Imaginary Picture of Kepler-1303 b

Display orbital revolution of Kepler-1303 b around the hoststar Kepler-1303
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Exoplanet Name : Kepler-1303 b
Alternate Name : "2MASS J18570891+4221202 b, K02649.01, KIC 6842682 b, KOI-2649 b, KOI-2649.01, WISE J185708.91+422120.1 b"
Status : Confirmed
Radius (Rjup / Re): 0.1270 (Rjup) 1.4235 (Rearth)
Mass (Mjup / Me): 0.0111 (Mjup) 3.5132 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.0756 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0207
Orbital Period(Observed/Estimated) 7.56 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 1.7337
Star Radiation at Atmospheric Boundary: 245493.0 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 993.5 (K)
Blackbody T 0.3(K) 933.0 (K)
Blackbody T 0.7(K) 754.9 (K)
Tidally Locked Blackbody T 0.1(K) 1181.4 (K)
Tidally Locked Blackbody T 0.3(K) 1109.5 (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-1303
Alternate Name : "2MASS J18570891+4221202, KIC 6842682, KOI-2649, WISE J185708.91+422120.1"
Star Distance(LY) : 2929.1
Stellar Radius(Rsun) : 1.0 (Rsun Measured)
Stellar Mass(Msun) : 1.0 (Msun Measured) 1.0 (Msun Estimated)
Star Age : 4.5 (GY)
Temperature : 5844 (K)
Spectral type : G3
UV portion[%]: 0.3
Visible portion[%]: 1.5
IR portion[%]: 98.2
Metalicity : 0.0
Absolute Magnitude: 3.7
Apparent Magnitude: 13.5
Right Ascension(RA) 284.2872
Declination (DEC) 42.3556
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. Batalha27"
Discovery Paper - Title FALSE POSITIVE PROBABILITIES FOR ALL KEPLER OBJECTS OF INTEREST: 1284 NEWLY VALIDATED PLANETS AND 444 LIKELY FALSE POSITIVES
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Kepler-1303+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-1303%20b/
Kepler-1303 b
Kepler-1303 b

  • Kepler-1303 b is an exoplanet orbiting the star Kepler-1303, located about 2929.1 light-years (898.1 pc) away from Solar System. Its discovery was publicly announced on 2016.
  • The host star Kepler-1303 has apparent magnitude of 13.5, with absolute magnitude of 3.7.
  • It is 1.0 times more massive and 1.0 times bigger compared with our Sun. The surface temperature is 5844 with its spectral types of G3
  • In this planetary system, the extrasolar planet Kepler-1303 b orbits around the star Kepler-1303 every 7.6 days with its orbital distance of 0.08 AU ( 11316244.0 km)
  • (Projected orbit of Kepler-1303 b around its host star Kepler-1303)


  • The Star Kepler-1303 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.733 AU ( 109686248.1 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.013 AU ( 151615059.4 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.544 AU ( 231027798.1 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.273 AU ( 339967525.6 km)
  • Radiation at Planetary Boundary of Kepler-1303 b : 245493.03 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-1303)



  • Kopparapu Recent Venus for Star Kepler-1303 distance : 0.757 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-1303 distance : 0.959 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-1303 distance : 0.926 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-1303 distance : 1.015 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1303 distance : 1.690 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-1303 distance : 1.782 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-1303)



  • Original Kopparapu Recent Venus for Star Kepler-1303 distance : 0.759 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-1303 distance : 0.985 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-1303 distance : 1.004 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1303 distance : 1.720 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-1303 distance : 1.788 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-1303)



    (Position in Stellar Map of star Kepler-1303 and its Exoplanet Kepler-1303 b)



    (Zoomed position in Stellar Map of star Kepler-1303 and its Exoplanet Kepler-1303 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-1303*)
    *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