K2-17

Display orbital revolution around the star K2-17
Imaginary Picture of Star K2-17
Star Name : K2-17
Alternate Name : "EPIC 201855371, 2MASS J11531915+0624439, WISE J115319.12+062444.2"
Star Distance (LY/pc): 403.0349 (LY) 123.5712 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 0.6600 (Rsun, estimated)
Stellar Mass (Msun): 0.7100 (Msun/observed) 0.7100 (Msun/estimated)
Spectral type : K7
Metalicity : 0.1500
Absolute Magnitude : 5.62
Apparent Magnitude : 11.08
Right Ascension(RA) : 178.32977
Declination(DEC) : 6.41226
  • This is the K2-17 . The star K2-17 islocated about 403.0 light-years (123.6 pc) away from our Solar System.
  • The star K2-17 has apparent magnitude of 11.1, with absolute magnitude of 5.6.
  • It is 0.7 times more massive and 0.7 times bigger compared with our Sun. The surface temperature is 4320 with its spectral types of K7
  • Number of Extrasolar Planets : 1
  • Name of the 1 Planet K2-17 b radius 0.199000 mass 0.017499 orbital distance 0.119000
    (Illustration of the K2-17's Planetary System)



    The Star K2-17 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.267 AU ( 39918070.6 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.369 AU ( 55177205.4 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.562 AU ( 84077850.3 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.827 AU ( 123724239.9 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star K2-17)



    Kopparapu's Recent Venus for Star K2-17 distance : 0.296 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star K2-17 distance : 0.375 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star K2-17 distance : 0.362 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star K2-17 distance : 0.397 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star K2-17 distance : 0.701 AU
    Kopparapu's Outer Boundary for Early Mars for Star K2-17 distance : 0.740 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star K2-17)



  • Original Kopparapu Recent Venus for Star K2-17 distance : 0.293 AU
  • Original Kopparapu Runaway Greenhouse for Star K2-17 distance : 0.388 AU
  • Original Kopparapu Moist Greenhouse for Star K2-17 distance : 0.387 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star K2-17 distance : 0.712 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star K2-17 distance : 0.741 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star K2-17)



    (Position in Stellar Map of star K2-17 )



    (Zoomed position in Stellar Map of star K2-17 (zoom level 3))

    (Synthetic Spectrum of star Kepler-812*)
    *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