Star Clusters
Messier 13 in Hercules
M13 is known as the Great Globular Cluster in Hercules. It consists of several hundred thousand stars around 145 lightyears in diameter and 22,000 lightyears distant
ZWO ASI294MC Pro camera through a 200mm Teleskop-Service Ritchey-Chretien telescope.
Date: 11/04/2019
Photographer: Graham Wilcock
