GJ 393 b
A confirmed exoplanet orbiting GJ 393.
Compared with Earth
- Mass
- About 1.7 times Earth's mass.
- Temperature
- About 212 °C (413 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Starlight
- About 9.2 times the starlight Earth gets from the Sun.
- Year
- A year here lasts about 7 Earth days.
Planet
- Radius
- Unknown
- Mass
- 1.71 × Earth
- Density
- Unknown
- Equilibrium temperature
- 485 K
- Starlight received
- 9.21 × Earth
- Orbital period
- 7.027 days
- Average distance from its star
- 0.05402 AU
Star
- Host star
- GJ 393
- Spectral class
- M — red dwarf
- Surface temperature
- 3,579 K
- Radius
- 0.426 × Sun
- Mass
- 0.426 × Sun
- Age
- Unknown
System
- Distance from Earth
- 22.93 light-years (7.031 parsecs)
- Stars in system
- 1
- Known planets
- 1
Discovery
- Year
- 2021
- Method
- Radial Velocity
- Facility
- Multiple Observatories
Data from the NASA Exoplanet Archive, synced October 14, 2026.