Imaginary Picture of Kepler-1764 b

Display orbital revolution of Kepler-1764 b around the hoststar Kepler-1764
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Exoplanet Name : Kepler-1764 b
Alternate Name : "KOI-1685 b, KOI-1685.01"
Status : Confirmed
Radius (Rjup / Re): 0.4064 (Rjup) 4.5550 (Rearth)
Mass (Mjup / Me): 0.0658 (Mjup) 20.9140 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.3488 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.1929
Orbital Period(Observed/Estimated) 70.47 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 1.0080
Star Radiation at Atmospheric Boundary: 29056.4 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 582.7 (K)
Blackbody T 0.3(K) 547.2 (K)
Blackbody T 0.7(K) 442.8 (K)
Tidally Locked Blackbody T 0.1(K) 693.0 (K)
Tidally Locked Blackbody T 0.3(K) 650.8 (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-1764
Alternate Name : "6049190, KOI-1685"
Star Distance(LY) : 5030.9
Stellar Radius(Rsun) : 1.4 (Rsun Measured)
Stellar Mass(Msun) : 1.1 (Msun Measured) 1.1 (Msun Estimated)
Star Age : 0.2 (GY)
Temperature : 6085 (K)
Spectral type : F9/G0IV-V
UV portion[%]: 0.3
Visible portion[%]: 1.5
IR portion[%]: 98.2
Metalicity : 0.0
Absolute Magnitude: 4.0
Apparent Magnitude: 14.9
Right Ascension(RA) 293.8799
Declination (DEC) 41.3938
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-1764 b
Kepler-1764 b

  • Kepler-1764 b is an exoplanet orbiting the star Kepler-1764, located about 5030.9 light-years (1542.5 pc) away from Solar System. Its discovery was publicly announced on 2017.
  • The host star Kepler-1764 has apparent magnitude of 14.9, with absolute magnitude of 4.0.
  • It is 1.1 times more massive and 1.4 times bigger compared with our Sun. The surface temperature is 6085 with its spectral types of F9/G0IV-V
  • In this planetary system, the extrasolar planet Kepler-1764 b orbits around the star Kepler-1764 every 70.5 days with its orbital distance of 0.35 AU ( 52179038.9 km)
  • (Projected orbit of Kepler-1764 b around its host star Kepler-1764)


  • The Star Kepler-1764 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.163 AU ( 173999211.3 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.608 AU ( 240512381.5 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.450 AU ( 366487644.1 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 3.605 AU ( 539302623.1 km)
  • Radiation at Planetary Boundary of Kepler-1764 b : 29056.40 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-1764)



  • Kopparapu Recent Venus for Star Kepler-1764 distance : 1.183 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-1764 distance : 1.498 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-1764 distance : 1.447 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-1764 distance : 1.586 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1764 distance : 2.627 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-1764 distance : 2.770 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-1764)



  • Original Kopparapu Recent Venus for Star Kepler-1764 distance : 1.192 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-1764 distance : 1.538 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-1764 distance : 1.578 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1764 distance : 2.673 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-1764 distance : 2.780 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-1764)



    (Position in Stellar Map of star Kepler-1764 and its Exoplanet Kepler-1764 b)



    (Zoomed position in Stellar Map of star Kepler-1764 and its Exoplanet Kepler-1764 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-1764*)
    *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