HD 180902

Display orbital revolution around the star HD 180902
Imaginary Picture of Star HD 180902
Star Name : HD 180902
Alternate Name :
Star Distance (LY/pc): 322.6073 (LY) 98.9120 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 4.1600 (Rsun, estimated)
Stellar Mass (Msun): 1.4100 (Msun/observed) 1.4100 (Msun/estimated)
Spectral type : K0III/IV
Metalicity : 0.0400
Absolute Magnitude : 2.80
Apparent Magnitude : 7.78
Right Ascension(RA) : 289.82378
Declination(DEC) : -23.55816
  • This is the HD 180902 . The star HD 180902 islocated about 322.6 light-years (98.9 pc) away from our Solar System.
  • The star HD 180902 has apparent magnitude of 7.8, with absolute magnitude of 2.8.
  • It is 1.4 times more massive and 4.2 times bigger compared with our Sun. The surface temperature is 4961 with its spectral types of K0III/IV
  • Number of Extrasolar Planets : 1
  • Name of the 1 Planet HD 180902 b radius 1.221000 mass 1.685000 orbital distance 1.400000
    (Illustration of the HD 180902's Planetary System)



    The Star HD 180902 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 2.218 AU ( 331810326.0 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 3.066 AU ( 458648582.9 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 4.672 AU ( 698878941.6 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 6.875 AU ( 1028430978.5 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 180902)



    Kopparapu's Recent Venus for Star HD 180902 distance : 2.404 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star HD 180902 distance : 3.043 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star HD 180902 distance : 2.940 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star HD 180902 distance : 3.224 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star HD 180902 distance : 5.525 AU
    Kopparapu's Outer Boundary for Early Mars for Star HD 180902 distance : 5.828 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 180902)



  • Original Kopparapu Recent Venus for Star HD 180902 distance : 2.378 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 180902 distance : 3.137 AU
  • Original Kopparapu Moist Greenhouse for Star HD 180902 distance : 3.146 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 180902 distance : 5.617 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 180902 distance : 5.842 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 180902)



    (Position in Stellar Map of star HD 180902 )



    (Zoomed position in Stellar Map of star HD 180902 (zoom level 3))

    (Synthetic Spectrum of star HD 93385 A*)
    *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