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How far away is the Andromeda Galaxy from the Milky Way Galaxy?
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Galaxy
The Whirlpool Galaxy (left), also known as M51, an Sc galaxy accompanied by a small irregular companion galaxy, NGC 5195 (right).
The Andromeda Galaxy is located approximately 2,480,000 light-years away from the Milky Way Galaxy.12
While some sources may refer to it as being about 2,000,000 light-years away as a general approximation within the Local Group, the more precise measurement established by modern astronomical study is 2.48 million light-years. Both galaxies are the dominant members of the Local Group, a collection of more than 50 galaxies held together by mutual gravitational attraction.132