Kepler-399
Kepler-399 is a star 2,415 light years away with 3 known planets. They were all found in 2014.
Open in 3DPlanets
| Planet | Orbital period | Distance from star | Radius (Earths) | Mass (Earths) | Found | Method |
|---|---|---|---|---|---|---|
| Kepler-399 b | 14.43 days | 0.103 AU | 0.96 | 2014 | Transit | |
| Kepler-399 c | 26.68 days | 0.155 AU | 1.43 | 2014 | Transit | |
| Kepler-399 d | 58.03 days | 0.261 AU | 1.89 | 2014 | Transit |
Star
- 5,502 K surface temperature
- 0.902 times the mass of the Sun
- 0.68 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.