Imaginary Picture of Kepler-1298 b

Display orbital revolution of Kepler-1298 b around the hoststar Kepler-1298
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Exoplanet Name : Kepler-1298 b
Alternate Name : "2MASS J18574145+4906224 b, K02632.01, KIC 11337566 b, KOI-2632 b, KOI-2632.01, WISE J185741.45+490622.3 b"
Status : Confirmed
Radius (Rjup / Re): 0.1170 (Rjup) 1.3115 (Rearth)
Mass (Mjup / Me): 0.0082 (Mjup) 2.6041 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.0820 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0195
Orbital Period(Observed/Estimated) 7.13 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 1.5141
Star Radiation at Atmospheric Boundary: 1368154.3 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1526.4 (K)
Blackbody T 0.3(K) 1433.5 (K)
Blackbody T 0.7(K) 1159.8 (K)
Tidally Locked Blackbody T 0.1(K) 1815.2 (K)
Tidally Locked Blackbody T 0.3(K) 1704.7 (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-1298
Alternate Name : "2MASS J18574145+4906224, KIC 11337566, KOI-2632, WISE J185741.45+490622.3"
Star Distance(LY) : 1774.3
Stellar Radius(Rsun) : 2.2 (Rsun Measured)
Stellar Mass(Msun) : 1.4 (Msun Measured) 1.5 (Msun Estimated)
Star Age : 2.6 (GY)
Temperature : 6238 (K)
Spectral type : F8
UV portion[%]: 7.8
Visible portion[%]: 44.8
IR portion[%]: 47.4
Metalicity : 0.1
Absolute Magnitude: 1.7
Apparent Magnitude: 10.4
Right Ascension(RA) 284.4227
Declination (DEC) 49.1062
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. Batalha23"
Discovery Paper - Title FALSE POSITIVE PROBABILITIES FOR ALL KEPLER OBJECTS OF INTEREST: 1284 NEWLY VALIDATED PLANETS AND 440 LIKELY FALSE POSITIVES
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Kepler-1298+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-1298%20b/
Kepler-1298 b
Kepler-1298 b

  • Kepler-1298 b is an exoplanet orbiting the star Kepler-1298, located about 1774.3 light-years (544.0 pc) away from Solar System. Its discovery was publicly announced on 2016.
  • The host star Kepler-1298 has apparent magnitude of 10.4, with absolute magnitude of 1.7.
  • It is 1.4 times more massive and 2.2 times bigger compared with our Sun. The surface temperature is 6238 with its spectral types of F8
  • In this planetary system, the extrasolar planet Kepler-1298 b orbits around the star Kepler-1298 every 7.1 days with its orbital distance of 0.08 AU ( 12273579.4 km)
  • (Projected orbit of Kepler-1298 b around its host star Kepler-1298)


  • The Star Kepler-1298 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.877 AU ( 280846535.2 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 2.595 AU ( 388203305.6 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 3.954 AU ( 591535928.5 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 5.819 AU ( 870471032.4 km)
  • Radiation at Planetary Boundary of Kepler-1298 b : 1368154.30 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-1298)



  • Kopparapu Recent Venus for Star Kepler-1298 distance : 1.892 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-1298 distance : 2.396 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-1298 distance : 2.314 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-1298 distance : 2.536 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1298 distance : 4.187 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-1298 distance : 4.416 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-1298)



  • Original Kopparapu Recent Venus for Star Kepler-1298 distance : 1.913 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-1298 distance : 2.459 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-1298 distance : 2.532 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1298 distance : 4.263 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-1298 distance : 4.433 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-1298)



    (Position in Stellar Map of star Kepler-1298 and its Exoplanet Kepler-1298 b)



    (Zoomed position in Stellar Map of star Kepler-1298 and its Exoplanet Kepler-1298 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-1298*)
    *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