HAT-P-20

Display orbital revolution around the star HAT-P-20
Imaginary Picture of Star HAT-P-20
Star Name : HAT-P-20
Alternate Name :
Star Distance (LY/pc): 228.3092 (LY) 70.0000 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 0.6940 (Rsun, estimated)
Stellar Mass (Msun): 0.7560 (Msun/observed) 0.7560 (Msun/estimated)
Spectral type : K7
Metalicity : 0.3500
Absolute Magnitude : 7.11
Apparent Magnitude : 11.34
Right Ascension(RA) : 111.91646
Declination(DEC) : 24.33639
  • This is the HAT-P-20 . The star HAT-P-20 islocated about 228.3 light-years (70.0 pc) away from our Solar System.
  • The star HAT-P-20 has apparent magnitude of 11.3, with absolute magnitude of 7.1.
  • It is 0.8 times more massive and 0.7 times bigger compared with our Sun. The surface temperature is 4595 with its spectral types of K7
  • Number of Extrasolar Planets : 1
  • Name of the 1 Planet HAT-P-20 b radius 0.867000 mass 7.246000 orbital distance 0.036100
    (Illustration of the HAT-P-20's Planetary System)



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

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.317 AU ( 47488517.8 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.439 AU ( 65641541.8 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.669 AU ( 100023183.2 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.984 AU ( 147188495.9 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HAT-P-20)



    Kopparapu's Recent Venus for Star HAT-P-20 distance : 0.349 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star HAT-P-20 distance : 0.442 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star HAT-P-20 distance : 0.427 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star HAT-P-20 distance : 0.468 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star HAT-P-20 distance : 0.816 AU
    Kopparapu's Outer Boundary for Early Mars for Star HAT-P-20 distance : 0.860 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HAT-P-20)



  • Original Kopparapu Recent Venus for Star HAT-P-20 distance : 0.345 AU
  • Original Kopparapu Runaway Greenhouse for Star HAT-P-20 distance : 0.456 AU
  • Original Kopparapu Moist Greenhouse for Star HAT-P-20 distance : 0.456 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HAT-P-20 distance : 0.829 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HAT-P-20 distance : 0.862 AU

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



    (Position in Stellar Map of star HAT-P-20 )



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

    (Synthetic Spectrum of star GJ 887*)
    *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