Imaginary Picture of Kepler-1185 b

Display orbital revolution of Kepler-1185 b around the hoststar Kepler-1185
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Exoplanet Name : Kepler-1185 b
Alternate Name : "2MASS J19085788+3919579 b, K02311.03, KIC 4247991 b, KOI-2311 b, KOI-2311.03, WISE J190857.88+391957.8 b"
Status : Confirmed
Radius (Rjup / Re): 0.1190 (Rjup) 1.3339 (Rearth)
Mass (Mjup / Me): 0.0087 (Mjup) 2.7700 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.4279 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.2857
Orbital Period(Observed/Estimated) 104.35 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 1.5569
Star Radiation at Atmospheric Boundary: 12816.2 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 474.9 (K)
Blackbody T 0.3(K) 446.0 (K)
Blackbody T 0.7(K) 360.8 (K)
Tidally Locked Blackbody T 0.1(K) 564.7 (K)
Tidally Locked Blackbody T 0.3(K) 530.3 (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-1185
Alternate Name : "2MASS J19085788+3919579, KIC 4247991, KOI-2311, WISE J190857.88+391957.8"
Star Distance(LY) : 1497.6
Stellar Radius(Rsun) : 1.4 (Rsun Measured)
Stellar Mass(Msun) : 1.0 (Msun Measured) 1.0 (Msun Estimated)
Star Age : 1.6 (GY)
Temperature : 5657 (K)
Spectral type : G5
UV portion[%]: 7.5
Visible portion[%]: 44.2
IR portion[%]: 48.3
Metalicity : -0.0
Absolute Magnitude: 3.1
Apparent Magnitude: 11.4
Right Ascension(RA) 287.2412
Declination (DEC) 39.3328
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors "Timothy D. Morton, Stephen T. Bryson, Jeffrey L. Coughlin, Jason F. Rowe, Ganesh Ravichandran, Erik A. Petigura, Michael R. Haas, and Natalie M. Batalha2"
Discovery Paper - Title FALSE POSITIVE PROBABILITIES FOR ALL KEPLER OBJECTS OF INTEREST: 1284 NEWLY VALIDATED PLANETS AND 428 LIKELY FALSE POSITIVES
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Kepler-1185+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-1185%20b/
Kepler-1185 b
Kepler-1185 b

  • Kepler-1185 b is an exoplanet orbiting the star Kepler-1185, located about 1497.6 light-years (459.2 pc) away from Solar System. Its discovery was publicly announced on 2016.
  • The host star Kepler-1185 has apparent magnitude of 11.4, with absolute magnitude of 3.1.
  • It is 1.0 times more massive and 1.4 times bigger compared with our Sun. The surface temperature is 5657 with its spectral types of G5
  • In this planetary system, the extrasolar planet Kepler-1185 b orbits around the star Kepler-1185 every 104.4 days with its orbital distance of 0.43 AU ( 64016104.2 km)
  • (Projected orbit of Kepler-1185 b around its host star Kepler-1185)


  • The Star Kepler-1185 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.948 AU ( 141774780.8 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.310 AU ( 195969797.3 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.996 AU ( 298614603.0 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.937 AU ( 439424469.8 km)
  • Radiation at Planetary Boundary of Kepler-1185 b : 12816.19 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-1185)



  • Kopparapu Recent Venus for Star Kepler-1185 distance : 0.989 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-1185 distance : 1.253 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-1185 distance : 1.210 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-1185 distance : 1.327 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1185 distance : 2.220 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-1185 distance : 2.341 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-1185)



  • Original Kopparapu Recent Venus for Star Kepler-1185 distance : 0.988 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-1185 distance : 1.288 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-1185 distance : 1.308 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1185 distance : 2.259 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-1185 distance : 2.349 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-1185)



    (Position in Stellar Map of star Kepler-1185 and its Exoplanet Kepler-1185 b)



    (Zoomed position in Stellar Map of star Kepler-1185 and its Exoplanet Kepler-1185 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-1185*)
    *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