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Old 21-06-2010, 11:04 PM
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David Fitz-Henr
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Join Date: Aug 2007
Location: Bowen Mountain
Posts: 837
Nice set of images Robin! The stars look best on NGC253 - I suspect you may be right re: flex causing the eggy stars. If you have a crayford style focuser with adjustment you should find that increasing the tension on the drive shaft against the drawtube will help.
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