HD 209458

Display orbital revolution around the star HD 209458
Imaginary Picture of Star HD 209458
Star Name : HD 209458
Alternate Name :
Star Distance (LY/pc): 153.2933 (LY) 47.0000 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 1.2030 (Rsun, estimated)
Stellar Mass (Msun): 1.1480 (Msun/observed) 1.1480 (Msun/estimated)
Spectral type : G0 V
Metalicity : 0.0200
Absolute Magnitude : 4.29
Apparent Magnitude : 7.65
Right Ascension(RA) : 330.79489
Declination(DEC) : 18.88444
  • This is the HD 209458 . The star HD 209458 islocated about 153.3 light-years (47.0 pc) away from our Solar System.
  • The star HD 209458 has apparent magnitude of 7.7, with absolute magnitude of 4.3.
  • It is 1.1 times more massive and 1.2 times bigger compared with our Sun. The surface temperature is 6092 with its spectral types of G0 V
  • Number of Extrasolar Planets : 1
  • Name of the 1 Planet HD 209458 b radius 1.380000 mass 0.690000 orbital distance 0.047470
    (Illustration of the HD 209458's Planetary System)



    The Star HD 209458 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.967 AU ( 144691670.0 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.337 AU ( 200001700.4 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.037 AU ( 304758331.1 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.998 AU ( 448465234.8 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 209458)



    Kopparapu's Recent Venus for Star HD 209458 distance : 0.984 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star HD 209458 distance : 1.246 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star HD 209458 distance : 1.203 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star HD 209458 distance : 1.318 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star HD 209458 distance : 2.183 AU
    Kopparapu's Outer Boundary for Early Mars for Star HD 209458 distance : 2.302 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 209458)



  • Original Kopparapu Recent Venus for Star HD 209458 distance : 0.991 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 209458 distance : 1.279 AU
  • Original Kopparapu Moist Greenhouse for Star HD 209458 distance : 1.312 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 209458 distance : 2.222 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 209458 distance : 2.311 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 209458)



    (Position in Stellar Map of star HD 209458 )



    (Zoomed position in Stellar Map of star HD 209458 (zoom level 3))

    (Synthetic Spectrum of star HD 106315*)
    *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