Kepler-1821

Display orbital revolution around the star Kepler-1821
Imaginary Picture of Star Kepler-1821
Star Name : Kepler-1821
Alternate Name : "KIC 11718144, KOI-2310"
Star Distance (LY/pc): 2608.2663 (LY) 799.6990 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 0.9468 (Rsun, estimated)
Stellar Mass (Msun): 0.9700 (Msun/observed) 0.9700 (Msun/estimated)
Spectral type : G5V
Metalicity : 0.1040
Absolute Magnitude : 5.28
Apparent Magnitude : 14.79
Right Ascension(RA) : 294.52545
Declination(DEC) : 49.87247
  • This is the Kepler-1821 . The star Kepler-1821 islocated about 2608.3 light-years (799.7 pc) away from our Solar System.
  • The star Kepler-1821 has apparent magnitude of 14.8, with absolute magnitude of 5.3.
  • It is 1.0 times more massive and 0.9 times bigger compared with our Sun. The surface temperature is 5524 with its spectral types of G5V
  • Number of Extrasolar Planets : 1
  • Name of the 1 Planet Kepler-1821 b radius 0.231240 mass 0.020121 orbital distance 0.124400
    (Illustration of the Kepler-1821's Planetary System)



    The Star Kepler-1821 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.626 AU ( 93631871.0 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.865 AU ( 129423714.6 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.318 AU ( 197213099.6 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.940 AU ( 290207715.4 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-1821)



    Kopparapu's Recent Venus for Star Kepler-1821 distance : 0.658 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star Kepler-1821 distance : 0.834 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-1821 distance : 0.805 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star Kepler-1821 distance : 0.883 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star Kepler-1821 distance : 1.483 AU
    Kopparapu's Outer Boundary for Early Mars for Star Kepler-1821 distance : 1.565 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-1821)



  • Original Kopparapu Recent Venus for Star Kepler-1821 distance : 0.656 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-1821 distance : 0.858 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-1821 distance : 0.868 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1821 distance : 1.509 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-1821 distance : 1.569 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-1821)



    (Position in Stellar Map of star Kepler-1821 )



    (Zoomed position in Stellar Map of star Kepler-1821 (zoom level 3))

    (Synthetic Spectrum of star Kepler-750*)
    *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