GJ 3021 b
A confirmed exoplanet orbiting GJ 3021.
Compared with Earth
- Mass
- About 1,071 times Earth's mass.
- Temperature
- About 77 °C (170 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Year
- A year here lasts about 134 Earth days.
Planet
- Radius
- Unknown
- Mass
- 1,071 × Earth
- Density
- Unknown
- Equilibrium temperature
- 350 K
- Starlight received
- Unknown
- Orbital period
- 133.7 days
- Average distance from its star
- 0.49 AU
Star
- Host star
- GJ 3021
- Spectral class
- G — sun-like
- Surface temperature
- 5,540 K
- Radius
- 0.9 × Sun
- Mass
- 0.9 × Sun
- Age
- Unknown
System
- Distance from Earth
- 57.26 light-years (17.56 parsecs)
- Stars in system
- 2
- Known planets
- 1
Discovery
- Year
- 2000
- Method
- Radial Velocity
- Facility
- La Silla Observatory
Data from the NASA Exoplanet Archive, synced October 14, 2026.