HD 156668

Display orbital revolution around the star HD 156668
Imaginary Picture of Star HD 156668
Star Name : HD 156668
Alternate Name :
Star Distance (LY/pc): 79.8228 (LY) 24.4738 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 0.7200 (Rsun, estimated)
Stellar Mass (Msun): 0.7720 (Msun/observed) 0.7720 (Msun/estimated)
Spectral type : K3V
Metalicity : 0.0500
Absolute Magnitude : 6.48
Apparent Magnitude : 8.42
Right Ascension(RA) : 259.41871
Declination(DEC) : 29.22722
  • This is the HD 156668 . The star HD 156668 islocated about 79.8 light-years (24.5 pc) away from our Solar System.
  • The star HD 156668 has apparent magnitude of 8.4, with absolute magnitude of 6.5.
  • It is 0.8 times more massive and 0.7 times bigger compared with our Sun. The surface temperature is 4850 with its spectral types of K3V
  • Number of Extrasolar Planets : 2
  • Name of the 1 Planet HD 156668 b radius 0.130129 mass 0.013100 orbital distance 0.050000
  • Name of the 2 Planet HD 156668 c radius 0.136517 mass 0.015800 orbital distance 0.050250
    (Illustration of the HD 156668's Planetary System)



    The Star HD 156668 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.367 AU ( 54887580.4 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.507 AU ( 75868979.9 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.773 AU ( 115607535.6 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.137 AU ( 170121553.1 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 156668)



    Kopparapu's Recent Venus for Star HD 156668 distance : 0.400 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star HD 156668 distance : 0.506 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star HD 156668 distance : 0.489 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star HD 156668 distance : 0.536 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star HD 156668 distance : 0.923 AU
    Kopparapu's Outer Boundary for Early Mars for Star HD 156668 distance : 0.973 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 156668)



  • Original Kopparapu Recent Venus for Star HD 156668 distance : 0.395 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 156668 distance : 0.522 AU
  • Original Kopparapu Moist Greenhouse for Star HD 156668 distance : 0.523 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 156668 distance : 0.938 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 156668 distance : 0.976 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 156668)



    (Position in Stellar Map of star HD 156668 )



    (Zoomed position in Stellar Map of star HD 156668 (zoom level 3))

    (Synthetic Spectrum of star HD 81688*)
    *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