Answer :
Answer:
D) Globular Clusters
Explanation:
A star system or stellar system is a small number of stars which orbit each other, bound by gravitational attraction. A large number of stars bound by gravitation is generally called a star cluster but, broadly speaking, they are also star systems. A star cluster is a group of stars that share a common origin and are gravitationally bound for some length of time. The two basic categories of stellar clusters are open clusters, also known as galactic clusters, and globular clusters.
Globular clusters is a type of star system.
What is star system?
- A star system, also known as a stellar system, is a group of stars that circle each other and are held together by gravitational pull.
- A stellar cluster or galaxy is a huge group of stars that are gravitationally bonded together, however they are also known as star systems.
- Planetary systems, which comprise planets and other similar bodies, are not to be mistaken with star systems such as comets.
What is globular clusters?
- Globular clusters are clumps of old stars that are firmly packed together.
- They have a roughly spherical form and contain hundreds of thousands, if not millions, of stars.
- Astronomers can use them to determine the age of the cosmos or the location of a galaxy's core by studying them.
Hence, the correct option is D.
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