GJ 317
GJ 317 is an M3.5 V star 49.6 light years away with 2 known planets. The first was found in 2007 and the latest in 2016.
Open in 3DPlanets
| Planet | Orbital period | Distance from star | Radius (Earths) | Mass (Earths) | Found | Method |
|---|---|---|---|---|---|---|
| GJ 317 b | 695.7 days | 1.138 AU | at least 536.5 | 2007 | Radial Velocity | |
| GJ 317 c | 17.8 years | 5.04 AU | at least 454.5 | 2016 | 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 M3.5 V
- 3,496 K surface temperature
- 0.402 times the mass of the Sun
- 0.403 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.