GJ 3998 d
Orbiting GJ 3998
GJ 3998 d is an exoplanet orbiting the star GJ 3998, discovered in 2025 using the Radial Velocity method.
Orbital Period
41.8
days
Distance
18.1
parsecs
Radius (Earth radii)
Unknown
Mass (Earth masses)
Unknown
Equilibrium Temperature
Unknown
Orbital Period
41.78 days
Distance from Earth
18.1 pc (~59 ly)
Spectral Type
Unknown
Temperature
3726 K
Mass (Solar)
0.52 M☉
Radius (Solar)
0.50 R☉
Luminosity
-1.36 log L☉
Planets in System
3
Stars in System
1
Coordinates (RA, Dec)
259.0021°, 11.0562°
Discovery Method
Radial Velocity
Discovery Year
2025
Source ID: GJ 3998 d
GJ 3998 d orbits GJ 3998 and was reported in 2025 and was detected with the Radial Velocity method.
Published measurements list an orbital period of 41.78 days.
Catalog data places the system at about 18.1 parsecs from Earth and 3 known planets in the system.
Host star
Explore the stellar record for this system to compare temperature, spectral type, and known planets.
Open GJ 3998