Imaginary Picture of Kepler-1747 b

Display orbital revolution of Kepler-1747 b around the hoststar Kepler-1747
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Exoplanet Name : Kepler-1747 b
Alternate Name : "KOI-1395 b, KOI-1395.01"
Status : Confirmed
Radius (Rjup / Re): 0.3805 (Rjup) 4.2650 (Rearth)
Mass (Mjup / Me): 0.0540 (Mjup) 17.1686 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0660 (AU) 0.0660 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0171
Orbital Period(Observed/Estimated) 6.23 (Days Obs.) 6.60 (Days Est.)
Surface Gravity (G Earth) 0.9438
Star Radiation at Atmospheric Boundary: 194556.4 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 937.4 (K)
Blackbody T 0.3(K) 880.3 (K)
Blackbody T 0.7(K) 712.2 (K)
Tidally Locked Blackbody T 0.1(K) 1114.7 (K)
Tidally Locked Blackbody T 0.3(K) 1046.8 (K)
Size Class: Neptune-size
Mass Class:
Detection Type : Primary Transit
Mass Detection :
Radius Detection : Primary Transit
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : Kepler-1747
Alternate Name : "8935810, KOI-1395"
Star Distance(LY) : 4309.8
Stellar Radius(Rsun) : 1.0 (Rsun Measured)
Stellar Mass(Msun) : 0.9 (Msun Measured) 1.0 (Msun Estimated)
Star Age : 0.7 (GY)
Temperature : 5174 (K)
Spectral type : G9/K0V
UV portion[%]: 4.7
Visible portion[%]: 39.7
IR portion[%]: 55.5
Metalicity : 0.2
Absolute Magnitude: 5.6
Apparent Magnitude: 16.2
Right Ascension(RA) 284.2097
Declination (DEC) 45.2581
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-1747 b
Kepler-1747 b

  • Kepler-1747 b is an exoplanet orbiting the star Kepler-1747, located about 4309.8 light-years (1321.4 pc) away from Solar System. Its discovery was publicly announced on 2017.
  • The host star Kepler-1747 has apparent magnitude of 16.2, with absolute magnitude of 5.6.
  • It is 0.9 times more massive and 1.0 times bigger compared with our Sun. The surface temperature is 5174 with its spectral types of G9/K0V
  • In this planetary system, the extrasolar planet Kepler-1747 b orbits around the star Kepler-1747 every 6.2 days with its orbital distance of 0.07 AU ( 9873459.5 km)
  • (Projected orbit of Kepler-1747 b around its host star Kepler-1747)


  • The Star Kepler-1747 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.570 AU ( 85196636.4 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.787 AU ( 117764016.1 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.200 AU ( 179446299.4 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.765 AU ( 264063090.5 km)
  • Radiation at Planetary Boundary of Kepler-1747 b : 194556.44 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-1747)



  • Kopparapu Recent Venus for Star Kepler-1747 distance : 0.611 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-1747 distance : 0.773 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-1747 distance : 0.747 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-1747 distance : 0.820 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1747 distance : 1.392 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-1747 distance : 1.469 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-1747)



  • Original Kopparapu Recent Venus for Star Kepler-1747 distance : 0.606 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-1747 distance : 0.796 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-1747 distance : 0.801 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1747 distance : 1.416 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-1747 distance : 1.472 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-1747)



    (Position in Stellar Map of star Kepler-1747 and its Exoplanet Kepler-1747 b)



    (Zoomed position in Stellar Map of star Kepler-1747 and its Exoplanet Kepler-1747 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-1747*)
    *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