HD 23439 A

Display orbital revolution around the star HD 23439 A
Imaginary Picture of Star HD 23439 A
Star Name : HD 23439 A
Alternate Name : "*V580 Per, GJ 1064 A, GJ 9130 A"
Star Distance (LY/pc): 77.9183 (LY) 23.8899 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 0.7230 (Rsun, estimated)
Stellar Mass (Msun): 0.8600 (Msun/observed) 0.8600 (Msun/estimated)
Spectral type : K2V
Metalicity : -1.0512
Absolute Magnitude : 6.23
Apparent Magnitude : 8.12
Right Ascension(RA) : 56.75881
Declination(DEC) : 41.42725
  • This is the HD 23439 A . The star HD 23439 A islocated about 77.9 light-years (23.9 pc) away from our Solar System.
  • The star HD 23439 A has apparent magnitude of 8.1, with absolute magnitude of 6.2.
  • It is 0.9 times more massive and 0.7 times bigger compared with our Sun. The surface temperature is 5098 with its spectral types of K2V
  • Number of Extrasolar Planets : 1
  • Name of the 1 Planet HD 23439 Ab radius 0.159164 mass 0.029000 orbital distance 0.213100
    (Illustration of the HD 23439 A's Planetary System)



    The Star HD 23439 A 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.407 AU ( 60897024.4 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.563 AU ( 84175602.0 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.857 AU ( 128264989.4 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.262 AU ( 188747550.8 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 23439 A)



    Kopparapu's Recent Venus for Star HD 23439 A distance : 0.438 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star HD 23439 A distance : 0.555 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star HD 23439 A distance : 0.536 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star HD 23439 A distance : 0.588 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star HD 23439 A distance : 1.002 AU
    Kopparapu's Outer Boundary for Early Mars for Star HD 23439 A distance : 1.057 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 23439 A)



  • Original Kopparapu Recent Venus for Star HD 23439 A distance : 0.434 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 23439 A distance : 0.572 AU
  • Original Kopparapu Moist Greenhouse for Star HD 23439 A distance : 0.574 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 23439 A distance : 1.019 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 23439 A distance : 1.059 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 23439 A)



    (Position in Stellar Map of star HD 23439 A )



    (Zoomed position in Stellar Map of star HD 23439 A (zoom level 3))

    (Synthetic Spectrum of star HATS-55*)
    *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