Imaginary Picture of Kepler-1147 b

Display orbital revolution of Kepler-1147 b around the hoststar Kepler-1147
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Exoplanet Name : Kepler-1147 b
Alternate Name : "2MASS J19301140+4138346 b, K02221.01, KIC 6287313 b, KOI-2221 b, KOI-2221.01"
Status : Confirmed
Radius (Rjup / Re): 0.2330 (Rjup) 2.6117 (Rearth)
Mass (Mjup / Me): 0.0203 (Mjup) 6.4425 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.0974 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0291
Orbital Period(Observed/Estimated) 10.63 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 0.9445
Star Radiation at Atmospheric Boundary: 275013.6 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1022.1 (K)
Blackbody T 0.3(K) 959.8 (K)
Blackbody T 0.7(K) 776.6 (K)
Tidally Locked Blackbody T 0.1(K) 1215.5 (K)
Tidally Locked Blackbody T 0.3(K) 1141.4 (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-1147
Alternate Name : "2MASS J19301140+4138346, KIC 6287313, KOI-2221"
Star Distance(LY) : 5420.7
Stellar Radius(Rsun) : 1.2 (Rsun Measured)
Stellar Mass(Msun) : 1.1 (Msun Measured) 1.1 (Msun Estimated)
Star Age : 3.8 (GY)
Temperature : 6083 (K)
Spectral type : G1
UV portion[%]: 7.8
Visible portion[%]: 44.8
IR portion[%]: 47.4
Metalicity : 0.1
Absolute Magnitude: 3.1
Apparent Magnitude: 14.2
Right Ascension(RA) 292.5475
Declination (DEC) 41.6430
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-1147+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-1147%20b/
Kepler-1147 b
Kepler-1147 b

  • Kepler-1147 b is an exoplanet orbiting the star Kepler-1147, located about 5420.7 light-years (1662.0 pc) away from Solar System. Its discovery was publicly announced on 2016.
  • The host star Kepler-1147 has apparent magnitude of 14.2, with absolute magnitude of 3.1.
  • It is 1.1 times more massive and 1.2 times bigger compared with our Sun. The surface temperature is 6083 with its spectral types of G1
  • In this planetary system, the extrasolar planet Kepler-1147 b orbits around the star Kepler-1147 every 10.6 days with its orbital distance of 0.10 AU ( 14564794.8 km)
  • (Projected orbit of Kepler-1147 b around its host star Kepler-1147)


  • The Star Kepler-1147 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.999 AU ( 149421051.3 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.381 AU ( 206538941.3 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.104 AU ( 314719639.6 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 3.096 AU ( 463123736.6 km)
  • Radiation at Planetary Boundary of Kepler-1147 b : 275013.64 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-1147)



  • Kopparapu Recent Venus for Star Kepler-1147 distance : 1.016 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-1147 distance : 1.287 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-1147 distance : 1.243 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-1147 distance : 1.362 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1147 distance : 2.256 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-1147 distance : 2.379 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-1147)



  • Original Kopparapu Recent Venus for Star Kepler-1147 distance : 1.024 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-1147 distance : 1.321 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-1147 distance : 1.355 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1147 distance : 2.296 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-1147 distance : 2.388 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-1147)



    (Position in Stellar Map of star Kepler-1147 and its Exoplanet Kepler-1147 b)



    (Zoomed position in Stellar Map of star Kepler-1147 and its Exoplanet Kepler-1147 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-1147*)
    *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