GJ 229
GJ 229 is an M1.5V star 18.8 light years away with 2 known planets. The first was found in 2014 and the latest in 2020. It has 2 companion stars.
Open in 3DPlanets
| Planet | Orbital period | Distance from star | Radius (Earths) | Mass (Earths) | Found | Method |
|---|---|---|---|---|---|---|
| GJ 229 A c (disputed) | 121.9 days | 0.384 AU | at least 8.581 | 2020 | Radial Velocity | |
| GJ 229 b (disputed) | 579.5 days | 1.086 AU | at least 14.94 | 2014 | Radial Velocity |
"At least" is a minimum mass. Radial velocity can only measure mass times the sine of the orbit's tilt.
Star
- Spectral type M1.5V
- 3,564 K surface temperature
- 0.509 times the mass of the Sun
- 0.46 times the radius of the Sun
Data from the NASA Exoplanet Archive, as of October 3, 2026. In the 3D view sizes and distances are compressed and every orbit is drawn in the same plane. Where each planet sits along its orbit is made up.