XO-2 S
XO-2 S is a G8 V star 494 light years away with 3 known planets. The first was found in 2014 and the latest in 2024. It has a companion star.
Open in 3DPlanets
| Planet | Orbital period | Distance from star | Radius (Earths) | Mass (Earths) | Found | Method |
|---|---|---|---|---|---|---|
| XO-2 S b | 18.22 days | 0.1347 AU | at least 82.64 | 2014 | Radial Velocity | |
| XO-2 S c | 120.1 days | 0.4737 AU | at least 438.6 | 2014 | Radial Velocity | |
| XO-2 S d | 12.86 years | 5.46 AU | at least 1,179 | 2024 | 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 G8 V
- 5,325 K surface temperature
- 0.98 times the mass of the Sun
- 1.02 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.