HATS-4

Display orbital revolution around the star HATS-4
Imaginary Picture of Star HATS-4
Star Name : HATS-4
Alternate Name :
Star Distance (LY/pc): 1369.8552 (LY) 420.0000 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 0.9250 (Rsun, estimated)
Stellar Mass (Msun): 1.0010 (Msun/observed) 1.0010 (Msun/estimated)
Spectral type : G7
Metalicity : 0.4300
Absolute Magnitude : 5.38
Apparent Magnitude : 13.50
Right Ascension(RA) : 94.11208
Declination(DEC) : -21.45306
  • This is the HATS-4 . The star HATS-4 islocated about 1369.9 light-years (420.0 pc) away from our Solar System.
  • The star HATS-4 has apparent magnitude of 13.5, with absolute magnitude of 5.4.
  • It is 1.0 times more massive and 0.9 times bigger compared with our Sun. The surface temperature is 5403 with its spectral types of G7
  • Number of Extrasolar Planets : 1
  • Name of the 1 Planet HATS-4 b radius 1.020000 mass 1.323000 orbital distance 0.036200
    (Illustration of the HATS-4's Planetary System)



    The Star HATS-4 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.585 AU ( 87512437.5 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.809 AU ( 120965058.3 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.232 AU ( 184323979.3 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.813 AU ( 271240810.3 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HATS-4)



    Kopparapu's Recent Venus for Star HATS-4 distance : 0.620 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star HATS-4 distance : 0.785 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star HATS-4 distance : 0.758 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star HATS-4 distance : 0.831 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star HATS-4 distance : 1.401 AU
    Kopparapu's Outer Boundary for Early Mars for Star HATS-4 distance : 1.478 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HATS-4)



  • Original Kopparapu Recent Venus for Star HATS-4 distance : 0.616 AU
  • Original Kopparapu Runaway Greenhouse for Star HATS-4 distance : 0.807 AU
  • Original Kopparapu Moist Greenhouse for Star HATS-4 distance : 0.816 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HATS-4 distance : 1.425 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HATS-4 distance : 1.482 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HATS-4)



    (Position in Stellar Map of star HATS-4 )



    (Zoomed position in Stellar Map of star HATS-4 (zoom level 3))

    (Synthetic Spectrum of star Gl 378*)
    *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