47 Tucanae, also known as NGC 104, is a globular cluster located in the constellation of Tucana. It is one of the brightest globular clusters visible from Earth and is approximately 16,000 light-years away. This cluster contains hundreds of thousands of stars, many of which are older and more evolved than the Sun. Discovered in 1751 by Nicholas Louis de Lacaille, 47 Tucanae is notable for its dense concentration of stars and its complex structure. It is often studied by astronomers to understand stellar evolution and the dynamics of star clusters. The cluster is also a popular target for amateur astronomers due to its brightness.