Imaginary Picture of Kepler-1264 b

Display orbital revolution of Kepler-1264 b around the hoststar Kepler-1264
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Exoplanet Name : Kepler-1264 b
Alternate Name : "2MASS J19193225+4512414 b, K02517.01, KIC 8947520 b, KOI-2517 b, KOI-2517.01, WISE J191932.25+451241.5 b"
Status : Confirmed
Radius (Rjup / Re): 0.1050 (Rjup) 1.1769 (Rearth)
Mass (Mjup / Me): 0.0055 (Mjup) 1.7584 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.0191 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0027
Orbital Period(Observed/Estimated) 0.97 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 1.2694
Star Radiation at Atmospheric Boundary: 3236432.9 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1893.0 (K)
Blackbody T 0.3(K) 1777.8 (K)
Blackbody T 0.7(K) 1438.4 (K)
Tidally Locked Blackbody T 0.1(K) 2251.2 (K)
Tidally Locked Blackbody T 0.3(K) 2114.1 (K)
Size Class: 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-1264
Alternate Name : "2MASS J19193225+4512414, KIC 8947520, KOI-2517, WISE J191932.25+451241.5"
Star Distance(LY) : 2619.4
Stellar Radius(Rsun) : 1.0 (Rsun Measured)
Stellar Mass(Msun) : 1.0 (Msun Measured) 1.0 (Msun Estimated)
Star Age : 4.2 (GY)
Temperature : 5606 (K)
Spectral type : G2
UV portion[%]: 7.3
Visible portion[%]: 43.9
IR portion[%]: 48.8
Metalicity : -0.0
Absolute Magnitude: 3.8
Apparent Magnitude: 13.3
Right Ascension(RA) 289.8844
Declination (DEC) 45.2115
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. Batalha11"
Discovery Paper - Title FALSE POSITIVE PROBABILITIES FOR ALL KEPLER OBJECTS OF INTEREST: 1284 NEWLY VALIDATED PLANETS AND 445 LIKELY FALSE POSITIVES
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Kepler-1264+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-1264%20b/
Kepler-1264 b
Kepler-1264 b

  • Kepler-1264 b is an exoplanet orbiting the star Kepler-1264, located about 2619.4 light-years (803.1 pc) away from Solar System. Its discovery was publicly announced on 2016.
  • The host star Kepler-1264 has apparent magnitude of 13.3, with absolute magnitude of 3.8.
  • It is 1.0 times more massive and 1.0 times bigger compared with our Sun. The surface temperature is 5606 with its spectral types of G2
  • In this planetary system, the extrasolar planet Kepler-1264 b orbits around the star Kepler-1264 every 1.0 days with its orbital distance of 0.02 AU ( 2856392.3 km)
  • (Projected orbit of Kepler-1264 b around its host star Kepler-1264)


  • The Star Kepler-1264 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.672 AU ( 100526706.0 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.929 AU ( 138954178.4 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.415 AU ( 211735417.4 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.083 AU ( 311577942.3 km)
  • Radiation at Planetary Boundary of Kepler-1264 b : 3236432.86 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-1264)



  • Kopparapu Recent Venus for Star Kepler-1264 distance : 0.704 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-1264 distance : 0.891 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-1264 distance : 0.861 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-1264 distance : 0.944 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1264 distance : 1.581 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-1264 distance : 1.668 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-1264)



  • Original Kopparapu Recent Venus for Star Kepler-1264 distance : 0.702 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-1264 distance : 0.916 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-1264 distance : 0.929 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1264 distance : 1.609 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-1264 distance : 1.673 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-1264)



    (Position in Stellar Map of star Kepler-1264 and its Exoplanet Kepler-1264 b)



    (Zoomed position in Stellar Map of star Kepler-1264 and its Exoplanet Kepler-1264 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-1264*)
    *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