Exoplanet Catalog
GJ 3138 d
GJ 3138 d is a Neptune-like exoplanet that orbits an M-type star. Its mass is 10.5 Earths, it takes 257.8 days to complete one orbit of its star, and is 0.698 AU from its star. Its discovery was announced in 2017.
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PLANET TYPE
Neptune-like
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DISCOVERY DATE
2017
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MASS
10.5 Earths
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PLANET RADIUS
0.288 x Jupiter
(estimate) |
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ORBITAL RADIUS
0.698 AU
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ORBITAL PERIOD
257.8 days
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ECCENTRICITY
0.32
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DETECTION METHOD
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