What is the physical radius of Omega Centauri in the light years?

Using the small angle formula and given that the distance to Omega Centauri is 16,000 ly, what is the physical radius of Omega Centauri in the light years?|||150 light years


The stars are as close as 0.1 light years apart.





see this article (with nice pic)


http://apod.nasa.gov/apod/ap020416.html





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 our Galactic center. Recent evidence indicates that Omega Centauri is by far the most massive of the about 150 known globular clusters in the Milky Way. Omega Centauri, cataloged as NGC 5139, spans about 150 light years across, lies about 15,000 light years away, and can be seen without visual aid toward the constellation of Centaurus. The stars in globular clusters are generally older, redder and less massive than our Sun. Studying globular clusters tells us not only about the history of our Galaxy but also limits the age of the universe.|||Distance is 5.2 kpc (=16960 LY) and an apparent diameter of 30'arc, or 150 LY across. With photographic plates it was observed to be 70' across (350 LY). The rich central core is about 100 LY across.|||86 卤 6 ly