HD 212771

Display orbital revolution around the star HD 212771
Imaginary Picture of Star HD 212771
Star Name : HD 212771
Alternate Name :
Star Distance (LY/pc): 364.4201 (LY) 111.7318 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 5.0000 (Rsun, estimated)
Stellar Mass (Msun): 1.1500 (Msun/observed) 1.1500 (Msun/estimated)
Spectral type : G8IV
Metalicity : -0.2100
Absolute Magnitude : 2.36
Apparent Magnitude : 7.60
Right Ascension(RA) : 336.76280
Declination(DEC) : -17.26361
  • This is the HD 212771 . The star HD 212771 islocated about 364.4 light-years (111.7 pc) away from our Solar System.
  • The star HD 212771 has apparent magnitude of 7.6, with absolute magnitude of 2.4.
  • It is 1.1 times more massive and 5.0 times bigger compared with our Sun. The surface temperature is 5121 with its spectral types of G8IV
  • Number of Extrasolar Planets : 1
  • Name of the 1 Planet HD 212771 b radius 1.049887 mass 2.300000 orbital distance 1.220000
    (Illustration of the HD 212771's Planetary System)



    The Star HD 212771 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 2.841 AU ( 424949838.4 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 3.926 AU ( 587391729.4 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 5.983 AU ( 895055006.1 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 8.804 AU ( 1317112651.3 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 212771)



    Kopparapu's Recent Venus for Star HD 212771 distance : 3.055 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star HD 212771 distance : 3.868 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star HD 212771 distance : 3.736 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star HD 212771 distance : 4.097 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star HD 212771 distance : 6.977 AU
    Kopparapu's Outer Boundary for Early Mars for Star HD 212771 distance : 7.359 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 212771)



  • Original Kopparapu Recent Venus for Star HD 212771 distance : 3.026 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 212771 distance : 3.984 AU
  • Original Kopparapu Moist Greenhouse for Star HD 212771 distance : 4.004 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 212771 distance : 7.095 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 212771 distance : 7.378 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 212771)



    (Position in Stellar Map of star HD 212771 )



    (Zoomed position in Stellar Map of star HD 212771 (zoom level 3))

    (Synthetic Spectrum of star HD108236*)
    *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