Kepler-138
Imaginary Picture of Star Kepler-138
Star Name : Kepler-138
Alternate Name : KOI-314
Star Distance (LY/pc): 242.3339 (LY) 74.3000 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 0.5820 (Rsun, estimated)
Stellar Mass (Msun): 0.5510 (Msun/observed) 0.5510 (Msun/estimated)
Spectral type : M1 V
Metalicity : -0.1270
Absolute Magnitude : 5.94
Apparent Magnitude : 10.29
Right Ascension(RA) : 290.38155
Declination(DEC) : 43.29297
  • This is the Kepler-138 . The star Kepler-138 islocated about 242.3 light-years (74.3 pc) away from our Solar System.
  • The star Kepler-138 has apparent magnitude of 10.3, with absolute magnitude of 5.9.
  • It is 0.6 times more massive and 0.6 times bigger compared with our Sun. The surface temperature is 3933 with its spectral types of M1 V
  • Number of Extrasolar Planets : 3
  • Name of the 1 Planet Kepler-138 b radius 0.062540 mass 0.000588 orbital distance 0.074600
  • Name of the 2 Planet Kepler-138 c radius 0.149000 mass 0.016400 orbital distance 0.000000
  • Name of the 3 Planet Kepler-138 d radius 0.149900 mass 0.003680 orbital distance 0.000000
    (Illustration of the Kepler-138's Planetary System)



    The Star Kepler-138 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.195 AU ( 29176217.6 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.270 AU ( 40329157.4 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.411 AU ( 61452711.1 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.604 AU ( 90430356.5 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-138)



    Kopparapu's Recent Venus for Star Kepler-138 distance : 0.219 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star Kepler-138 distance : 0.277 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-138 distance : 0.267 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star Kepler-138 distance : 0.293 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star Kepler-138 distance : 0.527 AU
    Kopparapu's Outer Boundary for Early Mars for Star Kepler-138 distance : 0.556 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-138)



  • Original Kopparapu Recent Venus for Star Kepler-138 distance : 0.216 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-138 distance : 0.286 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-138 distance : 0.286 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-138 distance : 0.536 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-138 distance : 0.557 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-138)



    (Position in Stellar Map of star Kepler-138 )



    (Zoomed position in Stellar Map of star Kepler-138 (zoom level 3))