HD 39855

Display orbital revolution around the star HD 39855
Imaginary Picture of Star HD 39855
Star Name : HD 39855
Alternate Name :
Star Distance (LY/pc): 75.9291 (LY) 23.2800 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 0.7953 (Rsun, estimated)
Stellar Mass (Msun): 0.8700 (Msun/observed) 0.8700 (Msun/estimated)
Spectral type : G8V
Metalicity : 0.0000
Absolute Magnitude : 20.17
Apparent Magnitude : 22.00
Right Ascension(RA) : 88.63000
Declination(DEC) : -19.70000
  • This is the HD 39855 . The star HD 39855 islocated about 75.9 light-years (23.3 pc) away from our Solar System.
  • The star HD 39855 has apparent magnitude of 22.0, with absolute magnitude of 20.2.
  • It is 0.9 times more massive and 0.8 times bigger compared with our Sun. The surface temperature is 5576 with its spectral types of G8V
  • Number of Extrasolar Planets : 1
  • Name of the 1 Planet HD 39855 b radius 0.155899 mass 0.026700 orbital distance 0.041000
    (Illustration of the HD 39855's Planetary System)



    The Star HD 39855 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.536 AU ( 80133266.2 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.740 AU ( 110765115.3 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.128 AU ( 168781523.4 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.660 AU ( 248369405.5 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 39855)



    Kopparapu's Recent Venus for Star HD 39855 distance : 0.542 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star HD 39855 distance : 0.686 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star HD 39855 distance : 0.663 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star HD 39855 distance : 0.727 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star HD 39855 distance : 1.218 AU
    Kopparapu's Outer Boundary for Early Mars for Star HD 39855 distance : 1.285 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 39855)



  • Original Kopparapu Recent Venus for Star HD 39855 distance : 0.540 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 39855 distance : 0.705 AU
  • Original Kopparapu Moist Greenhouse for Star HD 39855 distance : 0.715 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 39855 distance : 1.240 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 39855 distance : 1.289 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 39855)



    (Position in Stellar Map of star HD 39855 )



    (Zoomed position in Stellar Map of star HD 39855 (zoom level 3))

    (Synthetic Spectrum of star HD 4308*)
    *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