Imaginary Picture of Kepler-39 b

Display orbital revolution of Kepler-39 b around the hoststar Kepler-39
/
Exoplanet Name : Kepler-39 b
Alternate Name : "KOI-423 b, 2MASS J19475046+4602034 b, K00423.01, KIC 9478990 b, KOI-423.01, WISE J194750.47+460203.5 b"
Status : Confirmed
Radius (Rjup / Re): 1.2400 (Rjup) 13.8992 (Rearth)
Mass (Mjup / Me): 20.1000 (Mjup) 6390.5538 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.1640 (AU) 0.1640 (AU Est.)
Eccentricity : 0.1120
Orbital Period(Yrs) 0.0577
Orbital Period(Observed/Estimated) 21.09 (Days Obs.) 21.36 (Days Est.)
Surface Gravity (G Earth) 33.0797
Star Radiation at Atmospheric Boundary: 106794.4 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 806.8 (K)
Blackbody T 0.3(K) 757.7 (K)
Blackbody T 0.7(K) 613.1 (K)
Tidally Locked Blackbody T 0.1(K) 959.5 (K)
Tidally Locked Blackbody T 0.3(K) 901.1 (K)
Size Class: Super-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-39
Alternate Name : "KOI-423, 2MASS J19475046+4602034, KIC 9478990, WISE J194750.47+460203.5"
Star Distance(LY) : 3446.8
Stellar Radius(Rsun) : 1.2 (Rsun Measured)
Stellar Mass(Msun) : 1.3 (Msun Measured) 1.3 (Msun Estimated)
Star Age : 2.1 (GY)
Temperature : 6260 (K)
Spectral type : F7 V
UV portion[%]: 0.3
Visible portion[%]: 1.5
IR portion[%]: 98.2
Metalicity : 0.1
Absolute Magnitude: 4.2
Apparent Magnitude: 14.3
Right Ascension(RA) 296.9603
Declination (DEC) 46.0343
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors "F. Bouchy, A.S. Bonomo, A. Santerne, C. Moutou, M. Deleuil, R.F. Diaz, A. Eggenberger, D. Ehrenreich, C. Gry, T. Guillot, M. Havel, G. Hebrard, S. Udry"
Discovery Paper - Title SOPHIE velocimetry of Kepler transit candidates III. KOI-423b: an 18 Mjup transiting companion around an F7IV star
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Kepler-39+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/KOI-423%20b/
Kepler-39 b
Kepler-39 b

  • Kepler-39 b is an exoplanet orbiting the star Kepler-39, located about 3446.8 light-years (1056.8 pc) away from Solar System. Its discovery was publicly announced on 2011.
  • The host star Kepler-39 has apparent magnitude of 14.3, with absolute magnitude of 4.2.
  • It is 1.3 times more massive and 1.2 times bigger compared with our Sun. The surface temperature is 6260 with its spectral types of F7 V
  • In this planetary system, the extrasolar planet Kepler-39 b orbits around the star Kepler-39 every 21.1 days with its orbital distance of 0.16 AU ( 24534050.8 km)
  • (Projected orbit of Kepler-39 b around its host star Kepler-39)


  • The Star Kepler-39 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.048 AU ( 156846104.4 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.449 AU ( 216802305.0 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.208 AU ( 330358734.6 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 3.250 AU ( 486137350.1 km)
  • Radiation at Planetary Boundary of Kepler-39 b : 106794.37 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-39)



  • Kopparapu Recent Venus for Star Kepler-39 distance : 1.055 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-39 distance : 1.337 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-39 distance : 1.291 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-39 distance : 1.414 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-39 distance : 2.334 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-39 distance : 2.462 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-39)



  • Original Kopparapu Recent Venus for Star Kepler-39 distance : 1.068 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-39 distance : 1.371 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-39 distance : 1.413 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-39 distance : 2.376 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-39 distance : 2.471 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-39)



    (Position in Stellar Map of star Kepler-39 and its Exoplanet Kepler-39 b)



    (Zoomed position in Stellar Map of star Kepler-39 and its Exoplanet Kepler-39 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-39*)
    *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