K2-189

Display orbital revolution around the star K2-189
Imaginary Picture of Star K2-189
Star Name : K2-189
Alternate Name : "2MASS J13342910-1502105, EPIC 212394689, TYC 6121-11-1, WISE J133429.13-150211.2"
Star Distance (LY/pc): 795.5923 (LY) 243.9300 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 0.8700 (Rsun, estimated)
Stellar Mass (Msun): 0.9400 (Msun/observed) 0.9400 (Msun/estimated)
Spectral type : G7
Metalicity : 0.0000
Absolute Magnitude : 4.10
Apparent Magnitude : 11.04
Right Ascension(RA) : 203.62129
Declination(DEC) : -15.03636
  • This is the K2-189 . The star K2-189 islocated about 795.6 light-years (243.9 pc) away from our Solar System.
  • The star K2-189 has apparent magnitude of 11.0, 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 5519 with its spectral types of G7
  • Number of Extrasolar Planets : 2
  • Name of the 1 Planet K2-189 b radius 0.136000 mass 0.014205 orbital distance 0.036100
  • Name of the 2 Planet K2-189 c radius 0.223000 mass 0.019453 orbital distance 0.068000
    (Illustration of the K2-189's Planetary System)



    The Star K2-189 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.574 AU ( 85881209.7 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.794 AU ( 118710275.3 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.209 AU ( 180888189.0 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.779 AU ( 266184894.3 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star K2-189)



    Kopparapu's Recent Venus for Star K2-189 distance : 0.604 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star K2-189 distance : 0.765 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star K2-189 distance : 0.739 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star K2-189 distance : 0.810 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star K2-189 distance : 1.361 AU
    Kopparapu's Outer Boundary for Early Mars for Star K2-189 distance : 1.436 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star K2-189)



  • Original Kopparapu Recent Venus for Star K2-189 distance : 0.602 AU
  • Original Kopparapu Runaway Greenhouse for Star K2-189 distance : 0.787 AU
  • Original Kopparapu Moist Greenhouse for Star K2-189 distance : 0.797 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star K2-189 distance : 1.385 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star K2-189 distance : 1.440 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star K2-189)



    (Position in Stellar Map of star K2-189 )



    (Zoomed position in Stellar Map of star K2-189 (zoom level 3))

    (Synthetic Spectrum of star Kepler-904*)
    *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