Kepler-1221

Display orbital revolution around the star Kepler-1221
Imaginary Picture of Star Kepler-1221
Star Name : Kepler-1221
Alternate Name : "2MASS J19031736+4542428, KIC 9269042, KOI-2397, WISE J190317.37+454242.6"
Star Distance (LY/pc): 2964.7580 (LY) 909.0000 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 0.8200 (Rsun, estimated)
Stellar Mass (Msun): 0.8700 (Msun/observed) 0.8700 (Msun/estimated)
Spectral type : K0
Metalicity : 0.0900
Absolute Magnitude : 4.32
Apparent Magnitude : 14.12
Right Ascension(RA) : 285.82235
Declination(DEC) : 45.71189
  • This is the Kepler-1221 . The star Kepler-1221 islocated about 2964.8 light-years (909.0 pc) away from our Solar System.
  • The star Kepler-1221 has apparent magnitude of 14.1, with absolute magnitude of 4.3.
  • It is 0.9 times more massive and 0.8 times bigger compared with our Sun. The surface temperature is 5194 with its spectral types of K0
  • Number of Extrasolar Planets : 1
  • Name of the 1 Planet Kepler-1221 b radius 0.168000 mass 0.014949 orbital distance 0.000000
    (Illustration of the Kepler-1221's Planetary System)



    The Star Kepler-1221 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.479 AU ( 71692851.7 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.662 AU ( 99098256.6 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.009 AU ( 151003812.7 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.485 AU ( 222208725.4 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-1221)



    Kopparapu's Recent Venus for Star Kepler-1221 distance : 0.513 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star Kepler-1221 distance : 0.650 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-1221 distance : 0.628 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star Kepler-1221 distance : 0.689 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star Kepler-1221 distance : 1.170 AU
    Kopparapu's Outer Boundary for Early Mars for Star Kepler-1221 distance : 1.234 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-1221)



  • Original Kopparapu Recent Venus for Star Kepler-1221 distance : 0.509 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-1221 distance : 0.669 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-1221 distance : 0.674 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1221 distance : 1.189 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-1221 distance : 1.237 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-1221)



    (Position in Stellar Map of star Kepler-1221 )



    (Zoomed position in Stellar Map of star Kepler-1221 (zoom level 3))

    (Synthetic Spectrum of star Kepler-374*)
    *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