K2-172

Display orbital revolution around the star K2-172
Imaginary Picture of Star K2-172
Star Name : K2-172
Alternate Name : "2MASS J22211401-1233247, EPIC 206082454, WISE J222113.96-123325.0"
Star Distance (LY/pc): 811.1719 (LY) 248.7067 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 0.8700 (Rsun, estimated)
Stellar Mass (Msun): 0.9300 (Msun/observed) 0.9300 (Msun/estimated)
Spectral type : G6
Metalicity : -0.0600
Absolute Magnitude : 4.12
Apparent Magnitude : 11.10
Right Ascension(RA) : 335.30838
Declination(DEC) : -12.55690
  • This is the K2-172 . The star K2-172 islocated about 811.2 light-years (248.7 pc) away from our Solar System.
  • The star K2-172 has apparent magnitude of 11.1, with absolute magnitude of 4.1.
  • It is 0.9 times more massive and 0.9 times bigger compared with our Sun. The surface temperature is 5569 with its spectral types of G6
  • Number of Extrasolar Planets : 2
  • Name of the 1 Planet K2-172 b radius 0.149000 mass 0.013370 orbital distance 0.000000
  • Name of the 2 Planet K2-172 c radius 0.286000 mass 0.024518 orbital distance 0.000000
    (Illustration of the K2-172's Planetary System)



    The Star K2-172 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.585 AU ( 87444359.5 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.808 AU ( 120870956.7 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.231 AU ( 184180589.4 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.812 AU ( 271029805.7 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star K2-172)



    Kopparapu's Recent Venus for Star K2-172 distance : 0.613 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star K2-172 distance : 0.777 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star K2-172 distance : 0.750 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star K2-172 distance : 0.823 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star K2-172 distance : 1.380 AU
    Kopparapu's Outer Boundary for Early Mars for Star K2-172 distance : 1.455 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star K2-172)



  • Original Kopparapu Recent Venus for Star K2-172 distance : 0.612 AU
  • Original Kopparapu Runaway Greenhouse for Star K2-172 distance : 0.799 AU
  • Original Kopparapu Moist Greenhouse for Star K2-172 distance : 0.809 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star K2-172 distance : 1.404 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star K2-172 distance : 1.460 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star K2-172)



    (Position in Stellar Map of star K2-172 )



    (Zoomed position in Stellar Map of star K2-172 (zoom level 3))

    (Synthetic Spectrum of star Kepler-845*)
    *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