GJ 3998 d
: GJ 3998 d is a Neptune-like exoplanet that orbits a M-type star. Its mass is 6.07 Earths, it takes 41.8 days to complete one orbit of its star, and is 0.189 AU from its star. Its discovery was announced in 2025.
Planet Radius:
0.209 x Jupiter (estimate)
Planet Type:
- Neptune-like
Discovery Method:
- Radial Velocity
Planet Mass:
6.07 Earths
Discovery Date:
2025
Orbital Radius:
0.189 AU
Orbital Period:
41.8 days
Eccentricity:
0.0
