Imaginary Picture of Kepler-37 b

Display orbital revolution of Kepler-37 b around the hoststar Kepler-37
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Exoplanet Name : Kepler-37 b
Alternate Name : "2MASS J18561431+4431052 b, K00245.03, KIC 8478994 b, KOI-245 b, KOI-245.03, WISE J185614.24+443105.9 b"
Status : Confirmed
Radius (Rjup / Re): 0.0260 (Rjup) 0.2914 (Rearth)
Mass (Mjup / Me): 0.0100 (Mjup) 3.1794 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.1003 (AU) 0.1003 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0366
Orbital Period(Observed/Estimated) 13.37 (Days Obs.) 12.44 (Days Est.)
Surface Gravity (G Earth) 37.4336
Star Radiation at Atmospheric Boundary: 61761.5 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 703.6 (K)
Blackbody T 0.3(K) 660.7 (K)
Blackbody T 0.7(K) 534.6 (K)
Tidally Locked Blackbody T 0.1(K) 836.7 (K)
Tidally Locked Blackbody T 0.3(K) 785.8 (K)
Size Class: Moon-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-37
Alternate Name : "KOI-245 , KIC 8478994 , 2MASS J18561431+4431052 , 2MASS J18561431+4431052, KIC 8478994, KOI-245, WISE J185614.24+443105
Star Distance(LY) : 213.3
Stellar Radius(Rsun) : 0.8 (Rsun Measured)
Stellar Mass(Msun) : 0.9 (Msun Measured) 0.8 (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: 6.2
Apparent Magnitude: 10.3
Right Ascension(RA) 284.0597
Declination (DEC) 44.5181
Hubble Space Telescope Guide Star Catalog (GSC) ID 03131-01199
Discovered by
Discovery Paper - Authors "Thomas Barclay, Jason F. Rowe, Jack J. Lissauer, Daniel Huber, Fran_ois Fressin, Steve B. Howell, Stephen T. Bryson, William J. Chaplin, Jean-Michel D_sert, Eric D. Lopez, Geoffrey W. Marcy, Fergal Mullally, Darin Ragozzine, Guillermo Torres, Elisabeth R. Adams, Eric Agol, David Barrado, Sarbani Basu, Timothy R. Bedding, Lars A. Buchhave, David Charbonneau, Jessie L. Christiansen, J_rgen Christensen-Dalsgaard, David Ciardi, William D. Cochran "
Discovery Paper - Title A sub-Mercury-sized exoplanet
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Kepler-37+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-37%20b/
Kepler-37 b
Kepler-37 b

  • Kepler-37 b is an exoplanet orbiting the star Kepler-37, located about 213.3 light-years (65.4 pc) away from Solar System. Its discovery was publicly announced on 2013.
  • The host star Kepler-37 has apparent magnitude of 10.3, with absolute magnitude of 6.2.
  • 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 b orbits around the star Kepler-37 every 13.4 days with its orbital distance of 0.10 AU ( 15004666.4 km)
  • (Projected orbit of Kepler-37 b 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 b : 61761.52 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 b)



    (Zoomed position in Stellar Map of star Kepler-37 and its Exoplanet Kepler-37 b (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