Kepler-691

Display orbital revolution around the star Kepler-691
Imaginary Picture of Star Kepler-691
Star Name : Kepler-691
Alternate Name : "2MASS J19151488+4002002, KIC 4913852, KOI-818, WISE J191514.83+400159.8"
Star Distance (LY/pc): 779.5128 (LY) 239.0000 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 0.5000 (Rsun, estimated)
Stellar Mass (Msun): 0.5300 (Msun/observed) 0.5300 (Msun/estimated)
Spectral type : M2
Metalicity : 0.0400
Absolute Magnitude : 6.51
Apparent Magnitude : 13.40
Right Ascension(RA) : 288.81200
Declination(DEC) : 40.03340
  • This is the Kepler-691 . The star Kepler-691 islocated about 779.5 light-years (239.0 pc) away from our Solar System.
  • The star Kepler-691 has apparent magnitude of 13.4, with absolute magnitude of 6.5.
  • It is 0.5 times more massive and 0.5 times bigger compared with our Sun. The surface temperature is 3715 with its spectral types of M2
  • Number of Extrasolar Planets : 1
  • Name of the 1 Planet Kepler-691 b radius 0.186000 mass 0.016433 orbital distance 0.000000
    (Illustration of the Kepler-691's Planetary System)



    The Star Kepler-691 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.149 AU ( 22363807.9 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.207 AU ( 30912626.9 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.315 AU ( 47104002.4 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.463 AU ( 69315603.0 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-691)



    Kopparapu's Recent Venus for Star Kepler-691 distance : 0.168 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star Kepler-691 distance : 0.213 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-691 distance : 0.206 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star Kepler-691 distance : 0.225 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star Kepler-691 distance : 0.410 AU
    Kopparapu's Outer Boundary for Early Mars for Star Kepler-691 distance : 0.433 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-691)



  • Original Kopparapu Recent Venus for Star Kepler-691 distance : 0.167 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-691 distance : 0.221 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-691 distance : 0.221 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-691 distance : 0.417 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-691 distance : 0.433 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-691)



    (Position in Stellar Map of star Kepler-691 )



    (Zoomed position in Stellar Map of star Kepler-691 (zoom level 3))

    (Synthetic Spectrum of star Kepler-128*)
    *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