NGC 6687 is a globular cluster located in the constellation Ara. It is approximately 30,000 light-years away from Earth and is part of our Milky Way galaxy. This cluster contains a dense collection of stars, which are tightly bound by gravity, making it a fascinating object for astronomers. Discovered by James Dunlop in 1826, NGC 6687 is notable for its relatively high concentration of stars. It is classified as a metal-poor cluster, meaning it has fewer heavy elements compared to younger clusters. This characteristic provides insights into the early stages of star formation in the universe.