This is a very common phenomenon in astronomy, as the gravitational pull of any celestial body can influence the movement of other bodies in its vicinity.
Here are some examples of perturbation:
* The planets in our solar system perturb each other's orbits. This is why the orbits are not perfectly elliptical but slightly irregular.
* The Moon's gravity perturbs the Earth's oceans, causing tides.
* The gravitational pull of Jupiter and Saturn can perturb the orbits of comets.
The study of perturbations is essential to understanding the complex motions of celestial bodies and predicting their future positions.
