Kepler-1857

Display orbital revolution around the star Kepler-1857
Imaginary Picture of Star Kepler-1857
Star Name : Kepler-1857
Alternate Name : "KIC 4484336, KOI-2547"
Star Distance (LY/pc): 2783.0076 (LY) 853.2750 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 1.1100 (Rsun, estimated)
Stellar Mass (Msun): 1.1700 (Msun/observed) 1.1700 (Msun/estimated)
Spectral type : F8V
Metalicity : -0.5400
Absolute Magnitude : 4.70
Apparent Magnitude : 14.36
Right Ascension(RA) : 296.45575
Declination(DEC) : 39.59859
  • This is the Kepler-1857 . The star Kepler-1857 islocated about 2783.0 light-years (853.3 pc) away from our Solar System.
  • The star Kepler-1857 has apparent magnitude of 14.4, with absolute magnitude of 4.7.
  • It is 1.2 times more massive and 1.1 times bigger compared with our Sun. The surface temperature is 6147 with its spectral types of F8V
  • Number of Extrasolar Planets : 1
  • Name of the 1 Planet Kepler-1857 b radius 0.174900 mass 0.015519 orbital distance 0.080700
    (Illustration of the Kepler-1857's Planetary System)



    The Star Kepler-1857 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.909 AU ( 135927558.9 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.256 AU ( 187887408.5 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.914 AU ( 286298831.1 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.816 AU ( 421301272.0 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-1857)



    Kopparapu's Recent Venus for Star Kepler-1857 distance : 0.921 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star Kepler-1857 distance : 1.166 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-1857 distance : 1.126 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star Kepler-1857 distance : 1.234 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star Kepler-1857 distance : 2.041 AU
    Kopparapu's Outer Boundary for Early Mars for Star Kepler-1857 distance : 2.153 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-1857)



  • Original Kopparapu Recent Venus for Star Kepler-1857 distance : 0.929 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-1857 distance : 1.197 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-1857 distance : 1.230 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1857 distance : 2.078 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-1857 distance : 2.161 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-1857)



    (Position in Stellar Map of star Kepler-1857 )



    (Zoomed position in Stellar Map of star Kepler-1857 (zoom level 3))

    (Synthetic Spectrum of star Kepler-778*)
    *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