Imaginary Picture of Kepler-1768 b

Display orbital revolution of Kepler-1768 b around the hoststar Kepler-1768
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Exoplanet Name : Kepler-1768 b
Alternate Name : "KOI-1754 b, KOI-1754.01"
Status : Confirmed
Radius (Rjup / Re): 0.1992 (Rjup) 2.2331 (Rearth)
Mass (Mjup / Me): 0.0175 (Mjup) 5.5692 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.1286 (AU) 0.1286 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0414
Orbital Period(Observed/Estimated) 15.14 (Days Obs.) 15.25 (Days Est.)
Surface Gravity (G Earth) 1.1168
Star Radiation at Atmospheric Boundary: 159393.6 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 891.8 (K)
Blackbody T 0.3(K) 837.5 (K)
Blackbody T 0.7(K) 677.6 (K)
Tidally Locked Blackbody T 0.1(K) 1060.5 (K)
Tidally Locked Blackbody T 0.3(K) 995.9 (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-1768
Alternate Name : "8651389, KOI-1754"
Star Distance(LY) : 2063.8
Stellar Radius(Rsun) : 1.2 (Rsun Measured)
Stellar Mass(Msun) : 1.2 (Msun Measured) 1.2 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 6264 (K)
Spectral type : F7V
UV portion[%]: 0.3
Visible portion[%]: 1.5
IR portion[%]: 98.2
Metalicity : 0.1
Absolute Magnitude: 4.6
Apparent Magnitude: 13.6
Right Ascension(RA) 299.9572
Declination (DEC) 44.7719
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-1768 b
Kepler-1768 b

  • Kepler-1768 b is an exoplanet orbiting the star Kepler-1768, located about 2063.8 light-years (632.8 pc) away from Solar System. Its discovery was publicly announced on 2017.
  • The host star Kepler-1768 has apparent magnitude of 13.6, with absolute magnitude of 4.6.
  • It is 1.2 times more massive and 1.2 times bigger compared with our Sun. The surface temperature is 6264 with its spectral types of F7V
  • In this planetary system, the extrasolar planet Kepler-1768 b orbits around the star Kepler-1768 every 15.1 days with its orbital distance of 0.13 AU ( 19238286.2 km)
  • (Projected orbit of Kepler-1768 b around its host star Kepler-1768)


  • The Star Kepler-1768 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.004 AU ( 150256093.3 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.388 AU ( 207693187.5 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.116 AU ( 316478455.4 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 3.113 AU ( 465711911.2 km)
  • Radiation at Planetary Boundary of Kepler-1768 b : 159393.58 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-1768)



  • Kopparapu Recent Venus for Star Kepler-1768 distance : 1.011 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-1768 distance : 1.280 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-1768 distance : 1.236 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-1768 distance : 1.355 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1768 distance : 2.236 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-1768 distance : 2.358 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-1768)



  • Original Kopparapu Recent Venus for Star Kepler-1768 distance : 1.023 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-1768 distance : 1.313 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-1768 distance : 1.353 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1768 distance : 2.276 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-1768 distance : 2.367 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-1768)



    (Position in Stellar Map of star Kepler-1768 and its Exoplanet Kepler-1768 b)



    (Zoomed position in Stellar Map of star Kepler-1768 and its Exoplanet Kepler-1768 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-1768*)
    *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