GJ 251 c
📋 A written introduction is coming — for now this page shows official values only.
Planet
- Host star
- GJ 251
- Distance from Earth
- 5.5806 pc (≈ 18.2 light-years)
- NASA planet type
- Super Earth
- Radius (Earth = 1)
- 1.8
- Mass (Earth = 1)
- 3.88
- Orbital period
- 53.647 days
- Semi-major axis
- 0.196 AU
- Eccentricity
- 0
- Equilibrium temperature
- 216 K
- Discovery method
- Radial Velocity
- Discovery year
- 2,025
- Discovery facility
- Multiple Observatories
- Host spectral type
- M3.0 V
- Host temperature
- 3,342 K
- Host radius (Sun = 1)
- 0.36
- Host mass (Sun = 1)
- 0.35
- Host brightness
- 9.89 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 18 years to reach Earth — the light you see tonight left around AD 2008 (official distance ÷ speed of light).
- Its radius is about 1.8 times Earth's (NASA Exoplanet Archive).
- One orbit takes about 53.6 Earth days — that is this planet's year.
Worked out from this object's official values.