K2-9
Imaginary Picture of Star K2-9
Star Name : K2-9
Alternate Name : EPIC 201465501
Star Distance (LY/pc): 215.2630 (LY) 66.0000 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 0.2500 (Rsun, estimated)
Stellar Mass (Msun): 0.2400 (Msun/observed) 0.2400 (Msun/estimated)
Spectral type : M4
Metalicity : -0.4600
Absolute Magnitude : 17.90
Apparent Magnitude : 22.00
Right Ascension(RA) : 176.26447
Declination(DEC) : 0.10123
  • This is the K2-9 . The star K2-9 islocated about 215.3 light-years (66.0 pc) away from our Solar System.
  • The star K2-9 has apparent magnitude of 22.0, with absolute magnitude of 17.9.
  • It is 0.2 times more massive and 0.2 times bigger compared with our Sun. The surface temperature is 3468 with its spectral types of M4
  • Number of Extrasolar Planets : 1
  • Name of the 1 Planet K2-9 b radius 0.143000 mass 0.012869 orbital distance 0.084800
    (Illustration of the K2-9's Planetary System)



    The Star K2-9 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.065 AU ( 9744426.8 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.090 AU ( 13469344.4 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.137 AU ( 20524300.1 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.202 AU ( 30202406.7 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star K2-9)



    Kopparapu's Recent Venus for Star K2-9 distance : 0.074 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star K2-9 distance : 0.093 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star K2-9 distance : 0.090 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star K2-9 distance : 0.098 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star K2-9 distance : 0.182 AU
    Kopparapu's Outer Boundary for Early Mars for Star K2-9 distance : 0.192 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star K2-9)



  • Original Kopparapu Recent Venus for Star K2-9 distance : 0.073 AU
  • Original Kopparapu Runaway Greenhouse for Star K2-9 distance : 0.096 AU
  • Original Kopparapu Moist Greenhouse for Star K2-9 distance : 0.097 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star K2-9 distance : 0.184 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star K2-9 distance : 0.192 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star K2-9)



    (Position in Stellar Map of star K2-9 )



    (Zoomed position in Stellar Map of star K2-9 (zoom level 3))