page_title: Shapley–Sawyer Concentration Class
section_title: Classes
hierarchical_section_title: Shapley–Sawyer Concentration Class / Classes
caption_attribution_description: English: en:Messier 30 globular cluster by en:Hubble Space Telescope; 3.5′ view
context_page_description: The Shapley–Sawyer Concentration Class is a classification system on a scale of one to twelve using Roman numerals for globular clusters according to their concentration. The most highly concentrated clusters such as M75 are classified as Class I, with successively diminishing concentrations ranging to Class XII, such as Palomar 12.
caption: Messier 30
exif: {}