GJ 887 b
A confirmed exoplanet orbiting GJ 887.
Compared with Earth
- Mass
- About 3.9 times Earth's mass.
- Temperature
- About 153 °C (307 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Starlight
- About 7.8 times the starlight Earth gets from the Sun.
- Year
- A year here lasts about 9.3 Earth days.
Planet
- Radius
- Unknown
- Mass
- 3.9 × Earth
- Density
- Unknown
- Equilibrium temperature
- 426 K
- Starlight received
- 7.8 × Earth
- Orbital period
- 9.262 days
- Average distance from its star
- 0.0683 AU
Star
- Host star
- GJ 887
- Spectral class
- M — red dwarf
- Surface temperature
- 3,688 K
- Radius
- 0.468 × Sun
- Mass
- 0.495 × Sun
- Age
- 2.9 billion years
System
- Distance from Earth
- 10.72 light-years (3.287 parsecs)
- Stars in system
- 1
- Known planets
- 4
Discovery
- Year
- 2020
- Method
- Radial Velocity
- Facility
- La Silla Observatory
Data from the NASA Exoplanet Archive, synced October 14, 2026.