GJ 3222 A

Display orbital revolution around the star GJ 3222 A
Imaginary Picture of Star GJ 3222 A
Star Name : GJ 3222 A
Alternate Name : "HD 21175, HD 21175 A, HIP 15799"
Star Distance (LY/pc): 57.7035 (LY) 17.6920 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 0.7795 (Rsun, estimated)
Stellar Mass (Msun): 0.8600 (Msun/observed) 0.8600 (Msun/estimated)
Spectral type : K0V
Metalicity : 0.1600
Absolute Magnitude : 5.66
Apparent Magnitude : 6.90
Right Ascension(RA) : 50.89690
Declination(DEC) : -40.07638
  • This is the GJ 3222 A . The star GJ 3222 A islocated about 57.7 light-years (17.7 pc) away from our Solar System.
  • The star GJ 3222 A has apparent magnitude of 6.9, with absolute magnitude of 5.7.
  • It is 0.9 times more massive and 0.8 times bigger compared with our Sun. The surface temperature is 5257 with its spectral types of K0V
  • Number of Extrasolar Planets : 2
  • Name of the 1 Planet GJ 3222 Ab radius 0.202766 mass 0.036000 orbital distance 0.091000
  • Name of the 2 Planet GJ 3222 Ac radius 0.907830 mass 52.213000 orbital distance 2.391000
    (Illustration of the GJ 3222 A's Planetary System)



    The Star GJ 3222 A 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.467 AU ( 69816207.8 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.645 AU ( 96504244.4 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.983 AU ( 147051112.1 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.446 AU ( 216392153.3 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star GJ 3222 A)



    Kopparapu's Recent Venus for Star GJ 3222 A distance : 0.476 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star GJ 3222 A distance : 0.603 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star GJ 3222 A distance : 0.582 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star GJ 3222 A distance : 0.639 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star GJ 3222 A distance : 1.082 AU
    Kopparapu's Outer Boundary for Early Mars for Star GJ 3222 A distance : 1.141 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star GJ 3222 A)



  • Original Kopparapu Recent Venus for Star GJ 3222 A distance : 0.472 AU
  • Original Kopparapu Runaway Greenhouse for Star GJ 3222 A distance : 0.621 AU
  • Original Kopparapu Moist Greenhouse for Star GJ 3222 A distance : 0.625 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star GJ 3222 A distance : 1.100 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star GJ 3222 A distance : 1.144 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star GJ 3222 A)



    (Position in Stellar Map of star GJ 3222 A )



    (Zoomed position in Stellar Map of star GJ 3222 A (zoom level 3))

    (Synthetic Spectrum of star GJ 180*)
    *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