 distance : 3.458 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star HD 180777 distance : 5.656 AU
    Kopparapu's Outer Boundary for Early Mars for Star HD 180777 distance : 5.965 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 180777)



  • Original Kopparapu Recent Venus for Star HD 180777 distance : 2.671 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 180777 distance : 3.351 AU
  • Original Kopparapu Moist Greenhouse for Star HD 180777 distance : 3.534 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 180777 distance : 5.760 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 180777 distance : 5.990 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 180777)



    (Position in Stellar Map of star HD 180777 )



    (Zoomed position in Stellar Map of star HD 180777 (zoom level 3))