Imaginary Picture of Kepler-1649 b
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Exoplanet Name : Kepler-1649 b
Alternate Name : "KOI-3138, KIC 6444896"
Radius (Rjup / Re): 0.0964 (Rjup) 1.0805 (Rearth)
Mass (Mjup / Me): 0.0041 (Mjup) 1.2920 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0514 (AU) 0.0514 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0238
Orbital Period(Observed/Estimated) 8.69 (Days Obs.) 9.10 (Days Est.)
Star Radiation at Atmospheric Boundary: 345.0 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 192.4 (K)
Blackbody T 0.3(K) 180.6 (K)
Blackbody T 0.7(K) 146.2 (K)
Tidally Locked Blackbody T 0.1(K) 228.7 (K)
Tidally Locked Blackbody T 0.3(K) 214.8 (K)
Size Class: Earth-size
Mass Class:
Detection Type : Primary Transit
Mass Detection :
Radius Detection : Primary Transit
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Habitable
Star Name : Kepler-1649
Alternate Name : "KOI-3138, 2MASS J19300092+4149496, KIC 6444896"
Star Distance(LY) : 0.0
Stellar Radius(Rsun) : 0.1 (Rsun Measured)
Stellar Mass(Msun) : 0.2 (Msun Measured) 0.2 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 2703 (K)
Spectral type : M5V
Metalicity : -0.1
Absolute Magnitude: 25.0
Apparent Magnitude: 13.9
Right Ascension(RA) 292.5038
Declination (DEC) 41.8304
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-1649+&submit=SIMBAD+search
Open Exoplanet Database Link
Kepler-1649 b
Kepler-1649 b

  • Kepler-1649 b is an exoplanet orbiting the star Kepler-1649. Its discovery was publicly announced on 2017.
  • The host star Kepler-1649 has apparent magnitude of 13.9, with absolute magnitude of 25.0.
  • It is 0.2 times more massive and 0.1 times bigger compared with our Sun. The surface temperature is 2703 with its spectral types of M5V
  • In this planetary system, the extrasolar planet Kepler-1649 b orbits around the star Kepler-1649 every 8.7 days with its orbital distance of 0.05 AU ( 7689330.6 km)
  • (Projected orbit of Kepler-1649 b around its host star Kepler-1649)


  • The Star Kepler-1649 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.019 AU ( 2794037.4 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.026 AU ( 3862089.8 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.039 AU ( 5884970.2 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.058 AU ( 8659991.5 km)
  • Radiation at Planetary Boundary of Kepler-1649 b : 345.01 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-1649)



  • Kopparapu Recent Venus for Star Kepler-1649 distance : 0.021 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-1649 distance : 0.027 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-1649 distance : 0.026 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-1649 distance : 0.029 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1649 distance : 0.054 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-1649 distance : 0.057 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-1649)



  • Original Kopparapu Recent Venus for Star Kepler-1649 distance : 0.021 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-1649 distance : 0.028 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-1649 distance : 0.028 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1649 distance : 0.055 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-1649 distance : 0.058 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-1649)



    (Position in Stellar Map of star Kepler-1649 and its Exoplanet Kepler-1649 b)



    (Zoomed position in Stellar Map of star Kepler-1649 and its Exoplanet Kepler-1649 b (zoom level 3))