Imaginary Picture of Kepler-1139 b

Display orbital revolution of Kepler-1139 b around the hoststar Kepler-1139
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Exoplanet Name : Kepler-1139 b
Alternate Name : "2MASS J19114694+3913500 b, K02202.01, KIC 4144576 b, KOI-2202 b, KOI-2202.01, WISE J191146.94+391349.9 b"
Status : Confirmed
Radius (Rjup / Re): 0.1060 (Rjup) 1.1882 (Rearth)
Mass (Mjup / Me): 0.0057 (Mjup) 1.8197 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.0167 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0022
Orbital Period(Observed/Estimated) 0.81 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 1.2890
Star Radiation at Atmospheric Boundary: 2287400.5 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1735.7 (K)
Blackbody T 0.3(K) 1630.0 (K)
Blackbody T 0.7(K) 1318.9 (K)
Tidally Locked Blackbody T 0.1(K) 2064.1 (K)
Tidally Locked Blackbody T 0.3(K) 1938.4 (K)
Size Class: 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-1139
Alternate Name : "2MASS J19114694+3913500, KIC 4144576, KOI-2202, WISE J191146.94+391349.9"
Star Distance(LY) : 1614.4
Stellar Radius(Rsun) : 0.8 (Rsun Measured)
Stellar Mass(Msun) : 0.9 (Msun Measured) 0.9 (Msun Estimated)
Star Age : 4.5 (GY)
Temperature : 5310 (K)
Spectral type : G6
UV portion[%]: 5.8
Visible portion[%]: 41.5
IR portion[%]: 52.6
Metalicity : 0.1
Absolute Magnitude: 4.3
Apparent Magnitude: 12.7
Right Ascension(RA) 287.9456
Declination (DEC) 39.2306
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-1139+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-1139%20b/
Kepler-1139 b
Kepler-1139 b

  • Kepler-1139 b is an exoplanet orbiting the star Kepler-1139, located about 1614.4 light-years (495.0 pc) away from Solar System. Its discovery was publicly announced on 2016.
  • The host star Kepler-1139 has apparent magnitude of 12.7, with absolute magnitude of 4.3.
  • It is 0.9 times more massive and 0.8 times bigger compared with our Sun. The surface temperature is 5310 with its spectral types of G6
  • In this planetary system, the extrasolar planet Kepler-1139 b orbits around the star Kepler-1139 every 0.8 days with its orbital distance of 0.02 AU ( 2498585.9 km)
  • (Projected orbit of Kepler-1139 b around its host star Kepler-1139)


  • The Star Kepler-1139 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.494 AU ( 73925739.3 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.683 AU ( 102184690.8 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.041 AU ( 155706855.3 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.532 AU ( 229129458.7 km)
  • Radiation at Planetary Boundary of Kepler-1139 b : 2287400.47 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-1139)



  • Kopparapu Recent Venus for Star Kepler-1139 distance : 0.526 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-1139 distance : 0.666 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-1139 distance : 0.643 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-1139 distance : 0.706 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1139 distance : 1.194 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-1139 distance : 1.259 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-1139)



  • Original Kopparapu Recent Venus for Star Kepler-1139 distance : 0.523 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-1139 distance : 0.686 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-1139 distance : 0.691 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1139 distance : 1.214 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-1139 distance : 1.263 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-1139)



    (Position in Stellar Map of star Kepler-1139 and its Exoplanet Kepler-1139 b)



    (Zoomed position in Stellar Map of star Kepler-1139 and its Exoplanet Kepler-1139 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-1139*)
    *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