Imaginary Picture of Kepler-1859 c

Display orbital revolution of Kepler-1859 c around the hoststar Kepler-1859
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Exoplanet Name : Kepler-1859 c
Alternate Name : "KOI-2579 c, KOI-2579.02"
Status : Confirmed
Radius (Rjup / Re): 0.1532 (Rjup) 1.7170 (Rearth)
Mass (Mjup / Me): 0.0137 (Mjup) 4.3616 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0473 (AU) 0.0473 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0098
Orbital Period(Observed/Estimated) 3.60 (Days Obs.) 3.67 (Days Est.)
Surface Gravity (G Earth) 1.4795
Star Radiation at Atmospheric Boundary: 866815.3 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1361.8 (K)
Blackbody T 0.3(K) 1278.9 (K)
Blackbody T 0.7(K) 1034.8 (K)
Tidally Locked Blackbody T 0.1(K) 1619.5 (K)
Tidally Locked Blackbody T 0.3(K) 1520.9 (K)
Size Class: super-Earth-size
Mass Class:
Detection Type : Primary Transit
Mass Detection :
Radius Detection : Primary Transit
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : Kepler-1859
Alternate Name : "KIC 9896018, KOI-2579"
Star Distance(LY) : 4342.0
Stellar Radius(Rsun) : 1.2 (Rsun Measured)
Stellar Mass(Msun) : 1.1 (Msun Measured) 1.1 (Msun Estimated)
Star Age : 2.5 (GY)
Temperature : 5845 (K)
Spectral type : G1V
UV portion[%]: 0.3
Visible portion[%]: 1.5
IR portion[%]: 98.2
Metalicity : 0.1
Absolute Magnitude: 4.6
Apparent Magnitude: 15.2
Right Ascension(RA) 293.9887
Declination (DEC) 46.7180
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors
Discovery Paper - Title
Discovery Paper - Journal
Discovery Paper - URL
SIMBAD LINK
Open Exoplanet Database Link
Kepler-1859 c
Kepler-1859 c

  • Kepler-1859 c is an exoplanet orbiting the star Kepler-1859, located about 4342.0 light-years (1331.2 pc) away from Solar System. Its discovery was publicly announced on 2017.
  • The host star Kepler-1859 has apparent magnitude of 15.2, with absolute magnitude of 4.6.
  • It is 1.1 times more massive and 1.2 times bigger compared with our Sun. The surface temperature is 5845 with its spectral types of G1V
  • In this planetary system, the extrasolar planet Kepler-1859 c orbits around the star Kepler-1859 every 3.6 days with its orbital distance of 0.05 AU ( 7075979.3 km)
  • (Projected orbit of Kepler-1859 c around its host star Kepler-1859)


  • The Star Kepler-1859 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.861 AU ( 128878396.4 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.191 AU ( 178143623.8 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.815 AU ( 271451459.6 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.670 AU ( 399452714.4 km)
  • Radiation at Planetary Boundary of Kepler-1859 c : 866815.27 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-1859)



  • Kopparapu Recent Venus for Star Kepler-1859 distance : 0.889 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-1859 distance : 1.126 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-1859 distance : 1.088 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-1859 distance : 1.192 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1859 distance : 1.985 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-1859 distance : 2.094 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-1859)



  • Original Kopparapu Recent Venus for Star Kepler-1859 distance : 0.892 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-1859 distance : 1.157 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-1859 distance : 1.180 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1859 distance : 2.020 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-1859 distance : 2.101 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-1859)



    (Position in Stellar Map of star Kepler-1859 and its Exoplanet Kepler-1859 c)



    (Zoomed position in Stellar Map of star Kepler-1859 and its Exoplanet Kepler-1859 c (zoom level 3))

    (Synthetic Spectrum of star Kepler-1859*)
    *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