Imaginary Picture of Kepler-216 c

Display orbital revolution of Kepler-216 c around the hoststar Kepler-216
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Exoplanet Name : Kepler-216 c
Alternate Name : "2MASS J19345473+4607449 c, K00708.01, KIC 9530945 c, KOI-708 c, KOI-708.01, WISE J193454.73+460744.8 c"
Status : Confirmed
Radius (Rjup / Re): 0.2710 (Rjup) 3.0376 (Rearth)
Mass (Mjup / Me): 0.0233 (Mjup) 7.4143 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.1360 (AU) 0.1360 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0477
Orbital Period(Observed/Estimated) 17.41 (Days Obs.) 18.89 (Days Est.)
Surface Gravity (G Earth) 0.8035
Star Radiation at Atmospheric Boundary: 234691.1 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 982.4 (K)
Blackbody T 0.3(K) 922.5 (K)
Blackbody T 0.7(K) 746.4 (K)
Tidally Locked Blackbody T 0.1(K) 1168.2 (K)
Tidally Locked Blackbody T 0.3(K) 1097.1 (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-216
Alternate Name : "2MASS J19345473+4607449, KIC 9530945, KOI-708, WISE J193454.73+460744.8"
Star Distance(LY) : 3870.8
Stellar Radius(Rsun) : 1.6 (Rsun Measured)
Stellar Mass(Msun) : 0.9 (Msun Measured) 1.1 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 6119 (K)
Spectral type : G0
UV portion[%]: 7.8
Visible portion[%]: 44.8
IR portion[%]: 47.4
Metalicity : -0.2
Absolute Magnitude: 2.6
Apparent Magnitude: 13.0
Right Ascension(RA) 293.7281
Declination (DEC) 46.1292
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-216+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-216%20c/
Kepler-216 c
Kepler-216 c

  • Kepler-216 c is an exoplanet orbiting the star Kepler-216, located about 3870.8 light-years (1186.8 pc) away from Solar System. Its discovery was publicly announced on 2014.
  • The host star Kepler-216 has apparent magnitude of 13.0, with absolute magnitude of 2.6.
  • It is 0.9 times more massive and 1.6 times bigger compared with our Sun. The surface temperature is 6119 with its spectral types of G0
  • In this planetary system, the extrasolar planet Kepler-216 c orbits around the star Kepler-216 every 17.4 days with its orbital distance of 0.14 AU ( 20345310.4 km)
  • (Projected orbit of Kepler-216 c around its host star Kepler-216)


  • The Star Kepler-216 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.289 AU ( 192815932.1 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.782 AU ( 266522006.9 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.715 AU ( 406120557.4 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 3.995 AU ( 597624191.2 km)
  • Radiation at Planetary Boundary of Kepler-216 c : 234691.09 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-216)



  • Kopparapu Recent Venus for Star Kepler-216 distance : 1.308 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-216 distance : 1.657 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-216 distance : 1.600 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-216 distance : 1.754 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-216 distance : 2.902 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-216 distance : 3.061 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-216)



  • Original Kopparapu Recent Venus for Star Kepler-216 distance : 1.320 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-216 distance : 1.701 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-216 distance : 1.746 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-216 distance : 2.954 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-216 distance : 3.072 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-216)



    (Position in Stellar Map of star Kepler-216 and its Exoplanet Kepler-216 c)



    (Zoomed position in Stellar Map of star Kepler-216 and its Exoplanet Kepler-216 c (zoom level 3))

    (Synthetic Spectrum of star Kepler-216*)
    *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