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star system
Sign in to saveAlso known as stellar system, multiple star, multiple stars, multiple star system, sun system
type of astronomical object, stars which orbit each other
A star system is a group of stars that orbit around each other due to their mutual gravitational attraction. Star systems matter because they are common in the universe and studying them helps us understand how stars form, evolve, and interact with one another.
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- Sirius A and B Hubble photo.jpg
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- Multiple star systems
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A star system or stellar system is a small number of stars that orbit each other, bound by gravitational attraction. It may sometimes be used to refer to a single star. A large group of stars bound by gravitation is generally called a star cluster or galaxy, although, broadly speaking, they are also star systems. Star systems are not to be confused with planetary systems, which include planets and similar bodies (such as comets).
Terminology