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| Description: Luminosity Classes Dividing the H-R diagram into regions, called luminosity classes, permits finer distinctions between giants and supergiants. Luminosity classes Ia and Ib encompass the supergiants. Luminosity classes II, III, and IV indicate giants of different brightness. Luminosity class V indicates main-sequence stars. White dwarfs do not have their own luminosity class Picture Stats: Views: 709 Filesize: 242.49kB Height: 900 Width: 790 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=18391 |