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Old 21-06-2012, 09:43 PM
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John Hothersall
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John Hothersall is offline
 
Join Date: Apr 2007
Location: Thornlands, Brisbane.
Posts: 1,346
Ara Globular 6397

SPX350 F4.53 +F12.3, ATK-16HR + Mintron, Baader RGB filters

This globular is the second closest to us after M4 at 7,200lyrs and is one of 20% of globs showing core collapse. Central density was worth a closer look with the sensitive mintron at 4300mm fl, unfortunately bad seeing hindered closer look.

ATK-16HR, RGB-10x3min each.
Mintron, L=17min RGB=6min each in 2.56 sec subs.

Thanks, John.
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