Imaginary Picture of Kepler-260 c

Display orbital revolution of Kepler-260 c around the hoststar Kepler-260
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Exoplanet Name : Kepler-260 c
Alternate Name : "2MASS J19274223+3800508 c, K00986.02, KIC 2854698 c, KOI-986 c, KOI-986.02, WISE J192742.22+380050.5 c"
Status : Confirmed
Radius (Rjup / Re): 0.1550 (Rjup) 1.7374 (Rearth)
Mass (Mjup / Me): 0.0139 (Mjup) 4.4098 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.3320 (AU) 0.3320 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.2082
Orbital Period(Observed/Estimated) 76.05 (Days Obs.) 74.48 (Days Est.)
Surface Gravity (G Earth) 1.4609
Star Radiation at Atmospheric Boundary: 9090.4 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 435.8 (K)
Blackbody T 0.3(K) 409.3 (K)
Blackbody T 0.7(K) 331.1 (K)
Tidally Locked Blackbody T 0.1(K) 518.3 (K)
Tidally Locked Blackbody T 0.3(K) 486.7 (K)
Size Class: super-Earth-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-260
Alternate Name : "2MASS J19274223+3800508, KIC 2854698, KOI-986, WISE J192742.22+380050.5"
Star Distance(LY) : 2045.3
Stellar Radius(Rsun) : 0.9 (Rsun Measured)
Stellar Mass(Msun) : 0.9 (Msun Measured) 0.8 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 5541 (K)
Spectral type : K0
UV portion[%]: 7.0
Visible portion[%]: 43.5
IR portion[%]: 49.4
Metalicity : -0.0
Absolute Magnitude: 3.9
Apparent Magnitude: 12.9
Right Ascension(RA) 291.9260
Declination (DEC) 38.0141
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-260+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-260%20c/
Kepler-260 c
Kepler-260 c

  • Kepler-260 c is an exoplanet orbiting the star Kepler-260, located about 2045.3 light-years (627.1 pc) away from Solar System. Its discovery was publicly announced on 2014.
  • The host star Kepler-260 has apparent magnitude of 12.9, with absolute magnitude of 3.9.
  • It is 0.9 times more massive and 0.9 times bigger compared with our Sun. The surface temperature is 5541 with its spectral types of K0
  • In this planetary system, the extrasolar planet Kepler-260 c orbits around the star Kepler-260 every 76.1 days with its orbital distance of 0.33 AU ( 49666493.1 km)
  • (Projected orbit of Kepler-260 c around its host star Kepler-260)


  • The Star Kepler-260 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.619 AU ( 92636917.1 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.856 AU ( 128048428.4 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.304 AU ( 195117467.8 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.919 AU ( 287123901.5 km)
  • Radiation at Planetary Boundary of Kepler-260 c : 9090.35 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-260)



  • Kopparapu Recent Venus for Star Kepler-260 distance : 0.651 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-260 distance : 0.824 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-260 distance : 0.796 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-260 distance : 0.873 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-260 distance : 1.465 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-260 distance : 1.546 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-260)



  • Original Kopparapu Recent Venus for Star Kepler-260 distance : 0.649 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-260 distance : 0.848 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-260 distance : 0.859 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-260 distance : 1.491 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-260 distance : 1.550 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-260)



    (Position in Stellar Map of star Kepler-260 and its Exoplanet Kepler-260 c)



    (Zoomed position in Stellar Map of star Kepler-260 and its Exoplanet Kepler-260 c (zoom level 3))

    (Synthetic Spectrum of star Kepler-260*)
    *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