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Exoplanet List of exoplanets
Size comparison
Earth Kepler-37c
The Earth seen from Apollo 17.jpg Exoplanet
Parent star
Star Kepler-37
Right ascension (α) 18h56m14.32s
Declination (δ) +44d31m05.3s
Mass (m) 0.80±0.07 M
Radius (r) 0.77±0.03 R
Temperature (T) 5417±75 K
Metallicity [Fe/H] -0.32±0.07
Age 5.66 Gyr
Physical characteristics
Radius (r) 0.742+0.065
Orbital elements
Semi-major axis (a) 0.1368+0.0011
Eccentricity (e) 0
Orbital period (P) 21.301886+0.000046
Inclination (i) 89.07+0.19
Discovery information
Discovery date 2013
Discovery method Transit
Discovery site Kepler Space Observatory
Discovery status Confirmed

Kepler-37c is an extrasolar planet (exoplanet) discovered by the Kepler space telescope in February 2013.[1] With an orbital period of 21 days,[2] it is located 210 light years away,[1] orbiting its parent star Kepler-37 in the constellation Lyra.[2] Its size is slightly smaller than Venus.[2]

See also[edit]


  1. ^ a b Harwood, William. "Kepler telescope spots smallest exoplanet yet". Spaceflight Now Inc. Retrieved 25 February 2013. 
  2. ^ a b c Black, Charles. "NASA's Kepler discovers small planet system". SEN TV LIMITED. Archived from the original on 23 February 2013. Retrieved 25 February 2013.