Imaginary Picture of Kepler-452 b
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Exoplanet Name : Kepler-452 b
Alternate Name :
Radius (Rjup / Re): 0.1450 (Rjup) 1.6253 (Rearth)
Mass (Mjup / Me): 0.0130 (Mjup) 4.1446 (Mearth)
Semi Major Axis / Orbital Distance Calculated 1.0460 (AU) 1.0460 (AU Est.)
Eccentricity : 0.0350
Orbital Period(Yrs) 1.0536
Orbital Period(Observed/Estimated) 384.84 (Days Obs.) 383.71 (Days Est.)
Star Radiation at Atmospheric Boundary: 1517.0 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 278.5 (K)
Blackbody T 0.3(K) 261.6 (K)
Blackbody T 0.7(K) 211.6 (K)
Tidally Locked Blackbody T 0.1(K) 331.2 (K)
Tidally Locked Blackbody T 0.3(K) 311.1 (K)
Size Class: super-Earth-size
Mass Class:
Detection Type : Primary Transit
Mass Detection :
Radius Detection : Primary Transit
Habitability by Solar Eq. Astronomical Unit: Habitable
Habitability by Kopparapu: Habitable
Star Name : Kepler-452
Alternate Name :
Star Distance(LY) : 1402.5
Stellar Radius(Rsun) : 1.1 (Rsun Measured)
Stellar Mass(Msun) : 1.0 (Msun Measured) 1.0 (Msun Estimated)
Star Age : 6.0 (GY)
Temperature : 5757 (K)
Spectral type : G2
Metalicity : 0.2
Absolute Magnitude: 5.5
Apparent Magnitude: 13.7
Right Ascension(RA) 296.0037
Declination (DEC) 44.2776
Hubble Space Telescope Guide Star Catalog (GSC) ID 0
Discovered by
Discovery Paper - Authors "Jon M. Jenkins, Joseph D. Twicken, Natalie M. Batalha, Douglas A. Caldwell, William D. Cochran, Michael Endl, David W. Latham, Gilbert A. Esquerdo, Shawn Seader, Allyson Bieryla, Erik Petigura, David R. Ciardi, Geoffrey W. Marcy, Howard Isaacson, Daniel Huber, Jason F. Rowe, Guillermo Torres, Stephen T. Bryson, Lars Buchhave, Ivan Ramirez, Angie Wolfgang, Jie Li, Jennifer R. Campbell, Peter Tenenbaum, Dwight Sanderfer Christopher E. Henze, Joseph H. Catanzarite, Ronald L. Gilliland, and William J. Borucki"
Discovery Paper - Title DISCOVERY AND VALIDATION OF Kepler-452b: A 1.6-R_ SUPER EARTH EXOPLANET IN THE HABITABLE ZONE OF A G2 STAR
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Kepler-452+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-452%20b/
Kepler-452 b
Kepler-452 b

  • Kepler-452 b is an exoplanet orbiting the star Kepler-452, located about 1402.5 light-years (430.0 pc) away from Solar System. Its discovery was publicly announced on 2015.
  • The host star Kepler-452 has apparent magnitude of 13.7, with absolute magnitude of 5.5.
  • It is 1.0 times more massive and 1.1 times bigger compared with our Sun. The surface temperature is 5757 with its spectral types of G2
  • In this planetary system, the extrasolar planet Kepler-452 b orbits around the star Kepler-452 every 384.8 days with its orbital distance of 1.05 AU ( 156479372.8 km)
  • (Projected orbit of Kepler-452 b around its host star Kepler-452)


  • The Star Kepler-452 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.797 AU ( 119226707.3 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.102 AU ( 164802467.2 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.679 AU ( 251122489.2 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.470 AU ( 369537743.9 km)
  • Radiation at Planetary Boundary of Kepler-452 b : 1516.95 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-452)



  • Kopparapu Recent Venus for Star Kepler-452 distance : 0.827 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-452 distance : 1.047 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-452 distance : 1.012 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-452 distance : 1.109 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-452 distance : 1.851 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-452 distance : 1.952 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-452)



  • Original Kopparapu Recent Venus for Star Kepler-452 distance : 0.828 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-452 distance : 1.076 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-452 distance : 1.095 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-452 distance : 1.883 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-452 distance : 1.958 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-452)



    (Position in Stellar Map of star Kepler-452 and its Exoplanet Kepler-452 b)



    (Zoomed position in Stellar Map of star Kepler-452 and its Exoplanet Kepler-452 b (zoom level 3))