What is another word for groups of planets?
Pronunciation: [ɡɹˈuːps ɒv plˈanɪts] (IPA) 
When referring to groups of planets, there are a variety of terms that can be used. One common term is "solar system," which refers to the collection of planets, asteroids, and other celestial bodies that orbit around a central star (in our case, the sun). Another term is "planetary system," which specifically refers to a star and its planets, as well as any other objects that orbit it. Another option is to use the term "exoplanetary system" when referring to systems outside of our solar system. If you're discussing a particular group of planets, you could also use the term "planet cluster" or "planet grouping".
