File:Open cluster HR diagram ages.PNG

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Open_cluster_HR_diagram_ages.PNG ‎(552 × 439 pixels, file size: 40 KB, MIME type: image/png)

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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
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Date/TimeThumbnailDimensionsUserComment
current08:19, 10 September 2019Thumbnail for version as of 08:19, 10 September 2019552 × 439 (40 KB)ديفيد عادل وهبة خليل 2== {{int:filedesc}} == {{Information |Description={{en|1=HR diagrams for two open clusters, showing the main sequence turn-off at different ages.}} |Source={{own}} |Author=Created by User:Worldtraveller |Date= |Permission= |other_versions=thumb|gif }} == Reference == <!-- Journal article showing the color-magnitude diagrams for M67, NGC 188 and two others. --> *{{cite web | last=Richmond | first=Michael | date=2004-12-28 | url=http://spiff.rit.e...
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