double cluster-hartley2

The Double Cluster and Comet Hartley 2. Taken on Oct.8, 2010 with 105mm Sigma telephoto piggybacked on my 16inch F/4.5 Newtonian Telescope. Canon XSi DSLR (modded) 5x120sec. exp @ISO 1600 f/3.5, darks. Stacked with Deep Sky Stacker. Image processed with Digital Photo Professional, Adobe Photoshop CS2 & Astronomy Tools.

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