Millions of Stars in Omega Centauri . ... Credit Copyright: P. Seitzer ( U. Michigan ) Explanation: Pictured above is the largest ball of stars in our Galaxy. About 10 million stars orbit the center of this globular cluster - named Omega Centauri - as this giant globular cluster orbits the center of our Galaxy . Recent evidence indicates that Omega Centauri is by far the most massive of the about 160 globular clusters in the Milky Way . ... NASA Web Site Statements, Warnings, and Disclaimers . ...