Kepler-1820

Display orbital revolution around the star Kepler-1820
Imaginary Picture of Star Kepler-1820
Star Name : Kepler-1820
Alternate Name : "KIC 10874215, KOI-2305"
Star Distance (LY/pc): 4648.9950 (LY) 1425.3900 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 1.0496 (Rsun, estimated)
Stellar Mass (Msun): 0.9800 (Msun/observed) 0.9800 (Msun/estimated)
Spectral type : G5V
Metalicity : 0.0700
Absolute Magnitude : 4.99
Apparent Magnitude : 15.76
Right Ascension(RA) : 296.71274
Declination(DEC) : 48.27231
  • This is the Kepler-1820 . The star Kepler-1820 islocated about 4649.0 light-years (1425.4 pc) away from our Solar System.
  • The star Kepler-1820 has apparent magnitude of 15.8, with absolute magnitude of 5.0.
  • It is 1.0 times more massive and 1.0 times bigger compared with our Sun. The surface temperature is 5563 with its spectral types of G5V
  • Number of Extrasolar Planets : 1
  • Name of the 1 Planet Kepler-1820 b radius 0.278243 mass 0.023899 orbital distance 0.196400
    (Illustration of the Kepler-1820's Planetary System)



    The Star Kepler-1820 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.704 AU ( 105268892.6 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.973 AU ( 145509119.6 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.482 AU ( 221723697.2 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.181 AU ( 326276133.6 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-1820)



    Kopparapu's Recent Venus for Star Kepler-1820 distance : 0.739 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star Kepler-1820 distance : 0.935 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-1820 distance : 0.903 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star Kepler-1820 distance : 0.991 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star Kepler-1820 distance : 1.662 AU
    Kopparapu's Outer Boundary for Early Mars for Star Kepler-1820 distance : 1.753 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-1820)



  • Original Kopparapu Recent Venus for Star Kepler-1820 distance : 0.737 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-1820 distance : 0.962 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-1820 distance : 0.975 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1820 distance : 1.691 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-1820 distance : 1.758 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-1820)



    (Position in Stellar Map of star Kepler-1820 )



    (Zoomed position in Stellar Map of star Kepler-1820 (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