The Kepler-37 system contains 4 exoplanets. It is located 208.48 light years away from the solar system.
| Mass | 0.87 solar masses |
| Radius | 0.79 solar radiae |
| Temperature | 5417 kelvin |
| Stellar Metallicity | -0.32 decimal exponent |
| Age | 10 billion years |
At 3.180 Earth masses, Kepler-37 b is a so called Super Earth. Super Earths could be terrestrial worlds like Earth, but they could also be ocean worlds or terrestrial worlds wrapped in a substantial atmosphere, in which case some refer to them as Mini Neptunes.
| Mass | 3.178 Earth masses |
| Density | 671.000 grams per cubic centimeter |
| Radius | 0.296 Earth radiae |
| Semi-major Axis | 0.1003 AU |
| Eccentricity | 0 |
| Orbital Period | 13.367 days |
| Discovery Method | Transit |
| Discovery Facility | Kepler |
| Discovery Telescope | 0.95 m Kepler Telescope |
| Discovery Instrument | Kepler CCD Array |
| Discovery Date | 2013-02 |
| Reference | Barclay et al. 2013 |
At more than 10 Earth masses, Kepler-37 c is an ice giant, a planet that is made up mostly of volatiles like water, amonia and methane, and enveloped by a dense hydrogen and helium atmosphere, much like Uranus and Neptune.
| Mass | 12.000 Earth masses |
| Density | NaN grams per cubic centimeter |
| Radius | 0.750 Earth radiae |
| Semi-major Axis | 0.1368 AU |
| Eccentricity | 0.09 |
| Orbital Period | 21.302 days |
| Discovery Method | Transit |
| Discovery Facility | Kepler |
| Discovery Telescope | 0.95 m Kepler Telescope |
| Discovery Instrument | Kepler CCD Array |
| Discovery Date | 2013-02 |
| Reference | Barclay et al. 2013 |
At more than 10 Earth masses, Kepler-37 d is an ice giant, a planet that is made up mostly of volatiles like water, amonia and methane, and enveloped by a dense hydrogen and helium atmosphere, much like Uranus and Neptune.
| Mass | 12.200 Earth masses |
| Density | NaN grams per cubic centimeter |
| Radius | 1.940 Earth radiae |
| Semi-major Axis | 0.2076 AU |
| Eccentricity | 0.15 |
| Orbital Period | 39.792 days |
| Discovery Method | Transit |
| Discovery Facility | Kepler |
| Discovery Telescope | 0.95 m Kepler Telescope |
| Discovery Instrument | Kepler CCD Array |
| Discovery Date | 2013-02 |
| Reference | Barclay et al. 2013 |
With a mass below 5 Earth masses, a density of 2.98, and a semi-major axis of 0.246 astronomical units, Kepler-37 e could, potentially, be an ocean world - a planet with no dry land.
| Mass | 0.028 Earth masses |
| Density | 2.980 grams per cubic centimeter |
| Radius | 0.370 Earth radiae |
| Semi-major Axis | 0.246 AU |
| Eccentricity | 0 |
| Orbital Period | 51.196 days |
| Discovery Method | Transit Timing Variations |
| Discovery Facility | Kepler |
| Discovery Telescope | 0.95 m Kepler Telescope |
| Discovery Instrument | Kepler CCD Array |
| Discovery Date | 2014-05 |
| Reference | Hadden et al. 2014 |