Imaginary Picture of Kepler-249 d

Display orbital revolution of Kepler-249 d around the hoststar Kepler-249
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Exoplanet Name : Kepler-249 d
Alternate Name : "2MASS J19475641+4339306 d, K00899.03, KIC 7907423 d, KOI-899 d, KOI-899.03, WISE J194756.45+433930.9 d"
Status : Confirmed
Radius (Rjup / Re): 0.1400 (Rjup) 1.5693 (Rearth)
Mass (Mjup / Me): 0.0126 (Mjup) 4.0115 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0970 (AU) 0.0970 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0421
Orbital Period(Observed/Estimated) 15.37 (Days Obs.) 11.38 (Days Est.)
Surface Gravity (G Earth) 1.6290
Star Radiation at Atmospheric Boundary: 5518.7 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 384.7 (K)
Blackbody T 0.3(K) 361.3 (K)
Blackbody T 0.7(K) 292.3 (K)
Tidally Locked Blackbody T 0.1(K) 457.5 (K)
Tidally Locked Blackbody T 0.3(K) 429.6 (K)
Size Class: super-Earth-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-249
Alternate Name : "2MASS J19475641+4339306, KIC 7907423, KOI-899, WISE J194756.45+433930.9"
Star Distance(LY) : 620.9
Stellar Radius(Rsun) : 0.5 (Rsun Measured)
Stellar Mass(Msun) : 0.9 (Msun Measured) 0.5 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 3565 (K)
Spectral type : M2 V
UV portion[%]: 0.2
Visible portion[%]: 10.8
IR portion[%]: 89.0
Metalicity : 0.2
Absolute Magnitude: 6.4
Apparent Magnitude: 12.8
Right Ascension(RA) 296.9851
Declination (DEC) 43.6585
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-249+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-249%20d/
Kepler-249 d
Kepler-249 d

  • Kepler-249 d is an exoplanet orbiting the star Kepler-249, located about 620.9 light-years (190.4 pc) away from Solar System. Its discovery was publicly announced on 2014.
  • The host star Kepler-249 has apparent magnitude of 12.8, with absolute magnitude of 6.4.
  • It is 0.9 times more massive and 0.5 times bigger compared with our Sun. The surface temperature is 3565 with its spectral types of M2 V
  • In this planetary system, the extrasolar planet Kepler-249 d orbits around the star Kepler-249 every 15.4 days with its orbital distance of 0.10 AU ( 14510993.5 km)
  • (Projected orbit of Kepler-249 d around its host star Kepler-249)


  • The Star Kepler-249 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.141 AU ( 21088570.5 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.195 AU ( 29149915.5 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.297 AU ( 44418020.4 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.437 AU ( 65363062.9 km)
  • Radiation at Planetary Boundary of Kepler-249 d : 5518.73 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-249)



  • Kopparapu Recent Venus for Star Kepler-249 distance : 0.159 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-249 distance : 0.201 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-249 distance : 0.194 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-249 distance : 0.214 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-249 distance : 0.391 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-249 distance : 0.412 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-249)



  • Original Kopparapu Recent Venus for Star Kepler-249 distance : 0.158 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-249 distance : 0.208 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-249 distance : 0.209 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-249 distance : 0.397 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-249 distance : 0.413 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-249)



    (Position in Stellar Map of star Kepler-249 and its Exoplanet Kepler-249 d)



    (Zoomed position in Stellar Map of star Kepler-249 and its Exoplanet Kepler-249 d (zoom level 3))

    (Synthetic Spectrum of star Kepler-249*)
    *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