Imaginary Picture of Kepler-386 b

Display orbital revolution of Kepler-386 b around the hoststar Kepler-386
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Exoplanet Name : Kepler-386 b
Alternate Name : "2MASS J19192612+4841378 b, K02442.02, KIC 11080405 b, KOI-2442 b, KOI-2442.02, WISE J191926.15+484137.8 b"
Status : Confirmed
Radius (Rjup / Re): 0.1240 (Rjup) 1.3899 (Rearth)
Mass (Mjup / Me): 0.0101 (Mjup) 3.2191 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0960 (AU) 0.0960 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0337
Orbital Period(Observed/Estimated) 12.31 (Days Obs.) 12.63 (Days Est.)
Surface Gravity (G Earth) 1.6663
Star Radiation at Atmospheric Boundary: 60142.3 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 698.9 (K)
Blackbody T 0.3(K) 656.4 (K)
Blackbody T 0.7(K) 531.1 (K)
Tidally Locked Blackbody T 0.1(K) 831.2 (K)
Tidally Locked Blackbody T 0.3(K) 780.6 (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-386
Alternate Name : "2MASS J19192612+4841378, KIC 11080405, KOI-2442, WISE J191926.15+484137.8"
Star Distance(LY) : 2882.4
Stellar Radius(Rsun) : 0.8 (Rsun Measured)
Stellar Mass(Msun) : 0.7 (Msun Measured) 0.8 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 5058 (K)
Spectral type : K0
UV portion[%]: 3.6
Visible portion[%]: 37.8
IR portion[%]: 58.6
Metalicity : -0.2
Absolute Magnitude: 4.5
Apparent Magnitude: 14.2
Right Ascension(RA) 289.8589
Declination (DEC) 48.6939
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-386+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-386%20b/
Kepler-386 b
Kepler-386 b

  • Kepler-386 b is an exoplanet orbiting the star Kepler-386, located about 2882.4 light-years (883.8 pc) away from Solar System. Its discovery was publicly announced on 2014.
  • The host star Kepler-386 has apparent magnitude of 14.2, with absolute magnitude of 4.5.
  • It is 0.7 times more massive and 0.8 times bigger compared with our Sun. The surface temperature is 5058 with its spectral types of K0
  • In this planetary system, the extrasolar planet Kepler-386 b orbits around the star Kepler-386 every 12.3 days with its orbital distance of 0.10 AU ( 14361395.6 km)
  • (Projected orbit of Kepler-386 b around its host star Kepler-386)


  • The Star Kepler-386 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.461 AU ( 68899613.6 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.637 AU ( 95237271.6 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.970 AU ( 145120526.0 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.428 AU ( 213551211.3 km)
  • Radiation at Planetary Boundary of Kepler-386 b : 60142.25 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-386)



  • Kopparapu Recent Venus for Star Kepler-386 distance : 0.497 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-386 distance : 0.629 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-386 distance : 0.608 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-386 distance : 0.667 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-386 distance : 1.138 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-386 distance : 1.200 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-386)



  • Original Kopparapu Recent Venus for Star Kepler-386 distance : 0.492 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-386 distance : 0.648 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-386 distance : 0.651 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-386 distance : 1.157 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-386 distance : 1.203 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-386)



    (Position in Stellar Map of star Kepler-386 and its Exoplanet Kepler-386 b)



    (Zoomed position in Stellar Map of star Kepler-386 and its Exoplanet Kepler-386 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-386*)
    *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