K2-90

Display orbital revolution around the star K2-90
Imaginary Picture of Star K2-90
Star Name : K2-90
Alternate Name : "2MASS J03563656+2228216, EPIC 210968143, WISE J035636.62+222821.0"
Star Distance (LY/pc): 439.9844 (LY) 134.9000 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 0.6200 (Rsun, estimated)
Stellar Mass (Msun): 0.6300 (Msun/observed) 0.6300 (Msun/estimated)
Spectral type : K5
Metalicity : -0.2250
Absolute Magnitude : 5.52
Apparent Magnitude : 11.17
Right Ascension(RA) : 59.15241
Declination(DEC) : 22.47263
  • This is the K2-90 . The star K2-90 islocated about 440.0 light-years (134.9 pc) away from our Solar System.
  • The star K2-90 has apparent magnitude of 11.2, with absolute magnitude of 5.5.
  • It is 0.6 times more massive and 0.6 times bigger compared with our Sun. The surface temperature is 4484 with its spectral types of K5
  • Number of Extrasolar Planets : 2
  • Name of the 1 Planet K2-90 b radius 0.232000 mass 0.028000 orbital distance 0.096000
  • Name of the 2 Planet K2-90 c radius 0.116000 mass 0.007939 orbital distance 0.035000
    (Illustration of the K2-90's Planetary System)



    The Star K2-90 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.270 AU ( 40399966.9 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.373 AU ( 55843312.1 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.569 AU ( 85092849.5 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.837 AU ( 125217855.8 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star K2-90)



    Kopparapu's Recent Venus for Star K2-90 distance : 0.298 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star K2-90 distance : 0.378 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star K2-90 distance : 0.365 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star K2-90 distance : 0.400 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star K2-90 distance : 0.700 AU
    Kopparapu's Outer Boundary for Early Mars for Star K2-90 distance : 0.739 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star K2-90)



  • Original Kopparapu Recent Venus for Star K2-90 distance : 0.294 AU
  • Original Kopparapu Runaway Greenhouse for Star K2-90 distance : 0.390 AU
  • Original Kopparapu Moist Greenhouse for Star K2-90 distance : 0.390 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star K2-90 distance : 0.712 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star K2-90 distance : 0.740 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star K2-90)



    (Position in Stellar Map of star K2-90 )



    (Zoomed position in Stellar Map of star K2-90 (zoom level 3))

    (Synthetic Spectrum of star Kepler-823*)
    *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