Imaginary Picture of Kepler-1235 b

Display orbital revolution of Kepler-1235 b around the hoststar Kepler-1235
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Exoplanet Name : Kepler-1235 b
Alternate Name : "2MASS J18593672+4357142 b, K02426.01, KIC 8081899 b, KOI-2426 b, KOI-2426.01, WISE J185936.71+435714.7 b"
Status : Confirmed
Radius (Rjup / Re): 0.0700 (Rjup) 0.7846 (Rearth)
Mass (Mjup / Me): 0.0013 (Mjup) 0.4139 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.0494 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0114
Orbital Period(Observed/Estimated) 4.16 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 0.6724
Star Radiation at Atmospheric Boundary: 358078.0 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1091.8 (K)
Blackbody T 0.3(K) 1025.3 (K)
Blackbody T 0.7(K) 829.6 (K)
Tidally Locked Blackbody T 0.1(K) 1298.4 (K)
Tidally Locked Blackbody T 0.3(K) 1219.3 (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-1235
Alternate Name : "2MASS J18593672+4357142, KIC 8081899, KOI-2426, WISE J185936.71+435714.7"
Star Distance(LY) : 1762.5
Stellar Radius(Rsun) : 0.9 (Rsun Measured)
Stellar Mass(Msun) : 0.9 (Msun Measured) 0.9 (Msun Estimated)
Star Age : 4.6 (GY)
Temperature : 5327 (K)
Spectral type : G7
UV portion[%]: 7.0
Visible portion[%]: 43.5
IR portion[%]: 49.4
Metalicity : 0.0
Absolute Magnitude: 4.0
Apparent Magnitude: 12.6
Right Ascension(RA) 284.9030
Declination (DEC) 43.9540
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. Batalha12"
Discovery Paper - Title FALSE POSITIVE PROBABILITIES FOR ALL KEPLER OBJECTS OF INTEREST: 1284 NEWLY VALIDATED PLANETS AND 446 LIKELY FALSE POSITIVES
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Kepler-1235+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-1235%20b/
Kepler-1235 b
Kepler-1235 b

  • Kepler-1235 b is an exoplanet orbiting the star Kepler-1235, located about 1762.5 light-years (540.4 pc) away from Solar System. Its discovery was publicly announced on 2016.
  • The host star Kepler-1235 has apparent magnitude of 12.6, with absolute magnitude of 4.0.
  • It is 0.9 times more massive and 0.9 times bigger compared with our Sun. The surface temperature is 5327 with its spectral types of G7
  • In this planetary system, the extrasolar planet Kepler-1235 b orbits around the star Kepler-1235 every 4.2 days with its orbital distance of 0.05 AU ( 7392545.5 km)
  • (Projected orbit of Kepler-1235 b around its host star Kepler-1235)


  • The Star Kepler-1235 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.578 AU ( 86539250.5 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.800 AU ( 119619859.6 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.218 AU ( 182274194.2 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.793 AU ( 268224461.7 km)
  • Radiation at Planetary Boundary of Kepler-1235 b : 358078.02 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-1235)



  • Kopparapu Recent Venus for Star Kepler-1235 distance : 0.615 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-1235 distance : 0.779 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-1235 distance : 0.753 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-1235 distance : 0.826 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1235 distance : 1.395 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-1235 distance : 1.472 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-1235)



  • Original Kopparapu Recent Venus for Star Kepler-1235 distance : 0.611 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-1235 distance : 0.802 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-1235 distance : 0.809 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1235 distance : 1.419 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-1235 distance : 1.476 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-1235)



    (Position in Stellar Map of star Kepler-1235 and its Exoplanet Kepler-1235 b)



    (Zoomed position in Stellar Map of star Kepler-1235 and its Exoplanet Kepler-1235 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-1235*)
    *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