The large collection of stars, dust and gas held together by gravitational attraction between components is known as – (1) Cluster (2) Atmosphere (3) Galaxy (4) Sun Family
(3) Galaxy Explanation: The term galaxy refers to a large collection of stars, dust, and has clouds which are held together by gravitational attraction. The smallest galaxies may contain only a few hundred thousand stars, while the largest galaxies have thousands of billions of stars. The Milky Way galaxy contains our solar system.