Stars and nebulae, winner: An Ultra-Deep Exposure by Julian Zoller, Jan Beckmann, Lukas Eisert and Wolfgang Hummel
The Great Hercules Cluster (M13) is one of the most prominent and well-studied globular clusters in the northern sky. Discovered by Edmond Halley in 1714, it is in the constellation Hercules about 22,200 light years from Earth. M13 is visible to the naked eye under dark skies and can be observed through binoculars or a small telescope. Location: Asturias, Spain
