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File:Open cluster HR diagram ages.gif

Open_cluster_HR_diagram_ages.gif(561 × 445 pixels, file size: 21 KB, MIME type: image/gif)


English: HR diagrams for two open clusters, showing the main sequence turn-off at different ages.
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Author Created by User:Worldtraveller


  • Richmond, Michael (2004-12-28). Estimating Distances across our Galaxy. Rochester Institute of Technology. Retrieved on 2008-11-29.—See the two plots near the end of the page.
  • Maeder, André (1974). " Stellar evolution near the main sequence: on some systematic differences between cluster sequences and model calculations.". Astronomy & Astrophysics 32: 177–190. Retrieved on 2008-11-28.


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