HD 4203

Display orbital revolution around the star HD 4203
Imaginary Picture of Star HD 4203
Star Name : HD 4203
Alternate Name :
Star Distance (LY/pc): 257.4238 (LY) 78.9266 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 1.3300 (Rsun, estimated)
Stellar Mass (Msun): 1.1300 (Msun/observed) 1.1300 (Msun/estimated)
Spectral type : G5
Metalicity : 0.4530
Absolute Magnitude : 4.19
Apparent Magnitude : 8.68
Right Ascension(RA) : 11.17083
Declination(DEC) : 20.44889
  • This is the HD 4203 . The star HD 4203 islocated about 257.4 light-years (78.9 pc) away from our Solar System.
  • The star HD 4203 has apparent magnitude of 8.7, with absolute magnitude of 4.2.
  • It is 1.1 times more massive and 1.3 times bigger compared with our Sun. The surface temperature is 5701 with its spectral types of G5
  • Number of Extrasolar Planets : 2
  • Name of the 1 Planet HD 4203 b radius 0.907830 mass 1.820000 orbital distance 1.164000
  • Name of the 2 Planet HD 4203 c radius 0.907830 mass 2.170000 orbital distance 0.000000
    (Illustration of the HD 4203's Planetary System)



    The Star HD 4203 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.936 AU ( 140091516.1 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.294 AU ( 193643085.6 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.972 AU ( 295069209.3 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.902 AU ( 434207267.6 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 4203)



    Kopparapu's Recent Venus for Star HD 4203 distance : 0.975 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star HD 4203 distance : 1.235 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star HD 4203 distance : 1.193 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star HD 4203 distance : 1.308 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star HD 4203 distance : 2.185 AU
    Kopparapu's Outer Boundary for Early Mars for Star HD 4203 distance : 2.305 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 4203)



  • Original Kopparapu Recent Venus for Star HD 4203 distance : 0.975 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 4203 distance : 1.269 AU
  • Original Kopparapu Moist Greenhouse for Star HD 4203 distance : 1.290 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 4203 distance : 2.223 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 4203 distance : 2.312 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 4203)



    (Position in Stellar Map of star HD 4203 )



    (Zoomed position in Stellar Map of star HD 4203 (zoom level 3))

    (Synthetic Spectrum of star HAT-P-38*)
    *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