Kepler-1840

Display orbital revolution around the star Kepler-1840
Imaginary Picture of Star Kepler-1840
Star Name : Kepler-1840
Alternate Name : "KIC 6149910, KOI-2469"
Star Distance (LY/pc): 1673.5293 (LY) 513.1070 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 0.7738 (Rsun, estimated)
Stellar Mass (Msun): 0.7500 (Msun/observed) 0.7500 (Msun/estimated)
Spectral type : K3.5V
Metalicity : -0.0380
Absolute Magnitude : 6.64
Apparent Magnitude : 15.19
Right Ascension(RA) : 298.59482
Declination(DEC) : 41.43594
  • This is the Kepler-1840 . The star Kepler-1840 islocated about 1673.5 light-years (513.1 pc) away from our Solar System.
  • The star Kepler-1840 has apparent magnitude of 15.2, with absolute magnitude of 6.6.
  • It is 0.8 times more massive and 0.8 times bigger compared with our Sun. The surface temperature is 4679 with its spectral types of K3.5V
  • Number of Extrasolar Planets : 1
  • Name of the 1 Planet Kepler-1840 b radius 0.247750 mass 0.021454 orbital distance 0.464400
    (Illustration of the Kepler-1840's Planetary System)



    The Star Kepler-1840 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.367 AU ( 54902602.1 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.507 AU ( 75889743.9 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.773 AU ( 115639175.3 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.138 AU ( 170168112.3 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-1840)



    Kopparapu's Recent Venus for Star Kepler-1840 distance : 0.403 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star Kepler-1840 distance : 0.510 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-1840 distance : 0.492 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star Kepler-1840 distance : 0.540 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star Kepler-1840 distance : 0.937 AU
    Kopparapu's Outer Boundary for Early Mars for Star Kepler-1840 distance : 0.988 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-1840)



  • Original Kopparapu Recent Venus for Star Kepler-1840 distance : 0.397 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-1840 distance : 0.526 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-1840 distance : 0.526 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1840 distance : 0.952 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-1840 distance : 0.990 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-1840)



    (Position in Stellar Map of star Kepler-1840 )



    (Zoomed position in Stellar Map of star Kepler-1840 (zoom level 3))

    (Synthetic Spectrum of star Kepler-764*)
    *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