GJ 1002 b

A confirmed exoplanet orbiting GJ 1002.

Compared with Earth

Mass
About 1.1 times Earth's mass.
Temperature
About -42 °C (-44 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
Starlight
About 67% of the starlight Earth gets from the Sun.
Year
A year here lasts about 10 Earth days.

Planet

Radius
Unknown
Mass
1.08 × Earth
Density
Unknown
Equilibrium temperature
230.9 K
Starlight received
0.67 × Earth
Orbital period
10.35 days
Average distance from its star
0.0457 AU

Star

Host star
GJ 1002
Spectral class
M — red dwarf
Surface temperature
3,024 K
Radius
0.137 × Sun
Mass
0.12 × Sun
Age
Unknown

System

Distance from Earth
15.81 light-years (4.849 parsecs)
Stars in system
1
Known planets
2

Discovery

Year
2022
Method
Radial Velocity
Facility
Multiple Observatories

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