HD 103720

Display orbital revolution around the star HD 103720
Imaginary Picture of Star HD 103720
Star Name : HD 103720
Alternate Name :
Star Distance (LY/pc): 149.8190 (LY) 45.9348 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 0.7300 (Rsun, estimated)
Stellar Mass (Msun): 0.7940 (Msun/observed) 0.7940 (Msun/estimated)
Spectral type : K3V
Metalicity : -0.0200
Absolute Magnitude : 6.18
Apparent Magnitude : 9.49
Right Ascension(RA) : 179.17161
Declination(DEC) : -2.77889
  • This is the HD 103720 . The star HD 103720 islocated about 149.8 light-years (45.9 pc) away from our Solar System.
  • The star HD 103720 has apparent magnitude of 9.5, with absolute magnitude of 6.2.
  • It is 0.8 times more massive and 0.7 times bigger compared with our Sun. The surface temperature is 5017 with its spectral types of K3V
  • Number of Extrasolar Planets : 1
  • Name of the 1 Planet HD 103720 b radius 1.049964 mass 0.620000 orbital distance 0.049800
    (Illustration of the HD 103720's Planetary System)



    The Star HD 103720 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.398 AU ( 59548273.5 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.550 AU ( 82311275.9 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.838 AU ( 125424169.0 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.234 AU ( 184567159.1 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 103720)



    Kopparapu's Recent Venus for Star HD 103720 distance : 0.430 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star HD 103720 distance : 0.545 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star HD 103720 distance : 0.526 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star HD 103720 distance : 0.577 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star HD 103720 distance : 0.987 AU
    Kopparapu's Outer Boundary for Early Mars for Star HD 103720 distance : 1.041 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 103720)



  • Original Kopparapu Recent Venus for Star HD 103720 distance : 0.426 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 103720 distance : 0.561 AU
  • Original Kopparapu Moist Greenhouse for Star HD 103720 distance : 0.563 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 103720 distance : 1.003 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 103720 distance : 1.043 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 103720)



    (Position in Stellar Map of star HD 103720 )



    (Zoomed position in Stellar Map of star HD 103720 (zoom level 3))

    (Synthetic Spectrum of star HD 37124*)
    *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