HD 187123
Imaginary Picture of Star HD 187123
Star Name : HD 187123
Alternate Name :
Star Distance (LY/pc): 157.4112 (LY) 48.2625 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 1.1700 (Rsun, estimated)
Stellar Mass (Msun): 1.0600 (Msun/observed) 1.0600 (Msun/estimated)
Spectral type : G5
Metalicity : 0.1600
Absolute Magnitude : 4.44
Apparent Magnitude : 7.86
Right Ascension(RA) : 296.73750
Declination(DEC) : 34.42083
  • This is the HD 187123 . The star HD 187123 islocated about 157.4 light-years (48.3 pc) away from our Solar System.
  • The star HD 187123 has apparent magnitude of 7.9, with absolute magnitude of 4.4.
  • It is 1.1 times more massive and 1.2 times bigger compared with our Sun. The surface temperature is 5714 with its spectral types of G5
  • Number of Extrasolar Planets : 2
  • Name of the 1 Planet HD 187123 b radius 0.907830 mass 0.520000 orbital distance 0.042600
  • Name of the 2 Planet HD 187123 c radius 0.907830 mass 1.990000 orbital distance 4.890000
    (Illustration of the HD 187123's Planetary System)



    The Star HD 187123 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.828 AU ( 123801083.7 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.144 AU ( 171125450.8 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.743 AU ( 260757317.0 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.565 AU ( 383715815.0 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 187123)



    Kopparapu's Recent Venus for Star HD 187123 distance : 0.861 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star HD 187123 distance : 1.090 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star HD 187123 distance : 1.053 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star HD 187123 distance : 1.155 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star HD 187123 distance : 1.929 AU
    Kopparapu's Outer Boundary for Early Mars for Star HD 187123 distance : 2.034 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 187123)



  • Original Kopparapu Recent Venus for Star HD 187123 distance : 0.861 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 187123 distance : 1.121 AU
  • Original Kopparapu Moist Greenhouse for Star HD 187123 distance : 1.139 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 187123 distance : 1.963 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 187123 distance : 2.041 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 187123)



    (Position in Stellar Map of star HD 187123 )



    (Zoomed position in Stellar Map of star HD 187123 (zoom level 3))