Imaginary Picture of Kepler-236 c

Display orbital revolution of Kepler-236 c around the hoststar Kepler-236
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Exoplanet Name : Kepler-236 c
Alternate Name : "2MASS J18552792+3953530 c, K00817.01, KIC 4725681 c, KOI-817 c, KOI-817.01, WISE J185527.93+395353.4 c"
Status : Confirmed
Radius (Rjup / Re): 0.1780 (Rjup) 1.9952 (Rearth)
Mass (Mjup / Me): 0.0158 (Mjup) 5.0153 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.1320 (AU) 0.1320 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0656
Orbital Period(Observed/Estimated) 23.97 (Days Obs.) 23.41 (Days Est.)
Surface Gravity (G Earth) 1.2599
Star Radiation at Atmospheric Boundary: 5213.3 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 379.2 (K)
Blackbody T 0.3(K) 356.2 (K)
Blackbody T 0.7(K) 288.2 (K)
Tidally Locked Blackbody T 0.1(K) 451.0 (K)
Tidally Locked Blackbody T 0.3(K) 423.5 (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-236
Alternate Name : "2MASS J18552792+3953530, KIC 4725681, KOI-817, WISE J185527.93+395353.4"
Star Distance(LY) : 941.6
Stellar Radius(Rsun) : 0.6 (Rsun Measured)
Stellar Mass(Msun) : 0.6 (Msun Measured) 0.5 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 3747 (K)
Spectral type : M1 V
UV portion[%]: 0.4
Visible portion[%]: 18.9
IR portion[%]: 80.7
Metalicity : 0.1
Absolute Magnitude: 5.9
Apparent Magnitude: 13.2
Right Ascension(RA) 283.8664
Declination (DEC) 39.8981
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors 0
Discovery Paper - Title
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Kepler-236+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-236%20c/
Kepler-236 c
Kepler-236 c

  • Kepler-236 c is an exoplanet orbiting the star Kepler-236, located about 941.6 light-years (288.7 pc) away from Solar System. Its discovery was publicly announced on 2014.
  • The host star Kepler-236 has apparent magnitude of 13.2, 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 3747 with its spectral types of M1 V
  • In this planetary system, the extrasolar planet Kepler-236 c orbits around the star Kepler-236 every 24.0 days with its orbital distance of 0.13 AU ( 19746918.9 km)
  • (Projected orbit of Kepler-236 c around its host star Kepler-236)


  • The Star Kepler-236 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.186 AU ( 27892405.7 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.258 AU ( 38554593.8 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.393 AU ( 58748668.8 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.578 AU ( 86451239.8 km)
  • Radiation at Planetary Boundary of Kepler-236 c : 5213.30 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-236)



  • Kopparapu Recent Venus for Star Kepler-236 distance : 0.210 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-236 distance : 0.266 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-236 distance : 0.257 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-236 distance : 0.282 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-236 distance : 0.511 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-236 distance : 0.539 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-236)



  • Original Kopparapu Recent Venus for Star Kepler-236 distance : 0.208 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-236 distance : 0.275 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-236 distance : 0.275 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-236 distance : 0.519 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-236 distance : 0.539 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-236)



    (Position in Stellar Map of star Kepler-236 and its Exoplanet Kepler-236 c)



    (Zoomed position in Stellar Map of star Kepler-236 and its Exoplanet Kepler-236 c (zoom level 3))

    (Synthetic Spectrum of star Kepler-236*)
    *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