Kepler-87

Display orbital revolution around the star Kepler-87
Imaginary Picture of Star Kepler-87
Star Name : Kepler-87
Alternate Name : "KOI-1574, 2MASS J19514005+4657544, KIC 10028792, WISE J195140.04+465754.4"
Star Distance (LY/pc): 4167.8823 (LY) 1277.8800 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 1.8200 (Rsun, estimated)
Stellar Mass (Msun): 1.1000 (Msun/observed) 1.1000 (Msun/estimated)
Spectral type : G6
Metalicity : -0.1700
Absolute Magnitude : 4.47
Apparent Magnitude : 15.00
Right Ascension(RA) : 297.91688
Declination(DEC) : 46.96513
  • This is the Kepler-87 . The star Kepler-87 islocated about 4167.9 light-years (1277.9 pc) away from our Solar System.
  • The star Kepler-87 has apparent magnitude of 15.0, with absolute magnitude of 4.5.
  • It is 1.1 times more massive and 1.8 times bigger compared with our Sun. The surface temperature is 5600 with its spectral types of G6
  • Number of Extrasolar Planets : 2
  • Name of the 1 Planet Kepler-87 b radius 1.204000 mass 1.020000 orbital distance 0.481000
  • Name of the 2 Planet Kepler-87 c radius 0.548000 mass 0.020000 orbital distance 0.676000
    (Illustration of the Kepler-87's Planetary System)



    The Star Kepler-87 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.236 AU ( 184971813.5 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.709 AU ( 255679385.2 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.604 AU ( 389598801.2 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 3.832 AU ( 573311703.3 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-87)



    Kopparapu's Recent Venus for Star Kepler-87 distance : 1.295 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star Kepler-87 distance : 1.640 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-87 distance : 1.584 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star Kepler-87 distance : 1.737 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star Kepler-87 distance : 2.911 AU
    Kopparapu's Outer Boundary for Early Mars for Star Kepler-87 distance : 3.070 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-87)



  • Original Kopparapu Recent Venus for Star Kepler-87 distance : 1.292 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-87 distance : 1.686 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-87 distance : 1.710 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-87 distance : 2.961 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-87 distance : 3.080 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-87)



    (Position in Stellar Map of star Kepler-87 )



    (Zoomed position in Stellar Map of star Kepler-87 (zoom level 3))

    (Synthetic Spectrum of star HD 231701*)
    *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