Stephenson 1 is a star cluster in the constellation Lyra. It is about 1200 light years from our solar system and more or less centered on Delta 2 Lyrae, which ironically has been found not to be a cluster member. Nearby Delta 1 Lyrae is a 70% probable member. Also...
The first question one might ask is what makes a star cluster super-sized? And the answer is easy – star clusters that are relatively close to us appear larger in the sky. The first of these three clusters is arguably the best known star cluster of all. It is the...
