HD 203473

Display orbital revolution around the star HD 203473
Imaginary Picture of Star HD 203473
Star Name : HD 203473
Alternate Name :
Star Distance (LY/pc): 237.3731 (LY) 72.7790 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 1.3300 (Rsun, estimated)
Stellar Mass (Msun): 1.1200 (Msun/observed) 1.1200 (Msun/estimated)
Spectral type : G5
Metalicity : 0.1900
Absolute Magnitude : 3.92
Apparent Magnitude : 8.23
Right Ascension(RA) : 320.57864
Declination(DEC) : 5.02359
  • This is the HD 203473 . The star HD 203473 islocated about 237.4 light-years (72.8 pc) away from our Solar System.
  • The star HD 203473 has apparent magnitude of 8.2, with absolute magnitude of 3.9.
  • It is 1.1 times more massive and 1.3 times bigger compared with our Sun. The surface temperature is 5780 with its spectral types of G5
  • Number of Extrasolar Planets : 1
  • Name of the 1 Planet HD 203473 b radius 0.907830 mass 7.840000 orbital distance 2.730000
    (Illustration of the HD 203473's Planetary System)



    The Star HD 203473 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.963 AU ( 144000974.2 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.331 AU ( 199046978.3 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.027 AU ( 303303546.0 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.983 AU ( 446324454.8 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 203473)



    Kopparapu's Recent Venus for Star HD 203473 distance : 0.998 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star HD 203473 distance : 1.263 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star HD 203473 distance : 1.220 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star HD 203473 distance : 1.338 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star HD 203473 distance : 2.231 AU
    Kopparapu's Outer Boundary for Early Mars for Star HD 203473 distance : 2.353 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 203473)



  • Original Kopparapu Recent Venus for Star HD 203473 distance : 0.999 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 203473 distance : 1.298 AU
  • Original Kopparapu Moist Greenhouse for Star HD 203473 distance : 1.322 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 203473 distance : 2.270 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 203473 distance : 2.361 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 203473)



    (Position in Stellar Map of star HD 203473 )



    (Zoomed position in Stellar Map of star HD 203473 (zoom level 3))

    (Synthetic Spectrum of star HD 102956*)
    *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