Spiral Galaxy In Centaurus . ... The lovely Milky Way flows through this large constellation whose celestial wonders also include the closest star to the sun, Alpha Centauri , the largest globular star cluster in our galaxy, Omega Centauri , and the closest active galaxy, Centaurus A . Embraced by tightly wound spiral arms of bright blue star clusters, this gorgeous galaxy - cataloged as ESO 269-57 - also falls within Centaurus' borders . ... NASA Web Site Statements, Warnings, and Disclaimers . ...