Gl 378 b

A confirmed exoplanet orbiting Gl 378.

Compared with Earth

Mass
About 13 times Earth's mass.
Temperature
About 557 °C (1,034 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
Year
A year here lasts about 3.8 Earth days.

Planet

Radius
Unknown
Mass
13.02 × Earth
Density
Unknown
Equilibrium temperature
830 K
Starlight received
Unknown
Orbital period
3.822 days
Average distance from its star
0.03944 AU

Star

Host star
Gl 378
Spectral class
M — red dwarf
Surface temperature
3,879 K
Radius
0.56 × Sun
Mass
0.56 × Sun
Age
Unknown

System

Distance from Earth
48.77 light-years (14.95 parsecs)
Stars in system
1
Known planets
1

Discovery

Year
2019
Method
Radial Velocity
Facility
Haute-Provence Observatory

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