GJ 685 b

A confirmed exoplanet orbiting GJ 685.

Compared with Earth

Mass
About 9 times Earth's mass.
Year
A year here lasts about 24 Earth days.

Planet

Radius
Unknown
Mass
9 × Earth
Density
Unknown
Equilibrium temperature
Unknown
Starlight received
Unknown
Orbital period
24.16 days
Average distance from its star
0.1344 AU

Star

Host star
GJ 685
Spectral class
M — red dwarf
Surface temperature
3,816 K
Radius
0.54 × Sun
Mass
0.55 × Sun
Age
Unknown

System

Distance from Earth
46.69 light-years (14.32 parsecs)
Stars in system
1
Known planets
1

Discovery

Year
2019
Method
Radial Velocity
Facility
Roque de los Muchachos Observatory

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