star system
/ˈstɑːr ˈsɪstəm/ · star.sys.tem
noun
- A group of celestial objects that are gravitationally bound together, consisting of a star and other objects such as planets, dwarf planets, asteroids, comets, and other smaller bodies. The solar system is a star system that includes the Sun and eight planets.
- A system of stars that are gravitationally bound together, often including a central star and surrounding stars, planets, or other objects. The star system of Alpha Centauri consists of three stars: Alpha Centauri A, Alpha Centauri B, and Proxima Centauri.
Did you know? The star system of our solar system is thought to have formed around 4.6 billion years ago from a giant cloud of gas and dust called the solar nebula.