Imaginary Picture of Kepler-1664 b

Display orbital revolution of Kepler-1664 b around the hoststar Kepler-1664
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Exoplanet Name : Kepler-1664 b
Alternate Name : "2MASS J19072463+4915420 b, K00349.01, KIC 11394027 b, KOI-349 b, KOI-349.01, WISE J190724.63+491541.8 b"
Status : Confirmed
Radius (Rjup / Re): 0.2710 (Rjup) 3.0376 (Rearth)
Mass (Mjup / Me): 0.0233 (Mjup) 7.4143 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.1189 (AU) 0.1189 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0394
Orbital Period(Observed/Estimated) 14.39 (Days Obs.) 14.40 (Days Est.)
Surface Gravity (G Earth) 0.8035
Star Radiation at Atmospheric Boundary: 142304.2 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 866.9 (K)
Blackbody T 0.3(K) 814.1 (K)
Blackbody T 0.7(K) 658.7 (K)
Tidally Locked Blackbody T 0.1(K) 1030.9 (K)
Tidally Locked Blackbody T 0.3(K) 968.1 (K)
Size Class: sub-Neptune-size
Mass Class:
Detection Type : Primary Transit
Mass Detection :
Radius Detection :
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : Kepler-1664
Alternate Name : "11394027, 2MASS J19072463+4915420, KIC 11394027, KOI-349, WISE J190724.63+491541.8"
Star Distance(LY) : 2044.0
Stellar Radius(Rsun) : 1.1 (Rsun Measured)
Stellar Mass(Msun) : 1.1 (Msun Measured) 1.1 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 5945 (K)
Spectral type : G1
UV portion[%]: 7.8
Visible portion[%]: 44.8
IR portion[%]: 47.4
Metalicity : 0.2
Absolute Magnitude: 4.4
Apparent Magnitude: 13.4
Right Ascension(RA) 286.8527
Declination (DEC) 49.2617
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors
Discovery Paper - Title
Discovery Paper - Journal
Discovery Paper - URL
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Kepler-1664&submit=SIMBAD+search
Open Exoplanet Database Link
Kepler-1664 b
Kepler-1664 b

  • Kepler-1664 b is an exoplanet orbiting the star Kepler-1664, located about 2044.0 light-years (626.7 pc) away from Solar System. Its discovery was publicly announced on 2020.
  • The host star Kepler-1664 has apparent magnitude of 13.4, with absolute magnitude of 4.4.
  • It is 1.1 times more massive and 1.1 times bigger compared with our Sun. The surface temperature is 5945 with its spectral types of G1
  • In this planetary system, the extrasolar planet Kepler-1664 b orbits around the star Kepler-1664 every 14.4 days with its orbital distance of 0.12 AU ( 17787186.8 km)
  • (Projected orbit of Kepler-1664 b around its host star Kepler-1664)


  • The Star Kepler-1664 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.877 AU ( 131264245.9 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.213 AU ( 181441491.3 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.848 AU ( 276476679.8 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.720 AU ( 406847546.1 km)
  • Radiation at Planetary Boundary of Kepler-1664 b : 142304.22 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-1664)



  • Kopparapu Recent Venus for Star Kepler-1664 distance : 0.900 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-1664 distance : 1.140 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-1664 distance : 1.101 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-1664 distance : 1.207 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1664 distance : 2.005 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-1664 distance : 2.115 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-1664)



  • Original Kopparapu Recent Venus for Star Kepler-1664 distance : 0.905 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-1664 distance : 1.171 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-1664 distance : 1.197 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1664 distance : 2.040 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-1664 distance : 2.122 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-1664)



    (Position in Stellar Map of star Kepler-1664 and its Exoplanet Kepler-1664 b)



    (Zoomed position in Stellar Map of star Kepler-1664 and its Exoplanet Kepler-1664 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-1664*)
    *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