Imaginary Picture of Kepler-234 b

Display orbital revolution of Kepler-234 b around the hoststar Kepler-234
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Exoplanet Name : Kepler-234 b
Alternate Name : "2MASS J19263684+3829407 b, K00800.01, KIC 3342970 b, KOI-800 b, KOI-800.01, WISE J192636.84+382940.7 b"
Status : Confirmed
Radius (Rjup / Re): 0.3300 (Rjup) 3.6990 (Rearth)
Mass (Mjup / Me): 0.0280 (Mjup) 8.9049 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0400 (AU) 0.0400 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0074
Orbital Period(Observed/Estimated) 2.71 (Days Obs.) 3.60 (Days Est.)
Surface Gravity (G Earth) 0.6508
Star Radiation at Atmospheric Boundary: 1383553.0 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1530.7 (K)
Blackbody T 0.3(K) 1437.5 (K)
Blackbody T 0.7(K) 1163.1 (K)
Tidally Locked Blackbody T 0.1(K) 1820.3 (K)
Tidally Locked Blackbody T 0.3(K) 1709.5 (K)
Size Class: 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-234
Alternate Name : "2MASS J19263684+3829407, KIC 3342970, KOI-800, WISE J192636.84+382940.7"
Star Distance(LY) : 5670.4
Stellar Radius(Rsun) : 1.2 (Rsun Measured)
Stellar Mass(Msun) : 0.7 (Msun Measured) 1.2 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 5911 (K)
Spectral type : F8
UV portion[%]: 7.8
Visible portion[%]: 44.8
IR portion[%]: 47.4
Metalicity : 0.1
Absolute Magnitude: 3.2
Apparent Magnitude: 14.4
Right Ascension(RA) 291.6535
Declination (DEC) 38.4947
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors 0
Discovery Paper - Title
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Kepler-234+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-234%20b/
Kepler-234 b
Kepler-234 b

  • Kepler-234 b is an exoplanet orbiting the star Kepler-234, located about 5670.4 light-years (1738.6 pc) away from Solar System. Its discovery was publicly announced on 2014.
  • The host star Kepler-234 has apparent magnitude of 14.4, with absolute magnitude of 3.2.
  • It is 0.7 times more massive and 1.2 times bigger compared with our Sun. The surface temperature is 5911 with its spectral types of F8
  • In this planetary system, the extrasolar planet Kepler-234 b orbits around the star Kepler-234 every 2.7 days with its orbital distance of 0.04 AU ( 5983914.8 km)
  • (Projected orbit of Kepler-234 b around its host star Kepler-234)


  • The Star Kepler-234 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.920 AU ( 137693552.9 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.272 AU ( 190328473.7 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.939 AU ( 290018474.3 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.853 AU ( 426774889.9 km)
  • Radiation at Planetary Boundary of Kepler-234 b : 1383553.05 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-234)



  • Kopparapu Recent Venus for Star Kepler-234 distance : 0.946 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-234 distance : 1.198 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-234 distance : 1.157 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-234 distance : 1.269 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-234 distance : 2.109 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-234 distance : 2.225 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-234)



  • Original Kopparapu Recent Venus for Star Kepler-234 distance : 0.950 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-234 distance : 1.231 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-234 distance : 1.257 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-234 distance : 2.146 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-234 distance : 2.232 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-234)



    (Position in Stellar Map of star Kepler-234 and its Exoplanet Kepler-234 b)



    (Zoomed position in Stellar Map of star Kepler-234 and its Exoplanet Kepler-234 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-234*)
    *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