GJ 328 c

A confirmed exoplanet orbiting GJ 328.

Compared with Earth

Mass
About 21 times Earth's mass.
Year
A year here lasts about 242 Earth days.

Planet

Radius
Unknown
Mass
21.4 × Earth
Density
Unknown
Equilibrium temperature
Unknown
Starlight received
Unknown
Orbital period
241.8 days
Average distance from its star
0.657 AU

Star

Host star
GJ 328
Spectral class
M — red dwarf
Surface temperature
3,897 K
Radius
0.63 × Sun
Mass
0.65 × Sun
Age
Unknown

System

Distance from Earth
66.95 light-years (20.53 parsecs)
Stars in system
1
Known planets
2

Discovery

Year
2023
Method
Radial Velocity
Facility
Roque de los Muchachos Observatory

Data from the NASA Exoplanet Archive, synced October 14, 2026.