HD 217786 A

Display orbital revolution around the star HD 217786 A
Imaginary Picture of Star HD 217786 A
Star Name : HD 217786 A
Alternate Name : HD 217786
Star Distance (LY/pc): 184.0609 (LY) 56.4334 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 1.2700 (Rsun, estimated)
Stellar Mass (Msun): 1.0200 (Msun/observed) 1.0200 (Msun/estimated)
Spectral type : F8V
Metalicity : -0.1350
Absolute Magnitude : 4.04
Apparent Magnitude : 7.80
Right Ascension(RA) : 345.78419
Declination(DEC) : 0.42972
  • This is the HD 217786 A . The star HD 217786 A islocated about 184.1 light-years (56.4 pc) away from our Solar System.
  • The star HD 217786 A has apparent magnitude of 7.8, with absolute magnitude of 4.0.
  • It is 1.0 times more massive and 1.3 times bigger compared with our Sun. The surface temperature is 5966 with its spectral types of F8V
  • Number of Extrasolar Planets : 1
  • Name of the 1 Planet HD 217786 A b radius 0.907830 mass 13.000000 orbital distance 2.380000
    (Illustration of the HD 217786 A's Planetary System)



    The Star HD 217786 A 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.979 AU ( 146496865.2 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.354 AU ( 202496951.9 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.063 AU ( 308560542.2 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 3.035 AU ( 454060355.0 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 217786 A)



    Kopparapu's Recent Venus for Star HD 217786 A distance : 1.003 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star HD 217786 A distance : 1.271 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star HD 217786 A distance : 1.227 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star HD 217786 A distance : 1.345 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star HD 217786 A distance : 2.233 AU
    Kopparapu's Outer Boundary for Early Mars for Star HD 217786 A distance : 2.356 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 217786 A)



  • Original Kopparapu Recent Venus for Star HD 217786 A distance : 1.009 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 217786 A distance : 1.305 AU
  • Original Kopparapu Moist Greenhouse for Star HD 217786 A distance : 1.335 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 217786 A distance : 2.273 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 217786 A distance : 2.364 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 217786 A)



    (Position in Stellar Map of star HD 217786 A )



    (Zoomed position in Stellar Map of star HD 217786 A (zoom level 3))

    (Synthetic Spectrum of star HD 115954*)
    *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