Imaginary Picture of Kepler-940 b

Display orbital revolution of Kepler-940 b around the hoststar Kepler-940
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Exoplanet Name : Kepler-940 b
Alternate Name : "2MASS J19365791+4716335 b, K01723.01, KIC 10213902 b, KOI-1723 b, KOI-1723.01, WISE J193657.91+471633.4 b"
Status : Confirmed
Radius (Rjup / Re): 0.2980 (Rjup) 3.3403 (Rearth)
Mass (Mjup / Me): 0.0255 (Mjup) 8.0990 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.2957 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.1632
Orbital Period(Observed/Estimated) 59.62 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 0.7259
Star Radiation at Atmospheric Boundary: 15378.3 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 497.0 (K)
Blackbody T 0.3(K) 466.7 (K)
Blackbody T 0.7(K) 377.6 (K)
Tidally Locked Blackbody T 0.1(K) 591.1 (K)
Tidally Locked Blackbody T 0.3(K) 555.1 (K)
Size Class: 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-940
Alternate Name : "2MASS J19365791+4716335, KIC 10213902, KOI-1723, WISE J193657.91+471633.4"
Star Distance(LY) : 4126.0
Stellar Radius(Rsun) : 0.9 (Rsun Measured)
Stellar Mass(Msun) : 1.0 (Msun Measured) 1.0 (Msun Estimated)
Star Age : 3.6 (GY)
Temperature : 6120 (K)
Spectral type : G3
UV portion[%]: 7.8
Visible portion[%]: 44.7
IR portion[%]: 47.5
Metalicity : -0.1
Absolute Magnitude: 3.9
Apparent Magnitude: 14.4
Right Ascension(RA) 294.2413
Declination (DEC) 47.2760
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. Batalha"
Discovery Paper - Title FALSE POSITIVE PROBABILITIES FOR ALL KEPLER OBJECTS OF INTEREST: 1284 NEWLY VALIDATED PLANETS AND 754 LIKELY FALSE POSITIVES
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Kepler-940&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-940%20b/
Kepler-940 b
Kepler-940 b

  • Kepler-940 b is an exoplanet orbiting the star Kepler-940, located about 4126.0 light-years (1265.0 pc) away from Solar System. Its discovery was publicly announced on 2016.
  • The host star Kepler-940 has apparent magnitude of 14.4, with absolute magnitude of 3.9.
  • It is 1.0 times more massive and 0.9 times bigger compared with our Sun. The surface temperature is 6120 with its spectral types of G3
  • In this planetary system, the extrasolar planet Kepler-940 b orbits around the star Kepler-940 every 59.6 days with its orbital distance of 0.30 AU ( 44231271.1 km)
  • (Projected orbit of Kepler-940 b around its host star Kepler-940)


  • The Star Kepler-940 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.717 AU ( 107303335.4 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.991 AU ( 148321251.3 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.511 AU ( 226008763.5 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.223 AU ( 332581796.3 km)
  • Radiation at Planetary Boundary of Kepler-940 b : 15378.25 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-940)



  • Kopparapu Recent Venus for Star Kepler-940 distance : 0.728 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-940 distance : 0.922 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-940 distance : 0.891 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-940 distance : 0.976 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-940 distance : 1.615 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-940 distance : 1.704 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-940)



  • Original Kopparapu Recent Venus for Star Kepler-940 distance : 0.734 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-940 distance : 0.946 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-940 distance : 0.972 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-940 distance : 1.644 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-940 distance : 1.710 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-940)



    (Position in Stellar Map of star Kepler-940 and its Exoplanet Kepler-940 b)



    (Zoomed position in Stellar Map of star Kepler-940 and its Exoplanet Kepler-940 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-940*)
    *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