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| Description: Structure of the H-R Diagram (a) Data taken by the Hipparcos satellite placed 41,453 stars more precisely on the H-R diagram than any previous observations. This figure shows the overall structure of the H-R diagram. The thickness of the main sequence is due in large part to stars of different ages turning off the main sequence at different places, as shown in (b). Picture Stats: Views: 783 Filesize: 235.45kB Height: 900 Width: 761 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=18436 |