KELT-20

Display orbital revolution around the star KELT-20
Imaginary Picture of Star KELT-20
Star Name : KELT-20
Alternate Name : "SAO 68614, 2MASS J19383872+3113091"
Star Distance (LY/pc): 0.0000 (LY) 0.0000 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 1.5610 (Rsun, estimated)
Stellar Mass (Msun): 2.0000 (Msun/observed) 2.0000 (Msun/estimated)
Spectral type : A2V
Metalicity : -0.2900
Absolute Magnitude : 25.00
Apparent Magnitude : 7.58
Right Ascension(RA) : 294.66140
Declination(DEC) : 31.21923
  • The star KELT-20 has apparent magnitude of 7.6, with absolute magnitude of 25.0.
  • It is 2.0 times more massive and 1.6 times bigger compared with our Sun. The surface temperature is 8981 with its spectral types of A2V
  • Number of Extrasolar Planets : 1
  • Name of the 1 Planet KELT-20 b radius 1.830000 mass 3.518000 orbital distance 0.054200
    (Illustration of the KELT-20's Planetary System)



    The Star KELT-20 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 2.728 AU ( 408047205.8 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 3.770 AU ( 564027873.9 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 5.745 AU ( 859453660.8 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 8.454 AU ( 1264723712.1 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star KELT-20)



    Kopparapu's Recent Venus for Star KELT-20 distance : 2.692 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star KELT-20 distance : 3.411 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star KELT-20 distance : 3.295 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star KELT-20 distance : 3.566 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star KELT-20 distance : 5.909 AU
    Kopparapu's Outer Boundary for Early Mars for Star KELT-20 distance : 6.229 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star KELT-20)



  • Original Kopparapu Recent Venus for Star KELT-20 distance : 2.741 AU
  • Original Kopparapu Runaway Greenhouse for Star KELT-20 distance : 3.469 AU
  • Original Kopparapu Moist Greenhouse for Star KELT-20 distance : 3.626 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star KELT-20 distance : 5.999 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star KELT-20 distance : 6.238 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star KELT-20)



    (Position in Stellar Map of star KELT-20 )



    (Zoomed position in Stellar Map of star KELT-20 (zoom level 3))

    (Synthetic Spectrum of star HD 158038*)
    *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