TOI-197

Display orbital revolution around the star TOI-197
Imaginary Picture of Star TOI-197
Star Name : TOI-197
Alternate Name : HD 221416
Star Distance (LY/pc): 312.4698 (LY) 95.8038 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 2.9430 (Rsun, estimated)
Stellar Mass (Msun): 1.2120 (Msun/observed) 1.2120 (Msun/estimated)
Spectral type : K0IV/V
Metalicity : -0.0800
Absolute Magnitude : 3.24
Apparent Magnitude : 8.15
Right Ascension(RA) : 353.03364
Declination(DEC) : -21.80142
  • This is the TOI-197 . The star TOI-197 islocated about 312.5 light-years (95.8 pc) away from our Solar System.
  • The star TOI-197 has apparent magnitude of 8.2, with absolute magnitude of 3.2.
  • It is 1.2 times more massive and 2.9 times bigger compared with our Sun. The surface temperature is 5080 with its spectral types of K0IV/V
  • Number of Extrasolar Planets : 1
  • Name of the 1 Planet HD 221416 b radius 0.836000 mass 0.190400 orbital distance 0.122800
    (Illustration of the TOI-197's Planetary System)



    The Star TOI-197 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.645 AU ( 246136374.4 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 2.274 AU ( 340224792.5 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 3.465 AU ( 518427292.3 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 5.100 AU ( 762888471.4 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star TOI-197)



    Kopparapu's Recent Venus for Star TOI-197 distance : 1.773 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star TOI-197 distance : 2.245 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star TOI-197 distance : 2.168 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star TOI-197 distance : 2.378 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star TOI-197 distance : 4.056 AU
    Kopparapu's Outer Boundary for Early Mars for Star TOI-197 distance : 4.278 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star TOI-197)



  • Original Kopparapu Recent Venus for Star TOI-197 distance : 1.756 AU
  • Original Kopparapu Runaway Greenhouse for Star TOI-197 distance : 2.313 AU
  • Original Kopparapu Moist Greenhouse for Star TOI-197 distance : 2.323 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-197 distance : 4.124 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star TOI-197 distance : 4.289 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star TOI-197)



    (Position in Stellar Map of star TOI-197 )



    (Zoomed position in Stellar Map of star TOI-197 (zoom level 3))

    (Synthetic Spectrum of star HD 113337*)
    *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