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Two water worlds found in planetary system Kepler 138

Astronomers measured the size and mass of planets around star Kepler 138 and found out that two of them might be long sought after water worlds. The exoplanets Kepler 138 c and Kepler 138 d are twice as heavy as the Earth and their radius is 20 % bigger. New research also shows evidence for a fourth planet in the system, which orbits near the inner edge of the star’s habitable zone.

missions icon Kepler 7. 3. 2009 - 15. 11. 2018 Ended: Success

Exoplanet Kepler 138 d, structure

Planetary system Kepler 138

Related stars in our catalogue
part of star image
part of star image
Kepler 138 218.9 ly
4 exoplanet
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