Imaginary Picture of Kepler-931 b
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Exoplanet Name : Kepler-931 b
Alternate Name :
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) 0.0747 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0220
Orbital Period(Observed/Estimated) 8.04 (Days Obs.) 0.00 (Days Est.)
Star Radiation at Atmospheric Boundary: 108856.4 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 810.7 (K)
Blackbody T 0.3(K) 761.3 (K)
Blackbody T 0.7(K) 616.0 (K)
Tidally Locked Blackbody T 0.1(K) 964.1 (K)
Tidally Locked Blackbody T 0.3(K) 905.4 (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-931
Alternate Name :
Star Distance(LY) : 1598.2
Stellar Radius(Rsun) : 0.8 (Rsun Measured)
Stellar Mass(Msun) : 0.9 (Msun Measured) 0.9 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 5241 (K)
Spectral type : K0
Metalicity : -0.0
Absolute Magnitude: 4.5
Apparent Magnitude: 12.9
Right Ascension(RA) 297.1326
Declination (DEC) 42.7683
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. Batalha"
Discovery Paper - Title FALSE POSITIVE PROBABILITIES FOR ALL KEPLER OBJECTS OF INTEREST: 1284 NEWLY VALIDATED PLANETS AND 746 LIKELY FALSE POSITIVES
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK 0
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-931%20b/
Kepler-931 b
Kepler-931 b

  • Kepler-931 b is an exoplanet orbiting the star Kepler-931, located about 1598.2 light-years (490.0 pc) away from Solar System. Its discovery was publicly announced on 2016.
  • The host star Kepler-931 has apparent magnitude of 12.9, with absolute magnitude of 4.5.
  • It is 0.9 times more massive and 0.8 times bigger compared with our Sun. The surface temperature is 5241 with its spectral types of K0
  • In this planetary system, the extrasolar planet Kepler-931 b orbits around the star Kepler-931 every 8.0 days with its orbital distance of 0.07 AU ( 11171569.4 km)
  • (Projected orbit of Kepler-931 b around its host star Kepler-931)


  • The Star Kepler-931 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.482 AU ( 72106007.7 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.666 AU ( 99669346.2 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.015 AU ( 151874026.9 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.494 AU ( 223489283.7 km)
  • Radiation at Planetary Boundary of Kepler-931 b : 108856.39 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-931)



  • Kopparapu Recent Venus for Star Kepler-931 distance : 0.515 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-931 distance : 0.652 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-931 distance : 0.630 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-931 distance : 0.691 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-931 distance : 1.171 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-931 distance : 1.236 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-931)



  • Original Kopparapu Recent Venus for Star Kepler-931 distance : 0.511 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-931 distance : 0.672 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-931 distance : 0.676 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-931 distance : 1.191 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-931 distance : 1.239 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-931)



    (Position in Stellar Map of star Kepler-931 and its Exoplanet Kepler-931 b)



    (Zoomed position in Stellar Map of star Kepler-931 and its Exoplanet Kepler-931 b (zoom level 3))