Kepler-721

Display orbital revolution around the star Kepler-721
Imaginary Picture of Star Kepler-721
Star Name : Kepler-721
Alternate Name : "2MASS J18574332+4428499, KIC 8414716, KOI-910, WISE J185743.32+442849.5"
Star Distance (LY/pc): 2765.8029 (LY) 848.0000 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 0.7800 (Rsun, estimated)
Stellar Mass (Msun): 0.8200 (Msun/observed) 0.8200 (Msun/estimated)
Spectral type : K1
Metalicity : -0.0100
Absolute Magnitude : 4.55
Apparent Magnitude : 14.19
Right Ascension(RA) : 284.43051
Declination(DEC) : 44.48053
  • This is the Kepler-721 . The star Kepler-721 islocated about 2765.8 light-years (848.0 pc) away from our Solar System.
  • The star Kepler-721 has apparent magnitude of 14.2, with absolute magnitude of 4.5.
  • It is 0.8 times more massive and 0.8 times bigger compared with our Sun. The surface temperature is 5075 with its spectral types of K1
  • Number of Extrasolar Planets : 1
  • Name of the 1 Planet Kepler-721 b radius 0.236000 mass 0.020506 orbital distance 0.000000
    (Illustration of the Kepler-721's Planetary System)



    The Star Kepler-721 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.435 AU ( 65106568.8 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.602 AU ( 89994292.5 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.917 AU ( 137131386.1 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.349 AU ( 201794842.0 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-721)



    Kopparapu's Recent Venus for Star Kepler-721 distance : 0.469 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star Kepler-721 distance : 0.594 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-721 distance : 0.574 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star Kepler-721 distance : 0.629 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star Kepler-721 distance : 1.073 AU
    Kopparapu's Outer Boundary for Early Mars for Star Kepler-721 distance : 1.132 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-721)



  • Original Kopparapu Recent Venus for Star Kepler-721 distance : 0.465 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-721 distance : 0.612 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-721 distance : 0.615 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-721 distance : 1.091 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-721 distance : 1.135 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-721)



    (Position in Stellar Map of star Kepler-721 )



    (Zoomed position in Stellar Map of star Kepler-721 (zoom level 3))

    (Synthetic Spectrum of star Kepler-139*)
    *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