Synodic Period Calculator
Posted by Dinesh onCalculate synodic period of planets in the solar system by using simple astronomy calculator online.
Synodic Period : The time between successive conjunctions of a planet with the sun.
The synodic period is the amount of time that it takes for an object to reappear at the same point in relation to two or more other objects. The time between two successive oppositions or conjunctions is also an example of the synodic period. For the planets in the solar system, the synodic period differs from the sidereal period due to the Earth's orbiting around the Sun.
For example, Jupiter has a synodic period of 398.8 days from Earth; thus, Jupiter's opposition occurs once roughly every 13 months.
| Object | Sidereal period (yr) | Synodic period (yr) | Synodic period (d) |
|---|---|---|---|
| Mercury | 0.240846 (87.9691 days) | 0.317 | 115.88 |
| Venus | 0.615 (225 days) | 1.599 | 583.9 |
| Earth | 1 (365.25636 solar days) | - | - |
| Moon | 0.0748 (27.32 days) | 0.0809 | 29.5306 |
| Mars | 1.881 | 2.135 | 779.9 |
| Jupiter | 11.86 | 1.092 | 398.9 |
| Saturn | 29.46 | 1.035 | 378.1 |
| Uranus | 84.01 | 1.012 | 369.7 |
| Neptune | 164.8 | 1.006 | 367.5 |
| Pluto | 248.1 | 1.004 | 366.7 |
Calculate Synodic Period of Planets
Formula:
P1 = sidereal period of 1st body around the 3rd (P1 < P2)
P2 = sidereal period of 2nd body around the 3rd (P1 < P2)
Psyn = synodic period