Imaginary Picture of Kepler-37 e

Display orbital revolution of Kepler-37 e around the hoststar Kepler-37
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Exoplanet Name : Kepler-37 e
Alternate Name : "2MASS J18561431+4431052 e, K00245.04, KIC 8478994 e, KOI-245 e, KOI-245.04"
Status : Confirmed
Radius (Rjup / Re): 0.0000 (Rjup) 0.0000 (Rearth)
Mass (Mjup / Me): 0.0000 (Mjup) 0.0000 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.2576 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.1402
Orbital Period(Observed/Estimated) 51.20 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) nan
Star Radiation at Atmospheric Boundary: 9363.7 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 439.0 (K)
Blackbody T 0.3(K) 412.3 (K)
Blackbody T 0.7(K) 333.6 (K)
Tidally Locked Blackbody T 0.1(K) 522.1 (K)
Tidally Locked Blackbody T 0.3(K) 490.3 (K)
Size Class: Asteroid-size
Mass Class:
Detection Type : TTV
Mass Detection :
Radius Detection :
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : Kepler-37
Alternate Name : "KOI-245 , KIC 8478994 , 2MASS J18561431+4431052 , 2MASS J18561431+4431052, KIC 8478994, KOI-245, WISE J185614.24+443105
Star Distance(LY) : 208.5
Stellar Radius(Rsun) : 0.8 (Rsun Measured)
Stellar Mass(Msun) : 0.9 (Msun Measured) 0.9 (Msun Estimated)
Star Age : 6.0 (GY)
Temperature : 5348 (K)
Spectral type : G7
UV portion[%]: 6.5
Visible portion[%]: 42.6
IR portion[%]: 50.9
Metalicity : -0.3
Absolute Magnitude: 6.3
Apparent Magnitude: 10.3
Right Ascension(RA) 284.0597
Declination (DEC) 44.5181
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-37 e
Kepler-37 e

  • Kepler-37 e is an exoplanet orbiting the star Kepler-37, located about 208.5 light-years (63.9 pc) away from Solar System. Its discovery was publicly announced on 2014.
  • The host star Kepler-37 has apparent magnitude of 10.3, with absolute magnitude of 6.3.
  • It is 0.9 times more massive and 0.8 times bigger compared with our Sun. The surface temperature is 5348 with its spectral types of G7
  • In this planetary system, the extrasolar planet Kepler-37 e orbits around the star Kepler-37 every 51.2 days with its orbital distance of 0.26 AU ( 38535621.4 km)
  • (Projected orbit of Kepler-37 e around its host star Kepler-37)


  • The Star Kepler-37 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.488 AU ( 72948378.4 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.674 AU ( 100833722.6 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.027 AU ( 153648278.8 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.511 AU ( 226100173.1 km)
  • Radiation at Planetary Boundary of Kepler-37 e : 9363.67 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-37)



  • Kopparapu Recent Venus for Star Kepler-37 distance : 0.518 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-37 distance : 0.656 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-37 distance : 0.634 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-37 distance : 0.695 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-37 distance : 1.174 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-37 distance : 1.238 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-37)



  • Original Kopparapu Recent Venus for Star Kepler-37 distance : 0.515 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-37 distance : 0.675 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-37 distance : 0.681 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-37 distance : 1.194 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-37 distance : 1.242 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-37)



    (Position in Stellar Map of star Kepler-37 and its Exoplanet Kepler-37 e)



    (Zoomed position in Stellar Map of star Kepler-37 and its Exoplanet Kepler-37 e (zoom level 3))

    (Synthetic Spectrum of star Kepler-37*)
    *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