Thread: Cone Nebula
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Old 23-01-2011, 12:30 PM
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peter_4059 (Peter)
Big Scopes are Cool

peter_4059 is offline 		 
Join Date: Jun 2007
Location: SE Tasmania
Posts: 4,574
Thanks Darren - which scope did you use for the Horse Ha image? I'm trying to get a feel for the exposure length/camera temp/scope aperture/object magnitude relationship.
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