Imaginary Picture of Kepler-686 b

Display orbital revolution of Kepler-686 b around the hoststar Kepler-686
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Exoplanet Name : Kepler-686 b
Alternate Name : "2MASS J19005131+3901389 b, K00809.01, KIC 3935914 b, KOI-809 b, KOI-809.01, WISE J190051.31+390138.9 b"
Status : Confirmed
Radius (Rjup / Re): 1.0840 (Rjup) 12.1506 (Rearth)
Mass (Mjup / Me): 1.2486 (Mjup) 396.9713 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.0262 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0044
Orbital Period(Observed/Estimated) 1.59 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 2.6889
Star Radiation at Atmospheric Boundary: 2832188.5 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1830.9 (K)
Blackbody T 0.3(K) 1719.4 (K)
Blackbody T 0.7(K) 1391.2 (K)
Tidally Locked Blackbody T 0.1(K) 2177.4 (K)
Tidally Locked Blackbody T 0.3(K) 2044.8 (K)
Size Class: Jupiter-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-686
Alternate Name : "2MASS J19005131+3901389, KIC 3935914, KOI-809, WISE J190051.31+390138.9"
Star Distance(LY) : 4878.4
Stellar Radius(Rsun) : 1.1 (Rsun Measured)
Stellar Mass(Msun) : 0.9 (Msun Measured) 0.9 (Msun Estimated)
Star Age : 4.5 (GY)
Temperature : 5935 (K)
Spectral type : G5
UV portion[%]: 7.4
Visible portion[%]: 44.1
IR portion[%]: 48.4
Metalicity : -0.1
Absolute Magnitude: 3.5
Apparent Magnitude: 14.3
Right Ascension(RA) 285.2138
Declination (DEC) 39.0275
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors "Timothy D. Morton, Stephen T. Bryson, Jeffrey L. Coughlin, Jason F. Rowe, Ganesh Ravichandran, Erik A. Petigura, Michael R. Haas, and Natalie M. Batalha"
Discovery Paper - Title FALSE POSITIVE PROBABILITIES FOR ALL KEPLER OBJECTS OF INTEREST: 1284 NEWLY VALIDATED PLANETS AND 588 LIKELY FALSE POSITIVES
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-686%20b/
Kepler-686 b
Kepler-686 b

  • Kepler-686 b is an exoplanet orbiting the star Kepler-686, located about 4878.4 light-years (1495.7 pc) away from Solar System. Its discovery was publicly announced on 2016.
  • The host star Kepler-686 has apparent magnitude of 14.3, with absolute magnitude of 3.5.
  • It is 0.9 times more massive and 1.1 times bigger compared with our Sun. The surface temperature is 5935 with its spectral types of G5
  • In this planetary system, the extrasolar planet Kepler-686 b orbits around the star Kepler-686 every 1.6 days with its orbital distance of 0.03 AU ( 3914732.8 km)
  • (Projected orbit of Kepler-686 b around its host star Kepler-686)


  • The Star Kepler-686 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.862 AU ( 128882366.2 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.191 AU ( 178149111.1 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.815 AU ( 271459821.0 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.670 AU ( 399465018.5 km)
  • Radiation at Planetary Boundary of Kepler-686 b : 2832188.48 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-686)



  • Kopparapu Recent Venus for Star Kepler-686 distance : 0.884 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-686 distance : 1.120 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-686 distance : 1.082 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-686 distance : 1.186 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-686 distance : 1.970 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-686 distance : 2.078 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-686)



  • Original Kopparapu Recent Venus for Star Kepler-686 distance : 0.888 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-686 distance : 1.150 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-686 distance : 1.176 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-686 distance : 2.005 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-686 distance : 2.085 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-686)



    (Position in Stellar Map of star Kepler-686 and its Exoplanet Kepler-686 b)



    (Zoomed position in Stellar Map of star Kepler-686 and its Exoplanet Kepler-686 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-686*)
    *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