K2-221

Display orbital revolution around the star K2-221
Imaginary Picture of Star K2-221
Star Name : K2-221
Alternate Name : "2MASS J01063719+1011231, EPIC 220650439, WISE J010637.20+101123.0"
Star Distance (LY/pc): 1015.7775 (LY) 311.4392 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 0.9500 (Rsun, estimated)
Stellar Mass (Msun): 1.0100 (Msun/observed) 1.0100 (Msun/estimated)
Spectral type : G4
Metalicity : 0.1300
Absolute Magnitude : 3.76
Apparent Magnitude : 11.23
Right Ascension(RA) : 16.65498
Declination(DEC) : 10.18969
  • This is the K2-221 . The star K2-221 islocated about 1015.8 light-years (311.4 pc) away from our Solar System.
  • The star K2-221 has apparent magnitude of 11.2, with absolute magnitude of 3.8.
  • It is 1.0 times more massive and 0.9 times bigger compared with our Sun. The surface temperature is 5716 with its spectral types of G4
  • Number of Extrasolar Planets : 1
  • Name of the 1 Planet K2-221 b radius 0.150000 mass 0.013453 orbital distance 0.000000
    (Illustration of the K2-221's Planetary System)



    The Star K2-221 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.672 AU ( 100592628.9 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.929 AU ( 139045301.1 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.416 AU ( 211874268.2 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.084 AU ( 311782267.2 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star K2-221)



    Kopparapu's Recent Venus for Star K2-221 distance : 0.700 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star K2-221 distance : 0.886 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star K2-221 distance : 0.856 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star K2-221 distance : 0.938 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star K2-221 distance : 1.567 AU
    Kopparapu's Outer Boundary for Early Mars for Star K2-221 distance : 1.653 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star K2-221)



  • Original Kopparapu Recent Venus for Star K2-221 distance : 0.700 AU
  • Original Kopparapu Runaway Greenhouse for Star K2-221 distance : 0.910 AU
  • Original Kopparapu Moist Greenhouse for Star K2-221 distance : 0.926 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star K2-221 distance : 1.594 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star K2-221 distance : 1.658 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star K2-221)



    (Position in Stellar Map of star K2-221 )



    (Zoomed position in Stellar Map of star K2-221 (zoom level 3))

    (Synthetic Spectrum of star Kepler-1012*)
    *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