Imaginary Picture of Kepler-103 c

Display orbital revolution of Kepler-103 c around the hoststar Kepler-103
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Exoplanet Name : Kepler-103 c
Alternate Name : "2MASS J19155629+4003522 c, K00108.02, KIC 4914423 c, KOI-108 c, KOI-108.02, WISE J191556.29+400352.2 c"
Status : Confirmed
Radius (Rjup / Re): 0.4590 (Rjup) 5.1449 (Rearth)
Mass (Mjup / Me): 0.1140 (Mjup) 36.2449 (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.) 190.96 (Days Est.)
Surface Gravity (G Earth) 1.3693
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, 2MASS J19155629+4003522, WISE J191556.29+400352.2"
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 : 5.7 (GY)
Temperature : 5886 (K)
Spectral type : G2
UV portion[%]: 7.8
Visible portion[%]: 44.8
IR portion[%]: 47.4
Metalicity : 0.1
Absolute Magnitude: 4.2
Apparent Magnitude: 12.3
Right Ascension(RA) 288.9846
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 et al. The Astrophysical Journal, Supplement Series 210:20(70pp) 2014 February, doi:10.1088/0067-0049/210/2/20"
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))

    (Synthetic Spectrum of star Kepler-103*)
    *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