NGC 6752

NGC 6752 (also known as Caldwell 93 and nicknamed the Great Peacock Globular) is a globular cluster in the constellation Pavo (the Peacock). It is the fourth brightest globular cluster in the sky, after Omega Centauri, 47 Tucanae, and Messier 22, respectively. The cluster is located about 13,000 light-years away and is one of the closest globular clusters to Earth. It is also located 17,000 light-years from the galactic center. It belongs to Shapley-Sawyer concentration class VI, meaning it is of intermediate density, and has been calculated to be 11.78 billion years old. It is composed of very old stars, with ages close to 13 billion years, almost as old as the Galaxy itself. Metal-poor stars predominate, indicating that they formed when the universe still contained few elements. complex chemicals.

There are many binary stars in the system, as well as blue stragglers, which likely formed from collisions and mergers of smaller stars.