Imaginary Picture of Kepler-1647 (AB) b

Display orbital revolution of Kepler-1647 (AB) b around the hoststar Kepler-1647 (AB)
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Exoplanet Name : Kepler-1647 (AB) b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 1.0600 (Rjup) 11.8815 (Rearth)
Mass (Mjup / Me): 1.5200 (Mjup) 483.2658 (Mearth)
Semi Major Axis / Orbital Distance Calculated 2.7205 (AU) 2.7205 (AU Est.)
Eccentricity : 0.0581
Orbital Period(Yrs) 3.0323
Orbital Period(Observed/Estimated) 1107.59 (Days Obs.) 1107.87 (Days Est.)
Surface Gravity (G Earth) 3.4233
Star Radiation at Atmospheric Boundary: 789.6 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 236.6 (K)
Blackbody T 0.3(K) 222.2 (K)
Blackbody T 0.7(K) 179.8 (K)
Tidally Locked Blackbody T 0.1(K) 281.3 (K)
Tidally Locked Blackbody T 0.3(K) 264.2 (K)
Size Class: Jupiter-size
Mass Class:
Detection Type : Primary Transit
Mass Detection :
Radius Detection : Primary Transit
Habitability by Solar Eq. Astronomical Unit: Habitable
Habitability by Kopparapu: Not habitable
Star Name : Kepler-1647 (AB)
Alternate Name :
Star Distance(LY) : 3960.6
Stellar Radius(Rsun) : 1.8 (Rsun Measured)
Stellar Mass(Msun) : 2.2 (Msun Measured) 2.2 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 6210 (K)
Spectral type : F8
UV portion[%]: 7.8
Visible portion[%]: 44.8
IR portion[%]: 47.4
Metalicity : 0.0
Absolute Magnitude: 3.4
Apparent Magnitude: 13.8
Right Ascension(RA) 298.1501
Declination (DEC) 40.6561
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors
Discovery Paper - Title
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Kepler-1647+&submit=SIMBAD+search
Open Exoplanet Database Link
Kepler-1647 (AB) b
Kepler-1647 (AB) b

  • Kepler-1647 (AB) b is an exoplanet orbiting the star Kepler-1647 (AB), located about 3960.6 light-years (1214.3 pc) away from Solar System. Its discovery was publicly announced on 2015.
  • The host star Kepler-1647 (AB) has apparent magnitude of 13.8, with absolute magnitude of 3.4.
  • It is 2.2 times more massive and 1.8 times bigger compared with our Sun. The surface temperature is 6210 with its spectral types of F8
  • In this planetary system, the extrasolar planet Kepler-1647 (AB) b orbits around the star Kepler-1647 (AB) every 1107.6 days with its orbital distance of 2.72 AU ( 406981007.2 km)
  • (Projected orbit of Kepler-1647 (AB) b around its host star Kepler-1647 (AB))


  • The Star Kepler-1647 (AB) 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.495 AU ( 223714608.2 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 2.067 AU ( 309232052.2 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 3.150 AU ( 471201214.6 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 4.635 AU ( 693393229.3 km)
  • Radiation at Planetary Boundary of Kepler-1647 (AB) b : 789.55 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-1647 (AB))



  • Kopparapu Recent Venus for Star Kepler-1647 (AB) distance : 1.510 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-1647 (AB) distance : 1.912 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-1647 (AB) distance : 1.847 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-1647 (AB) distance : 2.024 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1647 (AB) distance : 3.343 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-1647 (AB) distance : 3.526 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-1647 (AB))



  • Original Kopparapu Recent Venus for Star Kepler-1647 (AB) distance : 1.526 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-1647 (AB) distance : 1.962 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-1647 (AB) distance : 2.019 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1647 (AB) distance : 3.403 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-1647 (AB) distance : 3.539 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-1647 (AB))



    (Position in Stellar Map of star Kepler-1647 (AB) and its Exoplanet Kepler-1647 (AB) b)



    (Zoomed position in Stellar Map of star Kepler-1647 (AB) and its Exoplanet Kepler-1647 (AB) b (zoom level 3))

    (Synthetic Spectrum of star Kepler-1647 (AB)*)
    *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