Synodic Period - Time that elapse between two successive identical configurations as seen from Earth
Sidereal Period - True orbital period of a planet, the time it takes the planet to complete one full orbit of the Sun.
| Planet | Synodic Period (days) | Sidereal Period |
|---|---|---|
| Mercury | 116 | 88 days |
| Venus | 584 | 225 days |
| Earth | - | 1.0 year |
| Mars | 780 | 1.9 years |
| Jupiter | 399 | 11.9 years |
| Saturn | 378 | 29.5 years |
| Uranus | 370 | 84.0 years |
| Neptune | 368 | 164.8 years |
| Pluto | 367 | 248.5 years |