GJ 3138 d
A confirmed exoplanet orbiting GJ 3138.
Compared with Earth
- Mass
- About 11 times Earth's mass.
- Starlight
- About 10% of the starlight Earth gets from the Sun.
- Year
- A year here lasts about 258 Earth days.
Planet
- Radius
- Unknown
- Mass
- 10.5 × Earth
- Density
- Unknown
- Equilibrium temperature
- Unknown
- Starlight received
- 0.1 × Earth
- Orbital period
- 257.8 days
- Average distance from its star
- 0.698 AU
Star
- Host star
- GJ 3138
- Spectral class
- M — red dwarf
- Surface temperature
- 3,717 K
- Radius
- 0.5 × Sun
- Mass
- 0.681 × Sun
- Age
- Unknown
System
- Distance from Earth
- 92.86 light-years (28.47 parsecs)
- Stars in system
- 1
- Known planets
- 3
Discovery
- Year
- 2017
- Method
- Radial Velocity
- Facility
- La Silla Observatory
Data from the NASA Exoplanet Archive, synced October 14, 2026.