GJ 1132 b

A confirmed exoplanet orbiting GJ 1132.

Compared with Earth

Size
About 1.2 times Earth's width.
Mass
About 1.8 times Earth's mass.
Temperature
About 311 °C (591 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
Starlight
About 19 times the starlight Earth gets from the Sun.
Year
A year here lasts about 1.6 Earth days.

Planet

Radius
1.192 × Earth
Mass
1.837 × Earth
Density
5.97 g/cm³
Equilibrium temperature
583.8 K
Starlight received
19.3 × Earth
Orbital period
1.629 days
Average distance from its star
0.0157 AU

Star

Host star
GJ 1132
Spectral class
M — red dwarf
Surface temperature
3,229 K
Radius
0.2211 × Sun
Mass
0.1945 × Sun
Age
Unknown

System

Distance from Earth
41.14 light-years (12.61 parsecs)
Stars in system
1
Known planets
2

Discovery

Year
2015
Method
Transit
Facility
Cerro Tololo Inter-American Observatory

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