GJ 4276 b

A confirmed exoplanet orbiting GJ 4276.

Compared with Earth

Mass
About 17 times Earth's mass.
Year
A year here lasts about 13 Earth days.

Planet

Radius
Unknown
Mass
16.57 × Earth
Density
Unknown
Equilibrium temperature
Unknown
Starlight received
Unknown
Orbital period
13.35 days
Average distance from its star
0.082 AU

Star

Host star
GJ 4276
Spectral class
M — red dwarf
Surface temperature
3,387 K
Radius
0.407 × Sun
Mass
0.406 × Sun
Age
6.9 billion years

System

Distance from Earth
69.59 light-years (21.34 parsecs)
Stars in system
1
Known planets
1

Discovery

Year
2019
Method
Radial Velocity
Facility
Calar Alto Observatory

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