Imaginary Picture of Kepler-11 b

Display orbital revolution of Kepler-11 b around the hoststar Kepler-11
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Exoplanet Name : Kepler-11 b
Alternate Name : "2MASS J19482762+4154328 b, K00157.06, KIC 6541920 b, KOI-157 b, KOI-157.06, WISE J194827.62+415432.9 b"
Status : Confirmed
Radius (Rjup / Re): 0.1610 (Rjup) 1.8046 (Rearth)
Mass (Mjup / Me): 0.0060 (Mjup) 1.9076 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0910 (AU) 0.0910 (AU Est.)
Eccentricity : 0.0450
Orbital Period(Yrs) 0.0282
Orbital Period(Observed/Estimated) 10.30 (Days Obs.) 10.23 (Days Est.)
Surface Gravity (G Earth) 0.5857
Star Radiation at Atmospheric Boundary: 196934.2 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 940.2 (K)
Blackbody T 0.3(K) 883.0 (K)
Blackbody T 0.7(K) 714.4 (K)
Tidally Locked Blackbody T 0.1(K) 1118.1 (K)
Tidally Locked Blackbody T 0.3(K) 1050.0 (K)
Size Class: super-Earth-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-11
Alternate Name : "2MASS J19482762+4154328, KIC 6541920, KOI-157, WISE J194827.62+415432.9"
Star Distance(LY) : 2107.0
Stellar Radius(Rsun) : 1.1 (Rsun Measured)
Stellar Mass(Msun) : 1.0 (Msun Measured) 0.9 (Msun Estimated)
Star Age : 8.5 (GY)
Temperature : 5763 (K)
Spectral type : G
UV portion[%]: 7.8
Visible portion[%]: 44.7
IR portion[%]: 47.5
Metalicity : 0.0
Absolute Magnitude: 4.6
Apparent Magnitude: 13.7
Right Ascension(RA) 297.1151
Declination (DEC) 41.9091
Hubble Space Telescope Guide Star Catalog (GSC) ID 03144-00002
Discovered by
Discovery Paper - Authors CUTRI R.M.; SKRUTSKIE M.F.; VAN DYK S.; BEICHMAN C.A.; CARPENTER J.M.; CHESTER T.; CAMBRESY L.; EVANS T.; FOWLER J.; GIZIS J.; HOWARD E.; HUCHRA J.; JARRETT T.; KOPAN E.L.; KIRKPATRICK J.D.; LIGHT R.M.; MARSH K.A.; McCALLON H.; SCHNEIDER S.; STIENING R.; SYKES M.; WEINBERG M.; WHEATON W.A.; WHEELOCK S.; ZACARIAS N.
Discovery Paper - Title 2MASS All Sky Catalog of point sources.
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Kepler-11+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-11%20b/
Kepler-11 b
Kepler-11 b

  • Kepler-11 b is an exoplanet orbiting the star Kepler-11, located about 2107.0 light-years (646.0 pc) away from Solar System. Its discovery was publicly announced on 2010.
  • The host star Kepler-11 has apparent magnitude of 13.7, with absolute magnitude of 4.6.
  • It is 1.0 times more massive and 1.1 times bigger compared with our Sun. The surface temperature is 5763 with its spectral types of G
  • In this planetary system, the extrasolar planet Kepler-11 b orbits around the star Kepler-11 every 10.3 days with its orbital distance of 0.09 AU ( 13613406.2 km)
  • (Projected orbit of Kepler-11 b around its host star Kepler-11)


  • The Star Kepler-11 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.790 AU ( 118183729.8 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.092 AU ( 163360799.6 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.664 AU ( 248925707.0 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.449 AU ( 366305082.5 km)
  • Radiation at Planetary Boundary of Kepler-11 b : 196934.22 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-11)



  • Kopparapu Recent Venus for Star Kepler-11 distance : 0.820 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-11 distance : 1.038 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-11 distance : 1.002 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-11 distance : 1.099 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-11 distance : 1.833 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-11 distance : 1.934 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-11)



  • Original Kopparapu Recent Venus for Star Kepler-11 distance : 0.820 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-11 distance : 1.067 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-11 distance : 1.085 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-11 distance : 1.866 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-11 distance : 1.940 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-11)



    (Position in Stellar Map of star Kepler-11 and its Exoplanet Kepler-11 b)



    (Zoomed position in Stellar Map of star Kepler-11 and its Exoplanet Kepler-11 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-11*)
    *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