Imaginary Picture of Kepler-1847 b

Display orbital revolution of Kepler-1847 b around the hoststar Kepler-1847
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Exoplanet Name : Kepler-1847 b
Alternate Name : "KOI-2507 b, KOI-2507.01"
Status : Confirmed
Radius (Rjup / Re): 0.2449 (Rjup) 2.7451 (Rearth)
Mass (Mjup / Me): 0.0212 (Mjup) 6.7480 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0989 (AU) 0.0989 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0305
Orbital Period(Observed/Estimated) 11.13 (Days Obs.) 11.13 (Days Est.)
Surface Gravity (G Earth) 0.8955
Star Radiation at Atmospheric Boundary: 140416.2 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 864.0 (K)
Blackbody T 0.3(K) 811.4 (K)
Blackbody T 0.7(K) 656.5 (K)
Tidally Locked Blackbody T 0.1(K) 1027.4 (K)
Tidally Locked Blackbody T 0.3(K) 964.9 (K)
Size Class: sub-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-1847
Alternate Name : "KIC 8379705, KOI-2507"
Star Distance(LY) : 5524.6
Stellar Radius(Rsun) : 1.0 (Rsun Measured)
Stellar Mass(Msun) : 1.0 (Msun Measured) 1.0 (Msun Estimated)
Star Age : 0.4 (GY)
Temperature : 5892 (K)
Spectral type : G1V
UV portion[%]: 0.3
Visible portion[%]: 1.5
IR portion[%]: 98.2
Metalicity : -0.2
Absolute Magnitude: 4.9
Apparent Magnitude: 16.0
Right Ascension(RA) 296.6014
Declination (DEC) 44.3253
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-1847 b
Kepler-1847 b

  • Kepler-1847 b is an exoplanet orbiting the star Kepler-1847, located about 5524.6 light-years (1693.9 pc) away from Solar System. Its discovery was publicly announced on 2017.
  • The host star Kepler-1847 has apparent magnitude of 16.0, with absolute magnitude of 4.9.
  • It is 1.0 times more massive and 1.0 times bigger compared with our Sun. The surface temperature is 5892 with its spectral types of G1V
  • In this planetary system, the extrasolar planet Kepler-1847 b orbits around the star Kepler-1847 every 11.1 days with its orbital distance of 0.10 AU ( 14795229.4 km)
  • (Projected orbit of Kepler-1847 b around its host star Kepler-1847)


  • The Star Kepler-1847 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.725 AU ( 108457758.0 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.002 AU ( 149916965.0 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.527 AU ( 228440278.1 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.247 AU ( 336159876.5 km)
  • Radiation at Planetary Boundary of Kepler-1847 b : 140416.21 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-1847)



  • Kopparapu Recent Venus for Star Kepler-1847 distance : 0.746 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-1847 distance : 0.945 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-1847 distance : 0.913 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-1847 distance : 1.001 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1847 distance : 1.664 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-1847 distance : 1.755 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-1847)



  • Original Kopparapu Recent Venus for Star Kepler-1847 distance : 0.749 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-1847 distance : 0.971 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-1847 distance : 0.991 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1847 distance : 1.693 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-1847 distance : 1.761 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-1847)



    (Position in Stellar Map of star Kepler-1847 and its Exoplanet Kepler-1847 b)



    (Zoomed position in Stellar Map of star Kepler-1847 and its Exoplanet Kepler-1847 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-1847*)
    *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