HD 189733

Display orbital revolution around the star HD 189733
Imaginary Picture of Star HD 189733
Star Name : HD 189733
Alternate Name :
Star Distance (LY/pc): 64.4979 (LY) 19.7752 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 0.8050 (Rsun, estimated)
Stellar Mass (Msun): 0.8000 (Msun/observed) 0.8000 (Msun/estimated)
Spectral type : K1-K2
Metalicity : -0.0300
Absolute Magnitude : 6.19
Apparent Magnitude : 7.67
Right Ascension(RA) : 300.18214
Declination(DEC) : 22.71083
  • This is the HD 189733 . The star HD 189733 islocated about 64.5 light-years (19.8 pc) away from our Solar System.
  • The star HD 189733 has apparent magnitude of 7.7, 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 4875 with its spectral types of K1-K2
  • Number of Extrasolar Planets : 1
  • Name of the 1 Planet HD 189733 b radius 1.138000 mass 1.142000 orbital distance 0.031420
    (Illustration of the HD 189733's Planetary System)



    The Star HD 189733 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.414 AU ( 62001648.0 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.573 AU ( 85702480.5 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.873 AU ( 130591614.3 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.285 AU ( 192171281.3 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 189733)



    Kopparapu's Recent Venus for Star HD 189733 distance : 0.451 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star HD 189733 distance : 0.571 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star HD 189733 distance : 0.551 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star HD 189733 distance : 0.605 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star HD 189733 distance : 1.040 AU
    Kopparapu's Outer Boundary for Early Mars for Star HD 189733 distance : 1.097 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 189733)



  • Original Kopparapu Recent Venus for Star HD 189733 distance : 0.446 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 189733 distance : 0.589 AU
  • Original Kopparapu Moist Greenhouse for Star HD 189733 distance : 0.590 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 189733 distance : 1.057 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 189733 distance : 1.100 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 189733)



    (Position in Stellar Map of star HD 189733 )



    (Zoomed position in Stellar Map of star HD 189733 (zoom level 3))

    (Synthetic Spectrum of star HD 99706*)
    *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