Imaginary Picture of Kepler-149 d

Display orbital revolution of Kepler-149 d around the hoststar Kepler-149
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Exoplanet Name : Kepler-149 d
Alternate Name : "2MASS J19032487+3823028 d, K00401.02, KIC 3217264 d, KOI-401 d, KOI-401.02, WISE J190324.86+382302.7 d"
Status : Confirmed
Radius (Rjup / Re): 0.3530 (Rjup) 3.9568 (Rearth)
Mass (Mjup / Me): 0.0298 (Mjup) 9.4807 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.5710 (AU) 0.5710 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.4381
Orbital Period(Observed/Estimated) 160.02 (Days Obs.) 164.30 (Days Est.)
Surface Gravity (G Earth) 0.6056
Star Radiation at Atmospheric Boundary: 3257.6 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 337.2 (K)
Blackbody T 0.3(K) 316.7 (K)
Blackbody T 0.7(K) 256.2 (K)
Tidally Locked Blackbody T 0.1(K) 401.0 (K)
Tidally Locked Blackbody T 0.3(K) 376.6 (K)
Size Class: 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-149
Alternate Name : "2MASS J19032487+3823028, KIC 3217264, KOI-401, WISE J190324.86+382302.7"
Star Distance(LY) : 1861.8
Stellar Radius(Rsun) : 1.0 (Rsun Measured)
Stellar Mass(Msun) : 0.9 (Msun Measured) 1.0 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 5455 (K)
Spectral type : G7
UV portion[%]: 6.3
Visible portion[%]: 42.3
IR portion[%]: 51.4
Metalicity : 0.1
Absolute Magnitude: 3.9
Apparent Magnitude: 12.7
Right Ascension(RA) 285.8537
Declination (DEC) 38.3841
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors 0
Discovery Paper - Title
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Kepler-149+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-149%20d/
Kepler-149 d
Kepler-149 d

  • Kepler-149 d is an exoplanet orbiting the star Kepler-149, located about 1861.8 light-years (570.8 pc) away from Solar System. Its discovery was publicly announced on 2014.
  • The host star Kepler-149 has apparent magnitude of 12.7, with absolute magnitude of 3.9.
  • It is 0.9 times more massive and 1.0 times bigger compared with our Sun. The surface temperature is 5455 with its spectral types of G7
  • In this planetary system, the extrasolar planet Kepler-149 d orbits around the star Kepler-149 every 160.0 days with its orbital distance of 0.57 AU ( 85420384.2 km)
  • (Projected orbit of Kepler-149 d around its host star Kepler-149)


  • The Star Kepler-149 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.638 AU ( 95377056.2 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.881 AU ( 131836016.7 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.343 AU ( 200888914.2 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.976 AU ( 295616837.6 km)
  • Radiation at Planetary Boundary of Kepler-149 d : 3257.65 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-149)



  • Kopparapu Recent Venus for Star Kepler-149 distance : 0.673 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-149 distance : 0.853 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-149 distance : 0.824 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-149 distance : 0.903 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-149 distance : 1.520 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-149 distance : 1.604 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-149)



  • Original Kopparapu Recent Venus for Star Kepler-149 distance : 0.670 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-149 distance : 0.877 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-149 distance : 0.887 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-149 distance : 1.546 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-149 distance : 1.608 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-149)



    (Position in Stellar Map of star Kepler-149 and its Exoplanet Kepler-149 d)



    (Zoomed position in Stellar Map of star Kepler-149 and its Exoplanet Kepler-149 d (zoom level 3))

    (Synthetic Spectrum of star Kepler-149*)
    *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