Planetary system

A planetary system is a group of planets that go around a star. Imagine if you and your friends all went around in circles around a big ball. That big ball is like a star and each of you going around it is like a planet in a planetary system.

Just like how the planets in our solar system revolve around the sun, the planets in any other planetary system also circle around their star. These planets are very far from each other and are in different sizes and shapes.

A planetary system can have different numbers of planets, with some having just one planet while others might have many. The planets in a planetary system are also different from each other, with some being very hot while others are very cold, and some being very big while others are very small.

Overall, a planetary system is like a big family where each planet is unique but they all revolve around the same star.