The Milky Way belongs to the rod spin field where the solar system is located. The total mass of the Milky Way is about10.5 trillion times that of the sun, which belongs to the local galaxy group. The Milky Way is the star system where the solar system is located, including150-400 billion stars, a large number of star clusters and nebulae, and various types of interstellar gas, interstellar dust and black holes. Its total visible mass is 1.5 trillion times that of the sun.
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