Imaginary Picture of Kepler-1311 c

Display orbital revolution of Kepler-1311 c around the hoststar Kepler-1311
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Exoplanet Name : Kepler-1311 c
Alternate Name : "2MASS J19183630+4349279 c, K02674.03, KIC 8022489 c, KOI-2674 c, KOI-2674.03, WISE J191836.30+434927.9 c"
Status : Confirmed
Radius (Rjup / Re): 0.1090 (Rjup) 1.2218 (Rearth)
Mass (Mjup / Me): 0.0063 (Mjup) 2.0133 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.0370 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0069
Orbital Period(Observed/Estimated) 2.54 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 1.3487
Star Radiation at Atmospheric Boundary: 2899922.2 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1841.8 (K)
Blackbody T 0.3(K) 1729.6 (K)
Blackbody T 0.7(K) 1399.5 (K)
Tidally Locked Blackbody T 0.1(K) 2190.3 (K)
Tidally Locked Blackbody T 0.3(K) 2056.9 (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-1311
Alternate Name : "2MASS J19183630+4349279, KIC 8022489, KOI-2674, WISE J191836.30+434927.9"
Star Distance(LY) : 2824.4
Stellar Radius(Rsun) : 1.7 (Rsun Measured)
Stellar Mass(Msun) : 1.1 (Msun Measured) 1.1 (Msun Estimated)
Star Age : 7.6 (GY)
Temperature : 5754 (K)
Spectral type : G3
UV portion[%]: 7.7
Visible portion[%]: 44.6
IR portion[%]: 47.6
Metalicity : 0.1
Absolute Magnitude: 2.5
Apparent Magnitude: 12.2
Right Ascension(RA) 289.6513
Declination (DEC) 43.8244
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors "Timothy D. Morton1, Stephen T. Bryson2, Jeffrey L. Coughlin2,3, Jason F. Rowe4, Ganesh Ravichandran5, Erik A. Petigura6,7, Michael R. Haas2, and Natalie M. Batalha26"
Discovery Paper - Title FALSE POSITIVE PROBABILITIES FOR ALL KEPLER OBJECTS OF INTEREST: 1284 NEWLY VALIDATED PLANETS AND 443 LIKELY FALSE POSITIVES
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Kepler-1311+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-1311%20c/
Kepler-1311 c
Kepler-1311 c

  • Kepler-1311 c is an exoplanet orbiting the star Kepler-1311, located about 2824.4 light-years (866.0 pc) away from Solar System. Its discovery was publicly announced on 2016.
  • The host star Kepler-1311 has apparent magnitude of 12.2, with absolute magnitude of 2.5.
  • It is 1.1 times more massive and 1.7 times bigger compared with our Sun. The surface temperature is 5754 with its spectral types of G3
  • In this planetary system, the extrasolar planet Kepler-1311 c orbits around the star Kepler-1311 every 2.5 days with its orbital distance of 0.04 AU ( 5533469.5 km)
  • (Projected orbit of Kepler-1311 c around its host star Kepler-1311)


  • The Star Kepler-1311 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.232 AU ( 184340595.9 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.703 AU ( 254806877.5 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.595 AU ( 388269292.7 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 3.819 AU ( 571355273.1 km)
  • Radiation at Planetary Boundary of Kepler-1311 c : 2899922.20 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-1311)



  • Kopparapu Recent Venus for Star Kepler-1311 distance : 1.279 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-1311 distance : 1.620 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-1311 distance : 1.564 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-1311 distance : 1.715 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1311 distance : 2.862 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-1311 distance : 3.019 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-1311)



  • Original Kopparapu Recent Venus for Star Kepler-1311 distance : 1.280 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-1311 distance : 1.664 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-1311 distance : 1.694 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1311 distance : 2.912 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-1311 distance : 3.029 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-1311)



    (Position in Stellar Map of star Kepler-1311 and its Exoplanet Kepler-1311 c)



    (Zoomed position in Stellar Map of star Kepler-1311 and its Exoplanet Kepler-1311 c (zoom level 3))

    (Synthetic Spectrum of star Kepler-1311*)
    *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