Imaginary Picture of Kepler-387 b

Display orbital revolution of Kepler-387 b around the hoststar Kepler-387
/
Exoplanet Name : Kepler-387 b
Alternate Name : "2MASS J19111156+4539241 b, K02443.01, KIC 9209624 b, KOI-2443 b, KOI-2443.01, WISE J191111.58+453924.2 b"
Status : Confirmed
Radius (Rjup / Re): 0.0920 (Rjup) 1.0312 (Rearth)
Mass (Mjup / Me): 0.0034 (Mjup) 1.0925 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0680 (AU) 0.0680 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0186
Orbital Period(Observed/Estimated) 6.79 (Days Obs.) 6.38 (Days Est.)
Surface Gravity (G Earth) 1.0273
Star Radiation at Atmospheric Boundary: 388448.4 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1114.2 (K)
Blackbody T 0.3(K) 1046.4 (K)
Blackbody T 0.7(K) 846.6 (K)
Tidally Locked Blackbody T 0.1(K) 1325.1 (K)
Tidally Locked Blackbody T 0.3(K) 1244.4 (K)
Size Class: 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-387
Alternate Name : "2MASS J19111156+4539241, KIC 9209624, KOI-2443, WISE J191111.58+453924.2"
Star Distance(LY) : 2611.5
Stellar Radius(Rsun) : 1.1 (Rsun Measured)
Stellar Mass(Msun) : 1.0 (Msun Measured) 0.9 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 5789 (K)
Spectral type : G3
UV portion[%]: 0.3
Visible portion[%]: 1.5
IR portion[%]: 98.2
Metalicity : -0.2
Absolute Magnitude: 3.4
Apparent Magnitude: 12.9
Right Ascension(RA) 287.7982
Declination (DEC) 45.6567
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-387+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-387%20b/
Kepler-387 b
Kepler-387 b
  • Kepler-387 b is an exoplanet orbiting the star Kepler-387, located about 2611.5 light-years (800.7 pc) away from Solar System. Its discovery was publicly announced on 2014.
  • The host star Kepler-387 has apparent magnitude of 12.9, with absolute magnitude of 3.4.
  • It is 1.0 times more massive and 1.1 times bigger compared with our Sun. The surface temperature is 5789 with its spectral types of G3
  • In this planetary system, the extrasolar planet Kepler-387 b orbits around the star Kepler-387 every 6.8 days with its orbital distance of 0.07 AU ( 10172655.2 km)
    • (Projected orbit of Kepler-387 b around its host star Kepler-387)


  • The Star Kepler-387 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.829 AU ( 124031305.7 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.146 AU ( 171443677.7 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.746 AU ( 261242224.4 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.570 AU ( 384429377.5 km)
  • Radiation at Planetary Boundary of Kepler-387 b : 388448.45 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-387)



  • Kopparapu Recent Venus for Star Kepler-387 distance : 0.859 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-387 distance : 1.087 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-387 distance : 1.050 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-387 distance : 1.151 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-387 distance : 1.920 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-387 distance : 2.025 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-387)



  • Original Kopparapu Recent Venus for Star Kepler-387 distance : 0.860 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-387 distance : 1.117 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-387 distance : 1.138 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-387 distance : 1.954 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-387 distance : 2.032 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-387)



    (Position in Stellar Map of star Kepler-387 and its Exoplanet Kepler-387 b)



    (Zoomed position in Stellar Map of star Kepler-387 and its Exoplanet Kepler-387 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-387*)
    *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