Imaginary Picture of Kepler-432 c
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Exoplanet Name : Kepler-432 c
Alternate Name : KOI-1299 c
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 2.6300 (Mjup) 836.1769 (Mearth)
Semi Major Axis / Orbital Distance Calculated 1.1880 (AU) 1.1880 (AU Est.)
Eccentricity : 0.6400
Orbital Period(Yrs) 1.1252
Orbital Period(Observed/Estimated) 411.00 (Days Obs.) 407.05 (Days Est.)
Star Radiation at Atmospheric Boundary: 8720.4 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 431.3 (K)
Blackbody T 0.3(K) 405.0 (K)
Blackbody T 0.7(K) 327.7 (K)
Tidally Locked Blackbody T 0.1(K) 512.9 (K)
Tidally Locked Blackbody T 0.3(K) 481.7 (K)
Size Class: Jupiter-size
Mass Class:
Detection Type : Radial Velocity
Mass Detection : Radial Velocity
Radius Detection :
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : Kepler-432
Alternate Name :
Star Distance(LY) : 2833.9
Stellar Radius(Rsun) : 4.0 (Rsun Measured)
Stellar Mass(Msun) : 1.4 (Msun Measured) 1.3 (Msun Estimated)
Star Age : 3.6 (GY)
Temperature : 5002 (K)
Spectral type : K2III
Metalicity : -0.0
Absolute Magnitude: 3.3
Apparent Magnitude: 13.0
Right Ascension(RA) 293.2822
Declination (DEC) 48.2858
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors "Samuel N. Quinn, Timothy R. White, David W. Latham, William J. Chaplin, Rasmus Handberg, Daniel Huber, David M. Kipping, Matthew J. Payne, Chen Jiang, Victor Silva Aguirre, Dennis Stello, David H. Sliski, David R. Ciardi, Lars A. Buchhave, Timothy R. Bedding, Guy R. Davies, Saskia Hekker, Hans Kjeldsen, Mark E. Everett, Steve B. Howell, Sarbani Basu, Tiago L. Campante, J_rgen Christensen-Dalsgaard, Yvonne P. Elsworth, Christoffer Karoff, Steven D. Kawaler, Mikkel N. Lund, Mia Lundkvist, Gilbert A. Esquerdo, Michael L. Calkins, Perry Berlind"
Discovery Paper - Title Kepler-432: a red giant interacting with one of its two long period giant planets
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=KOI-1299+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/KOI-1299%20c/
Kepler-432 c
Kepler-432 c

  • Kepler-432 c is an exoplanet orbiting the star Kepler-432, located about 2833.9 light-years (868.9 pc) away from Solar System. Its discovery was publicly announced on 2014.
  • The host star Kepler-432 has apparent magnitude of 13.0, with absolute magnitude of 3.3.
  • It is 1.4 times more massive and 4.0 times bigger compared with our Sun. The surface temperature is 5002 with its spectral types of K2III
  • In this planetary system, the extrasolar planet Kepler-432 c orbits around the star Kepler-432 every 411.0 days with its orbital distance of 1.19 AU ( 177722270.4 km)
  • (Projected orbit of Kepler-432 c around its host star Kepler-432)


  • The Star Kepler-432 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 2.170 AU ( 324668052.6 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 3.000 AU ( 448776094.6 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 4.571 AU ( 683835454.2 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 6.727 AU ( 1006293827.8 km)
  • Radiation at Planetary Boundary of Kepler-432 c : 8720.37 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-432)



  • Kopparapu Recent Venus for Star Kepler-432 distance : 2.348 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-432 distance : 2.972 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-432 distance : 2.871 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-432 distance : 3.150 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-432 distance : 5.387 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-432 distance : 5.682 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-432)



  • Original Kopparapu Recent Venus for Star Kepler-432 distance : 2.323 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-432 distance : 3.063 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-432 distance : 3.073 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-432 distance : 5.477 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-432 distance : 5.696 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-432)



    (Position in Stellar Map of star Kepler-432 and its Exoplanet Kepler-432 c)



    (Zoomed position in Stellar Map of star Kepler-432 and its Exoplanet Kepler-432 c (zoom level 3))