Kepler-421

Display orbital revolution around the star Kepler-421
Imaginary Picture of Star Kepler-421
Star Name : Kepler-421
Alternate Name : "KOI-1274, 2MASS J18530163+4505159, KIC 8800954, WISE J185301.62+450515.7"
Star Distance (LY/pc): 1043.6992 (LY) 320.0000 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 0.7600 (Rsun, estimated)
Stellar Mass (Msun): 0.7900 (Msun/observed) 0.7900 (Msun/estimated)
Spectral type : G9/K0
Metalicity : -0.2500
Absolute Magnitude : 4.48
Apparent Magnitude : 12.01
Right Ascension(RA) : 283.25682
Declination(DEC) : 45.08778
  • This is the Kepler-421 . The star Kepler-421 islocated about 1043.7 light-years (320.0 pc) away from our Solar System.
  • The star Kepler-421 has apparent magnitude of 12.0, with absolute magnitude of 4.5.
  • It is 0.8 times more massive and 0.8 times bigger compared with our Sun. The surface temperature is 5308 with its spectral types of G9/K0
  • Number of Extrasolar Planets : 1
  • Name of the 1 Planet Kepler-421 b radius 0.371000 mass 0.049111 orbital distance 1.219000
    (Illustration of the Kepler-421's Planetary System)



    The Star Kepler-421 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.464 AU ( 69395855.4 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.641 AU ( 95923207.4 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.977 AU ( 146165740.3 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.438 AU ( 215089290.0 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-421)



    Kopparapu's Recent Venus for Star Kepler-421 distance : 0.494 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star Kepler-421 distance : 0.625 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-421 distance : 0.604 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star Kepler-421 distance : 0.663 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star Kepler-421 distance : 1.121 AU
    Kopparapu's Outer Boundary for Early Mars for Star Kepler-421 distance : 1.182 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-421)



  • Original Kopparapu Recent Venus for Star Kepler-421 distance : 0.491 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-421 distance : 0.644 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-421 distance : 0.649 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-421 distance : 1.140 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-421 distance : 1.185 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-421)



    (Position in Stellar Map of star Kepler-421 )



    (Zoomed position in Stellar Map of star Kepler-421 (zoom level 3))

    (Synthetic Spectrum of star Kepler-20*)
    *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