Super-Earth · GJ 3998
GJ 3998 d
ExoplanetsDiscovered 2025
Scientific overview
GJ 3998 d is a super-earth orbiting GJ 3998, completing an orbit every 42 days, about 59 light-years from Earth. It was discovered in 2025 using the radial velocity method.
Host star
Planetary system — GJ 3998 system
View the GJ 3998 system (3 known planets).
Discovery and detection
Detection method
Radial Velocity Method
Discovery year
2025
Knowledge connections
- OrbitsGJ 3998
- Member of systemGJ 3998 system
- Discovered by methodRadial Velocity Method
- Catalogued inNASA Exoplanet Archive