Arcturus Thought to Be from Another Galaxy

This is the Guardian Star iin the constellation Bootes, Arcturus. It is the alpha star or the brightest in the constellation. It is also called the Wanderer Star. Astronomers have long known that Arcturus is not like other stars in the Milky Way galaxy because it moves differently and does not have a typical chemical composition like the others. They have come to theorize that it and other like stars were once part of another smaller galaxy that the Milky Way assimilated. The photo is from John Chumack's astrophotography site. You can purchase the non-watermarked image as well as more of his photos here: http://www.galacticimages.com/catalog/Arcturus+photos+-+Alpha+Bootes+Photos