K2-28
Imaginary Picture of Star K2-28
Star Name : K2-28
Alternate Name : EPIC 20631837
Star Distance (LY/pc): 172.8627 (LY) 53.0000 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 0.2880 (Rsun, estimated)
Stellar Mass (Msun): 0.2570 (Msun/observed) 0.2570 (Msun/estimated)
Spectral type : M4
Metalicity : 0.2600
Absolute Magnitude : 7.41
Apparent Magnitude : 11.03
Right Ascension(RA) : 335.62450
Declination(DEC) : -7.95543
  • This is the K2-28 . The star K2-28 islocated about 172.9 light-years (53.0 pc) away from our Solar System.
  • The star K2-28 has apparent magnitude of 11.0, with absolute magnitude of 7.4.
  • It is 0.3 times more massive and 0.3 times bigger compared with our Sun. The surface temperature is 3214 with its spectral types of M4
  • Number of Extrasolar Planets : 1
  • Name of the 1 Planet K2-28 b radius 0.207000 mass 0.018152 orbital distance 0.021400
    (Illustration of the K2-28's Planetary System)



    The Star K2-28 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.064 AU ( 9641449.8 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.089 AU ( 13327003.3 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.136 AU ( 20307403.7 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.200 AU ( 29883234.2 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star K2-28)



    Kopparapu's Recent Venus for Star K2-28 distance : 0.073 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star K2-28 distance : 0.092 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star K2-28 distance : 0.089 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star K2-28 distance : 0.097 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star K2-28 distance : 0.182 AU
    Kopparapu's Outer Boundary for Early Mars for Star K2-28 distance : 0.192 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star K2-28)



  • Original Kopparapu Recent Venus for Star K2-28 distance : 0.073 AU
  • Original Kopparapu Runaway Greenhouse for Star K2-28 distance : 0.096 AU
  • Original Kopparapu Moist Greenhouse for Star K2-28 distance : 0.096 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star K2-28 distance : 0.185 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star K2-28 distance : 0.193 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star K2-28)



    (Position in Stellar Map of star K2-28 )



    (Zoomed position in Stellar Map of star K2-28 (zoom level 3))