The NGC 6251 group is a collection of galaxies located in the constellation Pegasus. It is centered around the giant elliptical galaxy NGC 6251, which is notable for its active galactic nucleus and strong radio emissions. This group is part of a larger structure known as the Hercules supercluster. In addition to NGC 6251, the group includes several other galaxies, such as NGC 6250 and NGC 6240. These galaxies are relatively close to each other in space, allowing astronomers to study their interactions and the dynamics of galaxy groups. The NGC 6251 group provides valuable insights into galaxy formation and evolution.