Imaginary Picture of Kepler-436 b

Display orbital revolution of Kepler-436 b around the hoststar Kepler-436
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Exoplanet Name : Kepler-436 b
Alternate Name : "2MASS J20065298+4424434 b, K02529.02, KIC 8463346 b, KOI-2529 b, KOI-2529.02, WISE J200652.98+442443.5 b"
Status : Confirmed
Radius (Rjup / Re): 0.2400 (Rjup) 2.6902 (Rearth)
Mass (Mjup / Me): 0.0208 (Mjup) 6.6223 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.3390 (AU) 0.3390 (AU Est.)
Eccentricity : 0.1900
Orbital Period(Yrs) 0.1752
Orbital Period(Observed/Estimated) 64.00 (Days Obs.) 84.38 (Days Est.)
Surface Gravity (G Earth) 0.9151
Star Radiation at Atmospheric Boundary: 2313.4 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 309.5 (K)
Blackbody T 0.3(K) 290.7 (K)
Blackbody T 0.7(K) 235.2 (K)
Tidally Locked Blackbody T 0.1(K) 368.1 (K)
Tidally Locked Blackbody T 0.3(K) 345.7 (K)
Size Class: sub-Neptune-size
Mass Class:
Detection Type : Primary Transit
Mass Detection :
Radius Detection : Primary Transit
Habitability by Solar Eq. Astronomical Unit: 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) 1.3 (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 "Jason F. Rowe,Stephen T. Bryson, Geo_rey W. Marcy, Jack J. Lissauer, Daniel Jontof-Hutter, Fergal Mullally, Ronald L. Gilliland, Howard Issacson, Eric Ford, Steve B. Howell, William J. Borucki, Michael Haas, Daniel Huber, Jason H. Ste_en, Susan E. Thompson, Elisa Quintana, Thomas Barclay, Martin Still,Jonathan Fortney,T. N. Gautier III, Roger Hunter, Douglas A. Caldwell, David R. Ciardi Edna Devore, William Cochran, Jon Jenkins, Eric Agol, Joshua A. Carter, John Geary,"
Discovery Paper - Title Validation of Kepler„¹”£„»­Ō Multiple Planet Candidates. III: Light Curve Analysis & Announcement of Hundreds of New Multi-planet Systems
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 http://www.openexoplanetcatalogue.com/planet/Kepler-436%20b/
Kepler-436 b
Kepler-436 b

  • Kepler-436 b 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 2015.
  • 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 b orbits around the star Kepler-436 every 64.0 days with its orbital distance of 0.34 AU ( 50713678.2 km)
  • (Projected orbit of Kepler-436 b 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 b : 2313.39 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 b)



    (Zoomed position in Stellar Map of star Kepler-436 and its Exoplanet Kepler-436 b (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