Imaginary Picture of Kepler-1122 b
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Exoplanet Name : Kepler-1122 b
Alternate Name :
Radius (Rjup / Re): 0.1820 (Rjup) 2.0400 (Rearth)
Mass (Mjup / Me): 0.0161 (Mjup) 5.1201 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.2307 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.1155
Orbital Period(Observed/Estimated) 42.19 (Days Obs.) 0.00 (Days Est.)
Star Radiation at Atmospheric Boundary: 17243.9 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 511.4 (K)
Blackbody T 0.3(K) 480.3 (K)
Blackbody T 0.7(K) 388.6 (K)
Tidally Locked Blackbody T 0.1(K) 608.2 (K)
Tidally Locked Blackbody T 0.3(K) 571.2 (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-1122
Alternate Name :
Star Distance(LY) : 3013.7
Stellar Radius(Rsun) : 0.9 (Rsun Measured)
Stellar Mass(Msun) : 0.9 (Msun Measured) 0.9 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 5544 (K)
Spectral type : G7
Metalicity : -0.0
Absolute Magnitude: 4.0
Apparent Magnitude: 13.9
Right Ascension(RA) 288.2805
Declination (DEC) 46.3409
Hubble Space Telescope Guide Star Catalog (GSC) ID 0
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 0
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-1122%20b/
Kepler-1122 b
Kepler-1122 b

  • Kepler-1122 b is an exoplanet orbiting the star Kepler-1122, located about 3013.7 light-years (924.0 pc) away from Solar System. Its discovery was publicly announced on 2016.
  • The host star Kepler-1122 has apparent magnitude of 13.9, with absolute magnitude of 4.0.
  • It is 0.9 times more massive and 0.9 times bigger compared with our Sun. The surface temperature is 5544 with its spectral types of G7
  • In this planetary system, the extrasolar planet Kepler-1122 b orbits around the star Kepler-1122 every 42.2 days with its orbital distance of 0.23 AU ( 34510093.2 km)
  • (Projected orbit of Kepler-1122 b around its host star Kepler-1122)


  • The Star Kepler-1122 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.593 AU ( 88653229.8 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.819 AU ( 122541931.4 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.248 AU ( 186726785.0 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.837 AU ( 274776644.1 km)
  • Radiation at Planetary Boundary of Kepler-1122 b : 17243.93 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-1122)



  • Kopparapu Recent Venus for Star Kepler-1122 distance : 0.623 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-1122 distance : 0.789 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-1122 distance : 0.762 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-1122 distance : 0.835 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1122 distance : 1.402 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-1122 distance : 1.479 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-1122)



  • Original Kopparapu Recent Venus for Star Kepler-1122 distance : 0.621 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-1122 distance : 0.811 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-1122 distance : 0.821 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1122 distance : 1.426 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-1122 distance : 1.483 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-1122)



    (Position in Stellar Map of star Kepler-1122 and its Exoplanet Kepler-1122 b)



    (Zoomed position in Stellar Map of star Kepler-1122 and its Exoplanet Kepler-1122 b (zoom level 3))