Object NGC 5139 is a globular cluster in the constellation Centaurus. This globular star cluster is located at a distance of 18,300 light-years from us. This is one of the largest star clusters in our galaxy. The Omega Centauri accumulation includes about 10 million stars, many of which are older than our own Sun.
This star cluster extends for a distance of 150 light years in outer space. Astronomers claim that the star cluster of Omega Centauri may be the remains of the nucleus of a small galaxy.