Imaginary Picture of Kepler-238 c
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Exoplanet Name : Kepler-238 c
Alternate Name :
Radius (Rjup / Re): 0.2130 (Rjup) 2.3875 (Rearth)
Mass (Mjup / Me): 0.0186 (Mjup) 5.9266 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0690 (AU) 0.0690 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0169
Orbital Period(Observed/Estimated) 6.16 (Days Obs.) 5.54 (Days Est.)
Star Radiation at Atmospheric Boundary: 207243.7 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 952.3 (K)
Blackbody T 0.3(K) 894.3 (K)
Blackbody T 0.7(K) 723.6 (K)
Tidally Locked Blackbody T 0.1(K) 1132.5 (K)
Tidally Locked Blackbody T 0.3(K) 1063.5 (K)
Size Class: sub-Neptune-size
Mass Class:
Detection Type : Primary Transit
Mass Detection :
Radius Detection :
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : Kepler-238
Alternate Name :
Star Distance(LY) : 0.0
Stellar Radius(Rsun) : 0.9 (Rsun Measured)
Stellar Mass(Msun) : 1.4 (Msun Measured) 1.2 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 5614 (K)
Spectral type : G6
Metalicity : 0.1
Absolute Magnitude: 25.0
Apparent Magnitude: 22.0
Right Ascension(RA) 287.8958
Declination (DEC) 40.6378
Hubble Space Telescope Guide Star Catalog (GSC) ID 0
Discovered by
Discovery Paper - Authors 0
Discovery Paper - Title
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK 0
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-238%20c/
Kepler-238 c
Kepler-238 c

  • Kepler-238 c is an exoplanet orbiting the star Kepler-238. Its discovery was publicly announced on 2014.
  • The host star Kepler-238 has apparent magnitude of 22.0, with absolute magnitude of 25.0.
  • It is 1.4 times more massive and 0.9 times bigger compared with our Sun. The surface temperature is 5614 with its spectral types of G6
  • In this planetary system, the extrasolar planet Kepler-238 c orbits around the star Kepler-238 every 6.2 days with its orbital distance of 0.07 AU ( 10322253.1 km)
  • (Projected orbit of Kepler-238 c around its host star Kepler-238)


  • The Star Kepler-238 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.614 AU ( 91927497.7 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.849 AU ( 127067825.3 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.294 AU ( 193623245.7 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.905 AU ( 284925088.2 km)
  • Radiation at Planetary Boundary of Kepler-238 c : 207243.67 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-238)



  • Kopparapu Recent Venus for Star Kepler-238 distance : 0.643 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-238 distance : 0.814 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-238 distance : 0.787 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-238 distance : 0.863 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-238 distance : 1.445 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-238 distance : 1.524 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-238)



  • Original Kopparapu Recent Venus for Star Kepler-238 distance : 0.642 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-238 distance : 0.837 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-238 distance : 0.849 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-238 distance : 1.470 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-238 distance : 1.529 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-238)



    (Position in Stellar Map of star Kepler-238 and its Exoplanet Kepler-238 c)



    (Zoomed position in Stellar Map of star Kepler-238 and its Exoplanet Kepler-238 c (zoom level 3))