HD 211970

Display orbital revolution around the star HD 211970
Imaginary Picture of Star HD 211970
Star Name : HD 211970
Alternate Name :
Star Distance (LY/pc): 42.8243 (LY) 13.1300 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 0.5471 (Rsun, estimated)
Stellar Mass (Msun): 0.6100 (Msun/observed) 0.6100 (Msun/estimated)
Spectral type : K7V
Metalicity : 0.0000
Absolute Magnitude : 21.41
Apparent Magnitude : 22.00
Right Ascension(RA) : 335.57000
Declination(DEC) : -54.56000
  • This is the HD 211970 . The star HD 211970 islocated about 42.8 light-years (13.1 pc) away from our Solar System.
  • The star HD 211970 has apparent magnitude of 22.0, with absolute magnitude of 21.4.
  • It is 0.6 times more massive and 0.5 times bigger compared with our Sun. The surface temperature is 4127 with its spectral types of K7V
  • Number of Extrasolar Planets : 1
  • Name of the 1 Planet HD 211970 b radius 0.208805 mass 0.040900 orbital distance 0.143000
    (Illustration of the HD 211970's Planetary System)



    The Star HD 211970 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.202 AU ( 30197030.9 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.279 AU ( 41740188.1 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.425 AU ( 63602809.7 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.626 AU ( 93594320.7 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 211970)



    Kopparapu's Recent Venus for Star HD 211970 distance : 0.268 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star HD 211970 distance : 0.339 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star HD 211970 distance : 0.328 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star HD 211970 distance : 0.359 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star HD 211970 distance : 0.640 AU
    Kopparapu's Outer Boundary for Early Mars for Star HD 211970 distance : 0.675 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 211970)



  • Original Kopparapu Recent Venus for Star HD 211970 distance : 0.264 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 211970 distance : 0.351 AU
  • Original Kopparapu Moist Greenhouse for Star HD 211970 distance : 0.350 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 211970 distance : 0.650 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 211970 distance : 0.676 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 211970)



    (Position in Stellar Map of star HD 211970 )



    (Zoomed position in Stellar Map of star HD 211970 (zoom level 3))

    (Synthetic Spectrum of star HD 108147*)
    *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