Kepler-857

Display orbital revolution around the star Kepler-857
Imaginary Picture of Star Kepler-857
Star Name : Kepler-857
Alternate Name : "2MASS J19383177+4324016, KIC 7761545, KOI-1472, WISE J193831.78+432401.8"
Star Distance (LY/pc): 3388.7608 (LY) 1039.0000 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 0.9900 (Rsun, estimated)
Stellar Mass (Msun): 0.9900 (Msun/observed) 0.9900 (Msun/estimated)
Spectral type : G3
Metalicity : 0.0200
Absolute Magnitude : 3.76
Apparent Magnitude : 13.85
Right Ascension(RA) : 294.63239
Declination(DEC) : 43.40047
  • This is the Kepler-857 . The star Kepler-857 islocated about 3388.8 light-years (1039.0 pc) away from our Solar System.
  • The star Kepler-857 has apparent magnitude of 13.8, with absolute magnitude of 3.8.
  • It is 1.0 times more massive and 1.0 times bigger compared with our Sun. The surface temperature is 5773 with its spectral types of G3
  • Number of Extrasolar Planets : 1
  • Name of the 1 Planet Kepler-857 b radius 0.607000 mass 0.213008 orbital distance 0.000000
    (Illustration of the Kepler-857's Planetary System)



    The Star Kepler-857 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.715 AU ( 106929225.7 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.988 AU ( 147804133.9 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.506 AU ( 225220791.1 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.215 AU ( 331422260.3 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-857)



    Kopparapu's Recent Venus for Star Kepler-857 distance : 0.741 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star Kepler-857 distance : 0.938 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-857 distance : 0.906 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star Kepler-857 distance : 0.994 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star Kepler-857 distance : 1.657 AU
    Kopparapu's Outer Boundary for Early Mars for Star Kepler-857 distance : 1.748 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-857)



  • Original Kopparapu Recent Venus for Star Kepler-857 distance : 0.742 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-857 distance : 0.964 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-857 distance : 0.982 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-857 distance : 1.687 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-857 distance : 1.754 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-857)



    (Position in Stellar Map of star Kepler-857 )



    (Zoomed position in Stellar Map of star Kepler-857 (zoom level 3))

    (Synthetic Spectrum of star Kepler-190*)
    *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