K2-38

Display orbital revolution around the star K2-38
Imaginary Picture of Star K2-38
Star Name : K2-38
Alternate Name : "2MASS J16000805-2311213, EPIC 204221263, TYC 6779-268-1, WISE J160008.01-231121.6"
Star Distance (LY/pc): 621.5573 (LY) 190.5706 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 1.3800 (Rsun, estimated)
Stellar Mass (Msun): 2.2400 (Msun/observed) 2.2400 (Msun/estimated)
Spectral type : G2 V
Metalicity : 0.2800
Absolute Magnitude : 5.00
Apparent Magnitude : 11.40
Right Ascension(RA) : 240.03358
Declination(DEC) : -23.18929
  • This is the K2-38 . The star K2-38 islocated about 621.6 light-years (190.6 pc) away from our Solar System.
  • The star K2-38 has apparent magnitude of 11.4, with absolute magnitude of 5.0.
  • It is 2.2 times more massive and 1.4 times bigger compared with our Sun. The surface temperature is 5757 with its spectral types of G2 V
  • Number of Extrasolar Planets : 2
  • Name of the 1 Planet K2-38 b radius 0.170000 mass 0.060000 orbital distance 0.049940
  • Name of the 2 Planet K2-38 c radius 0.216000 mass 0.031150 orbital distance 0.096400
    (Illustration of the K2-38's Planetary System)



    The Star K2-38 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.991 AU ( 148227798.3 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.370 AU ( 204889553.8 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.087 AU ( 312206338.0 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 3.071 AU ( 459425303.2 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star K2-38)



    Kopparapu's Recent Venus for Star K2-38 distance : 1.028 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star K2-38 distance : 1.302 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star K2-38 distance : 1.258 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star K2-38 distance : 1.379 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star K2-38 distance : 2.301 AU
    Kopparapu's Outer Boundary for Early Mars for Star K2-38 distance : 2.427 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star K2-38)



  • Original Kopparapu Recent Venus for Star K2-38 distance : 1.029 AU
  • Original Kopparapu Runaway Greenhouse for Star K2-38 distance : 1.338 AU
  • Original Kopparapu Moist Greenhouse for Star K2-38 distance : 1.362 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star K2-38 distance : 2.341 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star K2-38 distance : 2.435 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star K2-38)



    (Position in Stellar Map of star K2-38 )



    (Zoomed position in Stellar Map of star K2-38 (zoom level 3))

    (Synthetic Spectrum of star Kepler-857*)
    *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