The Great Cluster of Hercules and neighboring galaxy, 2010-04-12 In Color!
The Great Cluster of Hercules and neighboring galaxy, 2010-04-12 In Color!
The Great Cluster in Hercules, 2009-06-17
The Great Cluster in Hercules, 2009-06-17
The Great Hercules Cluster, 2006-10-17
The Great Hercules Cluster, a globular cluster in Hercules, 2004-09-17 In Color!
The Great Hercules Cluster, a globular cluster in Her, 2004-09-17
M13 - The Great Cluster of Hercules, 2001-07-16 In Color!
The Great Cluster of Hercules, 2000-08-09 In Color!
Galaxies and Cluster in Hercules, 1999-04-29