Exoplanet Catalog
K2-138 e
K2-138 e is a Neptune-like exoplanet that orbits a G-type star. Its mass is 12.97 Earths, it takes 8.3 days to complete one orbit of its star, and is 0.0782 AU from its star. Its discovery was announced in 2017.
PLANET TYPE
Neptune-like
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DISCOVERY DATE
2017
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MASS
12.97 Earths
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PLANET RADIUS
0.302 x Jupiter
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ORBITAL RADIUS
0.0782 AU
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ORBITAL PERIOD
8.3 days
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ECCENTRICITY
0.08
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DETECTION METHOD
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