Imaginary Picture of Kepler-321 c
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Exoplanet Name : Kepler-321 c
Alternate Name :
Radius (Rjup / Re): 0.2070 (Rjup) 2.3203 (Rearth)
Mass (Mjup / Me): 0.0182 (Mjup) 5.7712 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.1100 (AU) 0.1100 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0358
Orbital Period(Observed/Estimated) 13.09 (Days Obs.) 13.26 (Days Est.)
Star Radiation at Atmospheric Boundary: 155797.7 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 886.7 (K)
Blackbody T 0.3(K) 832.7 (K)
Blackbody T 0.7(K) 673.8 (K)
Tidally Locked Blackbody T 0.1(K) 1054.5 (K)
Tidally Locked Blackbody T 0.3(K) 990.3 (K)
Size Class: sub-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-321
Alternate Name :
Star Distance(LY) : 0.0
Stellar Radius(Rsun) : 1.2 (Rsun Measured)
Stellar Mass(Msun) : 1.0 (Msun Measured) 1.0 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 5740 (K)
Spectral type : G3
Metalicity : 0.0
Absolute Magnitude: 25.0
Apparent Magnitude: 11.6
Right Ascension(RA) 294.4537
Declination (DEC) 44.1458
Hubble Space Telescope Guide Star Catalog (GSC) ID 0
Discovered by
Discovery Paper - Authors 0
Discovery Paper - Title
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK 0
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-321%20c/
Kepler-321 c
Kepler-321 c

  • Kepler-321 c is an exoplanet orbiting the star Kepler-321. Its discovery was publicly announced on 2014.
  • The host star Kepler-321 has apparent magnitude of 11.6, with absolute magnitude of 25.0.
  • It is 1.0 times more massive and 1.2 times bigger compared with our Sun. The surface temperature is 5740 with its spectral types of G3
  • In this planetary system, the extrasolar planet Kepler-321 c orbits around the star Kepler-321 every 13.1 days with its orbital distance of 0.11 AU ( 16455765.8 km)
  • (Projected orbit of Kepler-321 c around its host star Kepler-321)


  • The Star Kepler-321 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.849 AU ( 127065853.7 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.174 AU ( 175638216.1 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.789 AU ( 267633772.7 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.633 AU ( 393834820.8 km)
  • Radiation at Planetary Boundary of Kepler-321 c : 155797.66 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-321)



  • Kopparapu Recent Venus for Star Kepler-321 distance : 0.882 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-321 distance : 1.117 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-321 distance : 1.079 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-321 distance : 1.183 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-321 distance : 1.975 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-321 distance : 2.083 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-321)



  • Original Kopparapu Recent Venus for Star Kepler-321 distance : 0.883 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-321 distance : 1.148 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-321 distance : 1.168 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-321 distance : 2.010 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-321 distance : 2.090 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-321)



    (Position in Stellar Map of star Kepler-321 and its Exoplanet Kepler-321 c)



    (Zoomed position in Stellar Map of star Kepler-321 and its Exoplanet Kepler-321 c (zoom level 3))