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What is Messier 45 also known as?

Messier 45: Pleiades. Messier 45 (M45), also known as the Pleiades or Seven Sisters, is a bright open star cluster located in the constellation Taurus, the Bull. The Pleiades cluster has an apparent magnitude of 1.6 and lies at an average distance of 444 light years from Earth. The cluster is also known as Melotte 22.

What is the Messier cluster M45?

Charles Messier measured the position of the cluster and included it as M45 in his catalogue of comet -like objects, published in 1771.

What does M45 stand for?

Messier 45 (M45), also known as the Pleiades or Seven Sisters, is a bright open star cluster located in the constellation Taurus, the Bull. The Pleiades cluster has an apparent magnitude of 1.6 and lies at an average distance of 444 light years from Earth.

What type of Nebula is M45?

This produces a reflection nebula. Commonly called the Pleiades or Seven Sisters, M45 is known as an open star cluster. It contains over a thousand stars that are loosely bound by gravity, but it is visually dominated by a handful of its brightest members.


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