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           | Description | 
           Hertzsprung-Russell diagram. A plot of luminosity (absolute magnitude) against the colour of the stars ranging from the high-temperature blue-white stars on the left side of the diagram to the low temperature red stars on the right side. Converted to png and compressed with pngcrush. | 
          
          
           | Date | 
           ?  upgraded date May 16 2007 | 
          
          
           | Source | 
            The Hertzsprung Russell Diagram | 
          
          
           | Author | 
            Richard Powell  minor adjustments by: penubag ( original image) | 
          
          
           Permission ( Reusing this file) | 
           
             (See  Copyright) | 
          
         
         
         Licensing 
        
        Hertzsprung-Russell Diagram from Richard Powell's diagram at  http://(remove this, site is blacklisted)anzwers.org/free/universe/hr.html (with permission)
        
        
        
       File usage
       
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