Imaginary Picture of Kepler-103 c
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Exoplanet Name : Kepler-103 c
Alternate Name :
Radius (Rjup / Re): 0.4866 (Rjup) 5.4539 (Rearth)
Mass (Mjup / Me): 0.1840 (Mjup) 58.4911 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.6679 (AU) 0.6679 (AU Est.)
Eccentricity : 0.1000
Orbital Period(Yrs) 0.4917
Orbital Period(Observed/Estimated) 179.61 (Days Obs.) 190.18 (Days Est.)
Star Radiation at Atmospheric Boundary: 7424.1 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 414.3 (K)
Blackbody T 0.3(K) 389.1 (K)
Blackbody T 0.7(K) 314.8 (K)
Tidally Locked Blackbody T 0.1(K) 492.7 (K)
Tidally Locked Blackbody T 0.3(K) 462.7 (K)
Size Class: sub-Jupiter-size
Mass Class:
Detection Type : Primary Transit
Mass Detection : Spectrum
Radius Detection :
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : Kepler-103
Alternate Name : "KOI-108, KIC 4914423"
Star Distance(LY) : 1331.2
Stellar Radius(Rsun) : 1.5 (Rsun Measured)
Stellar Mass(Msun) : 1.1 (Msun Measured) 1.2 (Msun Estimated)
Star Age : 6.7 (GY)
Temperature : 5886 (K)
Spectral type : G2
Metalicity : 0.1
Absolute Magnitude: 4.2
Apparent Magnitude: 12.3
Right Ascension(RA) 288.8595
Declination (DEC) 40.0645
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors "Geoffrey W. Marcy, Howard Isaacson, Andrew W. Howard, Jason F. Rowe, Jon M. Jenkins, Stephen T. Bryson, David W. Latham, Steve B. Howell, Thomas N. Gautier III, Natalie M. Batalha, Leslie A. Rogers, David Ciardi, Debra A. Fischer, Ronald L. Gilliland, Hans Kjeldsen, J_rgen Christensen-Dalsgaard, Daniel Huber, William J. Chaplin, Sarbani Basu, Lars A. Buchhave, Samuel N. Quinn, William J. Borucki, David G. Koch, Roger Hunter, Douglas A. Caldwell, Jeffrey Van Cleve, Rea Kolbl, Lauren M. Weiss, Erik Petigura, Sara Seager, Timothy Morton, John Asher Johnson, Sarah Ballard, Chris Burke, William D. Cochran, Michael Endl, Phillip MacQueen, Mark E. Everett, Jack J. Lissauer, Eric B. Ford, Guillermo Torres, Francois Fressin, Timothy M. Brown, Jason H. Steffen, David Charbonneau, Gibor S. Basri, et al. (57 additional authors not shown) "
Discovery Paper - Title "Masses, Radii, and Orbits of Small Kepler Planets: The Transition from Gaseous to Rocky Planets"
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-103%21c/
Kepler-103 c
Kepler-103 c

  • Kepler-103 c is an exoplanet orbiting the star Kepler-103, located about 1331.2 light-years (408.2 pc) away from Solar System. Its discovery was publicly announced on 2014.
  • The host star Kepler-103 has apparent magnitude of 12.3, with absolute magnitude of 4.2.
  • It is 1.1 times more massive and 1.5 times bigger compared with our Sun. The surface temperature is 5886 with its spectral types of G2
  • In this planetary system, the extrasolar planet Kepler-103 c orbits around the star Kepler-103 every 179.6 days with its orbital distance of 0.67 AU ( 99916417.8 km)
  • (Projected orbit of Kepler-103 c around its host star Kepler-103)


  • The Star Kepler-103 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.126 AU ( 168418535.7 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.556 AU ( 232798429.3 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.371 AU ( 354733288.1 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 3.489 AU ( 522005573.3 km)
  • Radiation at Planetary Boundary of Kepler-103 c : 7424.13 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-103)



  • Kopparapu Recent Venus for Star Kepler-103 distance : 1.159 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-103 distance : 1.468 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-103 distance : 1.418 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-103 distance : 1.554 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-103 distance : 2.585 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-103 distance : 2.727 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-103)



  • Original Kopparapu Recent Venus for Star Kepler-103 distance : 1.163 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-103 distance : 1.508 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-103 distance : 1.539 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-103 distance : 2.631 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-103 distance : 2.736 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-103)



    (Position in Stellar Map of star Kepler-103 and its Exoplanet Kepler-103 c)



    (Zoomed position in Stellar Map of star Kepler-103 and its Exoplanet Kepler-103 c (zoom level 3))