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.
Planet Radius:
0.288 x Jupiter (estimate)
Planet Type:
  • Neptune-like
Discovery Method:
  • Radial Velocity
Planet Mass:
10.5 Earths
Discovery Date:
Orbital Radius:
0.698 AU
Orbital Period:
257.8 days
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