Imaginary Picture of Kepler-47 (AB) d

Display orbital revolution of Kepler-47 (AB) d around the hoststar Kepler-47 A
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Exoplanet Name : Kepler-47 (AB) d
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.6281 (Rjup) 7.0404 (Rearth)
Mass (Mjup / Me): 0.0598 (Mjup) 19.0254 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.6992 (AU) 0.6992 (AU Est.)
Eccentricity : 0.0240
Orbital Period(Yrs) 0.5129
Orbital Period(Observed/Estimated) 187.35 (Days Obs.) 209.10 (Days Est.)
Surface Gravity (G Earth) 0.3838
Star Radiation at Atmospheric Boundary: 2352.0 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 310.8 (K)
Blackbody T 0.3(K) 291.9 (K)
Blackbody T 0.7(K) 236.2 (K)
Tidally Locked Blackbody T 0.1(K) 369.6 (K)
Tidally Locked Blackbody T 0.3(K) 347.1 (K)
Size Class: sub-Jupiter-size
Mass Class:
Detection Type : Timing
Mass Detection : Theoretical
Radius Detection : Primary Transit
Habitability by Solar Eq. Astronomical Unit: Habitable
Habitability by Kopparapu: Not habitable
Star Name : Kepler-47 A
Alternate Name :
Star Distance(LY) : 0.0
Stellar Radius(Rsun) : 1.0 (Rsun Measured)
Stellar Mass(Msun) : 1.0 (Msun Measured) 1.3 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 5636 (K)
Spectral type : G5
UV portion[%]: 7.4
Visible portion[%]: 44.1
IR portion[%]: 48.5
Metalicity : 0.0
Absolute Magnitude: 25.0
Apparent Magnitude: 22.0
Right Ascension(RA) 295.2979
Declination (DEC) 46.9200
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors
Discovery Paper - Title
Discovery Paper - Journal
Discovery Paper - URL
SIMBAD LINK
Open Exoplanet Database Link
Kepler-47 (AB) d
Kepler-47 (AB) d

  • Kepler-47 (AB) d is an exoplanet orbiting the star Kepler-47 A. Its discovery was publicly announced on 2013.
  • The host star Kepler-47 A has apparent magnitude of 22.0, with absolute magnitude of 25.0.
  • It is 1.0 times more massive and 1.0 times bigger compared with our Sun. The surface temperature is 5636 with its spectral types of G5
  • In this planetary system, the extrasolar planet Kepler-47 (AB) d orbits around the star Kepler-47 A every 187.3 days with its orbital distance of 0.70 AU ( 104598831.2 km)
  • (Projected orbit of Kepler-47 (AB) d around its host star Kepler-47 A)


  • The Star Kepler-47 A 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.663 AU ( 99237797.1 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.917 AU ( 137172569.6 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.397 AU ( 209020639.8 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.056 AU ( 307583028.0 km)
  • Radiation at Planetary Boundary of Kepler-47 (AB) d : 2352.01 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-47 A)



  • Kopparapu Recent Venus for Star Kepler-47 A distance : 0.693 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-47 A distance : 0.878 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-47 A distance : 0.848 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-47 A distance : 0.930 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-47 A distance : 1.557 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-47 A distance : 1.642 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-47 A)



  • Original Kopparapu Recent Venus for Star Kepler-47 A distance : 0.692 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-47 A distance : 0.903 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-47 A distance : 0.916 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-47 A distance : 1.584 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-47 A distance : 1.647 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-47 A)



    (Position in Stellar Map of star Kepler-47 A and its Exoplanet Kepler-47 (AB) d)



    (Zoomed position in Stellar Map of star Kepler-47 A and its Exoplanet Kepler-47 (AB) d (zoom level 3))

    (Synthetic Spectrum of star Kepler-47 A*)
    *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