Kepler-77

Display orbital revolution around the star Kepler-77
Imaginary Picture of Star Kepler-77
Star Name : Kepler-77
Alternate Name : "2MASS J19182590+4420435, KIC 8359498, KOI-127, WISE J191825.91+442043.5"
Star Distance (LY/pc): 1859.0892 (LY) 570.0000 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 0.9900 (Rsun, estimated)
Stellar Mass (Msun): 0.9500 (Msun/observed) 0.9500 (Msun/estimated)
Spectral type : G5 V
Metalicity : 0.2000
Absolute Magnitude : 6.22
Apparent Magnitude : 15.00
Right Ascension(RA) : 289.60796
Declination(DEC) : 44.34542
  • This is the Kepler-77 . The star Kepler-77 islocated about 1859.1 light-years (570.0 pc) away from our Solar System.
  • The star Kepler-77 has apparent magnitude of 15.0, with absolute magnitude of 6.2.
  • It is 0.9 times more massive and 1.0 times bigger compared with our Sun. The surface temperature is 5520 with its spectral types of G5 V
  • Number of Extrasolar Planets : 1
  • Name of the 1 Planet Kepler-77 b radius 0.960000 mass 0.430000 orbital distance 0.045010
    (Illustration of the Kepler-77's Planetary System)



    The Star Kepler-77 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.654 AU ( 97762311.7 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.903 AU ( 135133063.2 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.376 AU ( 205912883.4 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.025 AU ( 303009828.3 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-77)



    Kopparapu's Recent Venus for Star Kepler-77 distance : 0.688 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star Kepler-77 distance : 0.871 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-77 distance : 0.841 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star Kepler-77 distance : 0.922 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star Kepler-77 distance : 1.549 AU
    Kopparapu's Outer Boundary for Early Mars for Star Kepler-77 distance : 1.634 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-77)



  • Original Kopparapu Recent Venus for Star Kepler-77 distance : 0.685 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-77 distance : 0.896 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-77 distance : 0.907 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-77 distance : 1.576 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-77 distance : 1.639 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-77)



    (Position in Stellar Map of star Kepler-77 )



    (Zoomed position in Stellar Map of star Kepler-77 (zoom level 3))

    (Synthetic Spectrum of star HD 221287*)
    *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