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| Kepler-37c is similar in size to ]. | Kepler-37c is similar in size to ]. | ||
| Kepler-37d is about three times the size of Earth and was the first |
Kepler-37d is about three times the size of Earth and was the first exoplanet discovered to be "unquestionably rocky." | ||
| ==References== | ==References== | ||
Revision as of 21:16, 20 February 2013
Diagram showing star positions and boundaries of the constellation and its surroundings Location of Kepler-37 in (circled) |
Kepler-37 is a star in the constellation Lyra that is host to exoplanets Kepler-37b, Kepler-37c and Kepler-37d.
Planetary system
Kepler-37b is the smallest known exoplanet, at 3865 kilometers in diameter, as of February 2013. It orbits Kepler-37 once every 13 days and is too small and too close to its star to maintain an atmosphere.
Kepler-37c is similar in size to Venus.
Kepler-37d is about three times the size of Earth and was the first exoplanet discovered to be "unquestionably rocky."
References
- Nature,
- Bad Astronomy,
- NASA,
- WIRED,
- JPL
See also
- NASA, Kepler mission, Table of Confirmed Planets
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