K2-256

Display orbital revolution around the star K2-256
Imaginary Picture of Star K2-256
Star Name : K2-256
Alternate Name : "2MASS J12245451-0203572, EPIC 228968232, WISE J122454.50-020357.5"
Star Distance (LY/pc): 2127.1506 (LY) 652.1881 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 0.7800 (Rsun, estimated)
Stellar Mass (Msun): 0.8400 (Msun/observed) 0.8400 (Msun/estimated)
Spectral type : K0
Metalicity : -0.1000
Absolute Magnitude : 4.28
Apparent Magnitude : 13.35
Right Ascension(RA) : 186.22716
Declination(DEC) : -2.06593
  • This is the K2-256 . The star K2-256 islocated about 2127.2 light-years (652.2 pc) away from our Solar System.
  • The star K2-256 has apparent magnitude of 13.3, with absolute magnitude of 4.3.
  • It is 0.8 times more massive and 0.8 times bigger compared with our Sun. The surface temperature is 5219 with its spectral types of K0
  • Number of Extrasolar Planets : 1
  • Name of the 1 Planet K2-256 b radius 0.235000 mass 0.020425 orbital distance 0.057800
    (Illustration of the K2-256's Planetary System)



    The Star K2-256 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.460 AU ( 68853704.1 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.636 AU ( 95173812.7 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.969 AU ( 145023828.6 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.427 AU ( 213408916.9 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star K2-256)



    Kopparapu's Recent Venus for Star K2-256 distance : 0.492 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star K2-256 distance : 0.624 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star K2-256 distance : 0.602 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star K2-256 distance : 0.660 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star K2-256 distance : 1.121 AU
    Kopparapu's Outer Boundary for Early Mars for Star K2-256 distance : 1.182 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star K2-256)



  • Original Kopparapu Recent Venus for Star K2-256 distance : 0.488 AU
  • Original Kopparapu Runaway Greenhouse for Star K2-256 distance : 0.642 AU
  • Original Kopparapu Moist Greenhouse for Star K2-256 distance : 0.646 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star K2-256 distance : 1.140 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star K2-256 distance : 1.185 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star K2-256)



    (Position in Stellar Map of star K2-256 )



    (Zoomed position in Stellar Map of star K2-256 (zoom level 3))

    (Synthetic Spectrum of star Kepler-946*)
    *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