Imaginary Picture of Kepler-436 c

Display orbital revolution of Kepler-436 c around the hoststar Kepler-436
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Exoplanet Name : Kepler-436 c
Alternate Name : "2MASS J20065298+4424434 c, K02529.01, KIC 8463346 c, KOI-2529 c, KOI-2529.01, WISE J200652.98+442443.5 c"
Radius (Rjup / Re): 0.2080 (Rjup) 2.3315 (Rearth)
Mass (Mjup / Me): 0.0182 (Mjup) 5.7971 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.1156 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0460
Orbital Period(Observed/Estimated) 16.80 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 1.0665
Star Radiation at Atmospheric Boundary: 19902.5 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 530.1 (K)
Blackbody T 0.3(K) 497.8 (K)
Blackbody T 0.7(K) 402.8 (K)
Tidally Locked Blackbody T 0.1(K) 630.4 (K)
Tidally Locked Blackbody T 0.3(K) 592.0 (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-436
Alternate Name : "2MASS J20065298+4424434, KIC 8463346, KOI-2529, WISE J200652.98+442443.5"
Star Distance(LY) : 1921.8
Stellar Radius(Rsun) : 0.7 (Rsun Measured)
Stellar Mass(Msun) : 0.7 (Msun Measured) 0.7 (Msun Estimated)
Star Age : 3.0 (GY)
Temperature : 4734 (K)
Spectral type : K4
UV portion[%]: 2.0
Visible portion[%]: 33.5
IR portion[%]: 64.5
Metalicity : 0.0
Absolute Magnitude: 7.4
Apparent Magnitude: 16.3
Right Ascension(RA) 301.7208
Declination (DEC) 44.4121
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors 0
Discovery Paper - Title 0
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Kepler-436+&submit=SIMBAD+search
Open Exoplanet Database Link 0
Kepler-436 c
Kepler-436 c

  • Kepler-436 c is an exoplanet orbiting the star Kepler-436, located about 1921.8 light-years (589.2 pc) away from Solar System. Its discovery was publicly announced on 2016.
  • The host star Kepler-436 has apparent magnitude of 16.3, with absolute magnitude of 7.4.
  • It is 0.7 times more massive and 0.7 times bigger compared with our Sun. The surface temperature is 4734 with its spectral types of K4
  • In this planetary system, the extrasolar planet Kepler-436 c orbits around the star Kepler-436 every 16.8 days with its orbital distance of 0.12 AU ( 17290056.9 km)
  • (Projected orbit of Kepler-436 c around its host star Kepler-436)


  • The Star Kepler-436 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.319 AU ( 47717753.5 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.441 AU ( 65958405.5 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.672 AU ( 100506013.3 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.989 AU ( 147899001.5 km)
  • Radiation at Planetary Boundary of Kepler-436 c : 19902.45 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-436)



  • Kopparapu Recent Venus for Star Kepler-436 distance : 0.349 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-436 distance : 0.442 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-436 distance : 0.427 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-436 distance : 0.469 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-436 distance : 0.810 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-436 distance : 0.855 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-436)



  • Original Kopparapu Recent Venus for Star Kepler-436 distance : 0.345 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-436 distance : 0.456 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-436 distance : 0.456 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-436 distance : 0.824 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-436 distance : 0.856 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-436)



    (Position in Stellar Map of star Kepler-436 and its Exoplanet Kepler-436 c)



    (Zoomed position in Stellar Map of star Kepler-436 and its Exoplanet Kepler-436 c (zoom level 3))

    (Synthetic Spectrum of star Kepler-436*)
    *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