Imaginary Picture of Kepler-1122 b

Display orbital revolution of Kepler-1122 b around the hoststar Kepler-1122
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Exoplanet Name : Kepler-1122 b
Alternate Name : "2MASS J19130732+4620272 b, K02152.01, KIC 9641481 b, KOI-2152 b, KOI-2152.01, WISE J191307.31+462026.9 b"
Status : Confirmed
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.)
Surface Gravity (G Earth) 1.2303
Star Radiation at Atmospheric Boundary: 31978.5 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 596.8 (K)
Blackbody T 0.3(K) 560.5 (K)
Blackbody T 0.7(K) 453.5 (K)
Tidally Locked Blackbody T 0.1(K) 709.8 (K)
Tidally Locked Blackbody T 0.3(K) 666.5 (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 : "2MASS J19130732+4620272, KIC 9641481, KOI-2152, WISE J191307.31+462026.9"
Star Distance(LY) : 4015.8
Stellar Radius(Rsun) : 1.2 (Rsun Measured)
Stellar Mass(Msun) : 0.9 (Msun Measured) 0.9 (Msun Estimated)
Star Age : 4.7 (GY)
Temperature : 5519 (K)
Spectral type : G7
UV portion[%]: 7.0
Visible portion[%]: 43.4
IR portion[%]: 49.7
Metalicity : -0.0
Absolute Magnitude: 3.4
Apparent Magnitude: 13.9
Right Ascension(RA) 288.2805
Declination (DEC) 46.3409
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-1122+&submit=SIMBAD+search
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 4015.8 light-years (1231.3 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 3.4.
  • It is 0.9 times more massive and 1.2 times bigger compared with our Sun. The surface temperature is 5519 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 ) : 0.807 AU ( 120727263.8 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.116 AU ( 166876628.3 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.700 AU ( 254283051.9 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.501 AU ( 374188650.2 km)
  • Radiation at Planetary Boundary of Kepler-1122 b : 31978.48 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 : 0.849 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-1122 distance : 1.075 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-1122 distance : 1.039 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-1122 distance : 1.139 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1122 distance : 1.913 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-1122 distance : 2.018 AU

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



  • Original Kopparapu Recent Venus for Star Kepler-1122 distance : 0.846 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-1122 distance : 1.106 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-1122 distance : 1.120 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1122 distance : 1.947 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-1122 distance : 2.024 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))

    (Synthetic Spectrum of star Kepler-1122*)
    *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