Imaginary Picture of Kepler-201 c

Display orbital revolution of Kepler-201 c around the hoststar Kepler-201
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Exoplanet Name : Kepler-201 c
Alternate Name : "2MASS J19343024+4116221 c, K00655.02, KIC 5966154 c, KOI-655 c, KOI-655.02, WISE J193430.25+411622.1 c"
Status : Confirmed
Radius (Rjup / Re): 0.2540 (Rjup) 2.8471 (Rearth)
Mass (Mjup / Me): 0.0220 (Mjup) 6.9808 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.5730 (AU) 0.5730 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.4158
Orbital Period(Observed/Estimated) 151.88 (Days Obs.) 146.46 (Days Est.)
Surface Gravity (G Earth) 0.8612
Star Radiation at Atmospheric Boundary: 8602.0 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 429.8 (K)
Blackbody T 0.3(K) 403.7 (K)
Blackbody T 0.7(K) 326.6 (K)
Tidally Locked Blackbody T 0.1(K) 511.2 (K)
Tidally Locked Blackbody T 0.3(K) 480.0 (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-201
Alternate Name : "2MASS J19343024+4116221, KIC 5966154, KOI-655, WISE J193430.25+411622.1"
Star Distance(LY) : 2075.3
Stellar Radius(Rsun) : 1.3 (Rsun Measured)
Stellar Mass(Msun) : 1.2 (Msun Measured) 1.1 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 6152 (K)
Spectral type : G0
UV portion[%]: 0.3
Visible portion[%]: 1.5
IR portion[%]: 98.2
Metalicity : -0.3
Absolute Magnitude: 3.0
Apparent Magnitude: 12.0
Right Ascension(RA) 293.6260
Declination (DEC) 41.2728
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors 0
Discovery Paper - Title
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Kepler-201+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-201%20c/
Kepler-201 c
Kepler-201 c

  • Kepler-201 c is an exoplanet orbiting the star Kepler-201, located about 2075.3 light-years (636.3 pc) away from Solar System. Its discovery was publicly announced on 2014.
  • The host star Kepler-201 has apparent magnitude of 12.0, with absolute magnitude of 3.0.
  • It is 1.2 times more massive and 1.3 times bigger compared with our Sun. The surface temperature is 6152 with its spectral types of G0
  • In this planetary system, the extrasolar planet Kepler-201 c orbits around the star Kepler-201 every 151.9 days with its orbital distance of 0.57 AU ( 85719579.9 km)
  • (Projected orbit of Kepler-201 c around its host star Kepler-201)


  • The Star Kepler-201 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.040 AU ( 155528512.9 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.437 AU ( 214981049.3 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.190 AU ( 327583544.0 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 3.222 AU ( 482053535.5 km)
  • Radiation at Planetary Boundary of Kepler-201 c : 8602.00 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-201)



  • Kopparapu Recent Venus for Star Kepler-201 distance : 1.053 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-201 distance : 1.334 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-201 distance : 1.288 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-201 distance : 1.412 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-201 distance : 2.335 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-201 distance : 2.463 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-201)



  • Original Kopparapu Recent Venus for Star Kepler-201 distance : 1.063 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-201 distance : 1.369 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-201 distance : 1.407 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-201 distance : 2.377 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-201 distance : 2.472 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-201)



    (Position in Stellar Map of star Kepler-201 and its Exoplanet Kepler-201 c)



    (Zoomed position in Stellar Map of star Kepler-201 and its Exoplanet Kepler-201 c (zoom level 3))

    (Synthetic Spectrum of star Kepler-201*)
    *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