Imaginary Picture of Kepler-1307 b

Display orbital revolution of Kepler-1307 b around the hoststar Kepler-1307
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Exoplanet Name : Kepler-1307 b
Alternate Name : "2MASS J19312876+4644306 b, K02660.01, KIC 9893318 b, KOI-2660 b, KOI-2660.01"
Status : Confirmed
Radius (Rjup / Re): 0.2200 (Rjup) 2.4660 (Rearth)
Mass (Mjup / Me): 0.0192 (Mjup) 6.1075 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.1371 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0493
Orbital Period(Observed/Estimated) 18.02 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 1.0043
Star Radiation at Atmospheric Boundary: 56046.3 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 686.7 (K)
Blackbody T 0.3(K) 644.9 (K)
Blackbody T 0.7(K) 521.8 (K)
Tidally Locked Blackbody T 0.1(K) 816.7 (K)
Tidally Locked Blackbody T 0.3(K) 766.9 (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-1307
Alternate Name : "2MASS J19312876+4644306, KIC 9893318, KOI-2660"
Star Distance(LY) : 3311.6
Stellar Radius(Rsun) : 0.8 (Rsun Measured)
Stellar Mass(Msun) : 1.1 (Msun Measured) 1.1 (Msun Estimated)
Star Age : 4.1 (GY)
Temperature : 6248 (K)
Spectral type : G1
UV portion[%]: 7.8
Visible portion[%]: 44.8
IR portion[%]: 47.4
Metalicity : 0.1
Absolute Magnitude: 4.1
Apparent Magnitude: 14.2
Right Ascension(RA) 292.8698
Declination (DEC) 46.7419
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors "Timothy D. Morton1, Stephen T. Bryson2, Jeffrey L. Coughlin2,3, Jason F. Rowe4, Ganesh Ravichandran5, Erik A. Petigura6,7, Michael R. Haas2, and Natalie M. Batalha31"
Discovery Paper - Title FALSE POSITIVE PROBABILITIES FOR ALL KEPLER OBJECTS OF INTEREST: 1284 NEWLY VALIDATED PLANETS AND 448 LIKELY FALSE POSITIVES
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Kepler-1307+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-1307%20b/
Kepler-1307 b
Kepler-1307 b

  • Kepler-1307 b is an exoplanet orbiting the star Kepler-1307, located about 3311.6 light-years (1015.4 pc) away from Solar System. Its discovery was publicly announced on 2016.
  • The host star Kepler-1307 has apparent magnitude of 14.2, with absolute magnitude of 4.1.
  • It is 1.1 times more massive and 0.8 times bigger compared with our Sun. The surface temperature is 6248 with its spectral types of G1
  • In this planetary system, the extrasolar planet Kepler-1307 b orbits around the star Kepler-1307 every 18.0 days with its orbital distance of 0.14 AU ( 20515220.5 km)
  • (Projected orbit of Kepler-1307 b around its host star Kepler-1307)


  • The Star Kepler-1307 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.635 AU ( 95012356.8 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.878 AU ( 131331906.9 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.338 AU ( 200120762.4 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.969 AU ( 294486468.6 km)
  • Radiation at Planetary Boundary of Kepler-1307 b : 56046.33 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-1307)



  • Kopparapu Recent Venus for Star Kepler-1307 distance : 0.640 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-1307 distance : 0.810 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-1307 distance : 0.782 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-1307 distance : 0.857 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1307 distance : 1.415 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-1307 distance : 1.493 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-1307)



  • Original Kopparapu Recent Venus for Star Kepler-1307 distance : 0.647 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-1307 distance : 0.831 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-1307 distance : 0.856 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1307 distance : 1.441 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-1307 distance : 1.498 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-1307)



    (Position in Stellar Map of star Kepler-1307 and its Exoplanet Kepler-1307 b)



    (Zoomed position in Stellar Map of star Kepler-1307 and its Exoplanet Kepler-1307 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-1307*)
    *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