Question

define the term Galaxy​

Answer 1

Answer:

a system of millions or billions of stars, together with gas and dust, held together by gravitational attraction.

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Explanation:

Answer 2

Answer:

A galaxy is a collection of stars and planets that are held together by gravity .In a galaxy,the celeastial bodies rotate arround a central object. The earth's galaxy is known as the milky way.Our solar system,made up of the sun and the planets that encricle it,is a tiny part of the galaxy