NGC 7000 North America nebula
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2011 August 28th from Dengie marshes
Essex, UK
Canon 20Da DSLR camera with Canon 200mm telephoto lens at f 4.5
Tracking on an Astrotrac mount.
57 mins total exposure 19 no x 3 minute exposures stacked using Deep Sky Stacker
800 ISO No filters and 2 dark frames
Good transparent night and not too cold at 13 deg C. Had planned to take more dark frames but didn't for some reason!!
2003 August 31st from Dengie Marshes,
Essex, UK
Standard SLR camera at 540mm prime focus of 100mm Televue APO refractor.
Tracking on a Losmandy G11 mount ST4 autoguided.
Kodak Elite II colour 200 ISO film no filters
1 x 20 minute exposure scanned and contrast stretched in Photoshop
