Imaginary Picture of Kepler-418 b

Display orbital revolution of Kepler-418 b around the hoststar Kepler-418
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Exoplanet Name : Kepler-418 b
Alternate Name : "2MASS J19374404+3821196 b, K01089.01, KIC 3247268 b, KOI-1089 b, KOI-1089.01"
Status : Confirmed
Radius (Rjup / Re): 1.2000 (Rjup) 13.4508 (Rearth)
Mass (Mjup / Me): 1.1000 (Mjup) 349.7318 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.3807 (AU Est.)
Eccentricity : 0.2000
Orbital Period(Yrs) 0.2373
Orbital Period(Observed/Estimated) 86.68 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 1.9330
Star Radiation at Atmospheric Boundary: 11950.4 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 466.6 (K)
Blackbody T 0.3(K) 438.2 (K)
Blackbody T 0.7(K) 354.6 (K)
Tidally Locked Blackbody T 0.1(K) 554.9 (K)
Tidally Locked Blackbody T 0.3(K) 521.1 (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-418
Alternate Name : "2MASS J19374404+3821196, KIC 3247268, KOI-1089, WISE J193744.04+382119.7"
Star Distance(LY) : 3268.5
Stellar Radius(Rsun) : 1.1 (Rsun Measured)
Stellar Mass(Msun) : 1.0 (Msun Measured) 1.0 (Msun Estimated)
Star Age : 7.0 (GY)
Temperature : 5848 (K)
Spectral type : G2
UV portion[%]: 0.3
Visible portion[%]: 1.5
IR portion[%]: 98.2
Metalicity : -0.1
Absolute Magnitude: 5.0
Apparent Magnitude: 15.0
Right Ascension(RA) 294.4335
Declination (DEC) 38.3554
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors "B. Tingley, H. Parviainen, D. Gandolfi, H. J. Deeg, E. Pall_, P. Monta__s Rodriguez, F. Murgas, R. Alonso, H. Bruntt, M. Fridlund"
Discovery Paper - Title "Confirmation of an exoplanet using the transit color signature: Kepler-418b, a blended giant planet in a multiplanet system"
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Kepler-418+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-418%20b/
Kepler-418 b
Kepler-418 b

  • Kepler-418 b is an exoplanet orbiting the star Kepler-418, located about 3268.5 light-years (1002.1 pc) away from Solar System. Its discovery was publicly announced on 2014.
  • The host star Kepler-418 has apparent magnitude of 15.0, with absolute magnitude of 5.0.
  • It is 1.0 times more massive and 1.1 times bigger compared with our Sun. The surface temperature is 5848 with its spectral types of G2
  • In this planetary system, the extrasolar planet Kepler-418 b orbits around the star Kepler-418 every 86.7 days with its orbital distance of 0.38 AU ( 56957171.3 km)
  • (Projected orbit of Kepler-418 b around its host star Kepler-418)


  • The Star Kepler-418 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.814 AU ( 121806519.2 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.125 AU ( 168368441.4 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.715 AU ( 256556244.8 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.524 AU ( 377533753.3 km)
  • Radiation at Planetary Boundary of Kepler-418 b : 11950.43 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-418)



  • Kopparapu Recent Venus for Star Kepler-418 distance : 0.840 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-418 distance : 1.064 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-418 distance : 1.028 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-418 distance : 1.127 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-418 distance : 1.876 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-418 distance : 1.978 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-418)



  • Original Kopparapu Recent Venus for Star Kepler-418 distance : 0.843 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-418 distance : 1.093 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-418 distance : 1.115 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-418 distance : 1.909 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-418 distance : 1.985 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-418)



    (Position in Stellar Map of star Kepler-418 and its Exoplanet Kepler-418 b)



    (Zoomed position in Stellar Map of star Kepler-418 and its Exoplanet Kepler-418 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-418*)
    *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