GJ 3998 b is a gas giant exoplanet that orbits a K-type star. Its mass is at least 2.47 Earths, it takes 2.6 days to complete one orbit of its star, and is 0.029 AU from its star. Its discovery was announced in 2016.

PLANET TYPE
Gas Giant
DISCOVERY DATE
2016
MASS
at least 2.47 Earths
PLANET RADIUS
Unknown
ORBITAL RADIUS
0.029 AU
ORBITAL PERIOD
2.6 days
ECCENTRICITY
0.0
DETECTION METHOD
Radial Velocity