File:Hertzsprung-russel diagram.png
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Summary
DescriptionHertzsprung-russel diagram.png | This is an example of a Hertzsprung-Russell diagram; a plot of luminosity versus spectral class for a group of stars. The diagonal band labelled "main sequence" is where dwarf stars such as the Sun spend most of their active lifespan. Red giants and supergiants are evolved stars with a mass greater than a red dwarf, that are burning elements heavier than hydrogen. However, White Dwarfs are quite dense, non-luminous, but are still less in mass than supergiants. Once this supply of fuel is exhausted, these stars will migrate to the lower left on this diagram, becoming white dwarfs. |
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Source | This illustration by the contributor is based on Figure 3 (p. 52) of Great Ideas and Theories of Modern Cosmology by Jagjit Singh.[1] |
Author | Illustraion by R.J. Hall |
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Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License.http://www.gnu.org/copyleft/fdl.htmlGFDLGNU Free Documentation Licensetruetrue |
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This licensing tag was added to this file as part of the GFDL licensing update.http://creativecommons.org/licenses/by-sa/3.0/CC BY-SA 3.0Creative Commons Attribution-Share Alike 3.0truetrue |
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References
- ↑ Jagjit Singh, Great Ideas and Theories of Modern Cosmology 1970, Dover Publications, Inc., New York, ISBN 0-486-20925-3.
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18 December 2006
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current | 02:59, 24 January 2007 | 693 × 819 (51 KB) | Pngbot | optimized with optipng |
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