HD 203771

Display orbital revolution around the star HD 203771
Imaginary Picture of Star HD 203771
Star Name : HD 203771
Alternate Name :
Star Distance (LY/pc): 182.1164 (LY) 55.8372 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 0.8140 (Rsun, estimated)
Stellar Mass (Msun): 0.8200 (Msun/observed) 0.8200 (Msun/estimated)
Spectral type : K1V
Metalicity : 0.1300
Absolute Magnitude : 6.25
Apparent Magnitude : 9.98
Right Ascension(RA) : 321.25765
Declination(DEC) : -23.31889
  • This is the HD 203771 . The star HD 203771 islocated about 182.1 light-years (55.8 pc) away from our Solar System.
  • The star HD 203771 has apparent magnitude of 10.0, with absolute magnitude of 6.2.
  • It is 0.8 times more massive and 0.8 times bigger compared with our Sun. The surface temperature is 4963 with its spectral types of K1V
  • Number of Extrasolar Planets : 1
  • Name of the 1 Planet HD 203771 b radius 0.907830 mass 56.280000 orbital distance 2.006000
    (Illustration of the HD 203771's Planetary System)



    The Star HD 203771 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.434 AU ( 64978707.4 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.600 AU ( 89817554.6 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.915 AU ( 136862076.6 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.346 AU ( 201398541.3 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 203771)



    Kopparapu's Recent Venus for Star HD 203771 distance : 0.471 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star HD 203771 distance : 0.596 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star HD 203771 distance : 0.576 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star HD 203771 distance : 0.631 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star HD 203771 distance : 1.082 AU
    Kopparapu's Outer Boundary for Early Mars for Star HD 203771 distance : 1.141 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 203771)



  • Original Kopparapu Recent Venus for Star HD 203771 distance : 0.466 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 203771 distance : 0.614 AU
  • Original Kopparapu Moist Greenhouse for Star HD 203771 distance : 0.616 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 203771 distance : 1.100 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 203771 distance : 1.144 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 203771)



    (Position in Stellar Map of star HD 203771 )



    (Zoomed position in Stellar Map of star HD 203771 (zoom level 3))

    (Synthetic Spectrum of star HD 103197*)
    *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