HD 4917

Display orbital revolution around the star HD 4917
Imaginary Picture of Star HD 4917
Star Name : HD 4917
Alternate Name :
Star Distance (LY/pc): 438.3537 (LY) 134.4000 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 5.0100 (Rsun, estimated)
Stellar Mass (Msun): 1.3200 (Msun/observed) 1.3200 (Msun/estimated)
Spectral type : KOIII/IV
Metalicity : 0.0000
Absolute Magnitude : 2.40
Apparent Magnitude : 8.04
Right Ascension(RA) : 12.77500
Declination(DEC) : -11.07250
  • This is the HD 4917 . The star HD 4917 islocated about 438.4 light-years (134.4 pc) away from our Solar System.
  • The star HD 4917 has apparent magnitude of 8.0, with absolute magnitude of 2.4.
  • It is 1.3 times more massive and 5.0 times bigger compared with our Sun. The surface temperature is 4802 with its spectral types of KOIII/IV
  • Number of Extrasolar Planets : 1
  • Name of the 1 Planet HD 4917 b radius 1.224000 mass 1.615000 orbital distance 0.000000
    (Illustration of the HD 4917's Planetary System)



    The Star HD 4917 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 2.503 AU ( 374403715.4 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 3.459 AU ( 517523778.0 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 5.271 AU ( 788591709.9 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 7.757 AU ( 1160447247.2 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 4917)



    Kopparapu's Recent Venus for Star HD 4917 distance : 2.732 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star HD 4917 distance : 3.459 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star HD 4917 distance : 3.341 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star HD 4917 distance : 3.663 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star HD 4917 distance : 6.320 AU
    Kopparapu's Outer Boundary for Early Mars for Star HD 4917 distance : 6.667 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 4917)



  • Original Kopparapu Recent Venus for Star HD 4917 distance : 2.699 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 4917 distance : 3.567 AU
  • Original Kopparapu Moist Greenhouse for Star HD 4917 distance : 3.571 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 4917 distance : 6.425 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 4917 distance : 6.682 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 4917)



    (Position in Stellar Map of star HD 4917 )



    (Zoomed position in Stellar Map of star HD 4917 (zoom level 3))

    (Synthetic Spectrum of star HAT-P-44*)
    *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