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| Description: An H-R Diagram of a Globular Cluster Each dot on this graph represents the absolute magnitude and surface temperature of a star in the globular cluster M55. Note that the upper half of the main sequence is missing. The horizontal-branch stars are stars that recently experienced the helium flash in their cores and now exhibit core helium fusion and hydrogen shell fusion. Picture Stats: Views: 1117 Filesize: 262.08kB Height: 900 Width: 939 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=18435 |