William Herschel Located the First Binary Star, Xi Ursae Majoris, in 1780

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May 022024
 
File:William Herschel.jpg

William Herschel

William Herschel located the first binary star, Xi Ursae Majoris, in 1780. Later astronomers found that each of the two stars has another star orbiting around it! Researchers today believe that about a third of the stars in the Milky Way are binary. Children can learn about binary stars at: Binary Stars.

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