GJ 581 e
📋 A written introduction is coming — for now this page shows official values only.
Planet
- Host star
- GJ 581
- Distance from Earth
- 6.2981 pc (≈ 20.5 light-years)
- NASA planet type
- Super Earth
- Radius (Earth = 1)
- 1.38
- Mass (Earth = 1)
- 2.48
- Orbital period
- 3.1481 days
- Semi-major axis
- 0.02799 AU
- Eccentricity
- 0.012
- Equilibrium temperature
- 554.37 K
- Discovery method
- Radial Velocity
- Discovery year
- 2,009
- Discovery facility
- La Silla Observatory
- Host spectral type
- M3.0 V
- Host temperature
- 3,500 K
- Host radius (Sun = 1)
- 0.302
- Host mass (Sun = 1)
- 0.295
- Host brightness
- 10.57 mag
Source:NASA Exoplanet Archive (Caltech/IPAC) · checked 2026-11-02 ↗NASA Science · checked 2026-11-02 ↗NASA Exoplanet Archive (Caltech/IPAC) · checked 2026-11-02 ↗
In everyday life
- Light from this object takes about 21 years to reach Earth — the light you see tonight left around AD 2005 (official distance ÷ speed of light).
- Its radius is about 1.4 times Earth's (NASA Exoplanet Archive).
- One orbit takes about 3.1 Earth days — that is this planet's year.
Worked out from this object's official values.