HD 28678

Display orbital revolution around the star HD 28678
Imaginary Picture of Star HD 28678
Star Name : HD 28678
Alternate Name :
Star Distance (LY/pc): 623.6252 (LY) 191.2046 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 6.2000 (Rsun, estimated)
Stellar Mass (Msun): 1.7400 (Msun/observed) 1.7400 (Msun/estimated)
Spectral type : K0D
Metalicity : -0.1100
Absolute Magnitude : 2.13
Apparent Magnitude : 8.54
Right Ascension(RA) : 67.85606
Declination(DEC) : 4.57528
  • This is the HD 28678 . The star HD 28678 islocated about 623.6 light-years (191.2 pc) away from our Solar System.
  • The star HD 28678 has apparent magnitude of 8.5, with absolute magnitude of 2.1.
  • It is 1.7 times more massive and 6.2 times bigger compared with our Sun. The surface temperature is 5076 with its spectral types of K0D
  • Number of Extrasolar Planets : 1
  • Name of the 1 Planet HD 28678 b radius 1.049897 mass 1.700000 orbital distance 1.240000
    (Illustration of the HD 28678's Planetary System)



    The Star HD 28678 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 3.461 AU ( 517717718.7 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 4.784 AU ( 715621183.1 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 7.289 AU ( 1090448316.4 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 10.726 AU ( 1604642467.0 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 28678)



    Kopparapu's Recent Venus for Star HD 28678 distance : 3.730 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star HD 28678 distance : 4.723 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star HD 28678 distance : 4.561 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star HD 28678 distance : 5.003 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star HD 28678 distance : 8.534 AU
    Kopparapu's Outer Boundary for Early Mars for Star HD 28678 distance : 9.002 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 28678)



  • Original Kopparapu Recent Venus for Star HD 28678 distance : 3.694 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 28678 distance : 4.865 AU
  • Original Kopparapu Moist Greenhouse for Star HD 28678 distance : 4.887 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 28678 distance : 8.678 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 28678 distance : 9.025 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 28678)



    (Position in Stellar Map of star HD 28678 )



    (Zoomed position in Stellar Map of star HD 28678 (zoom level 3))

    (Synthetic Spectrum of star WASP-39*)
    *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