Subject: NGC7000/IC5067/IC5070 -- North America Nebula and Pelican Nebula

Image FOV: 2.5 degrees square (150 minutes square)
Image Scale: 7.5 arc-second/pixel
Date: 2008/07/25
Exposure: 12 x 10 minutes on both East and West sections of mosaic = 4h total exposure, ISO800, f/4.8
Filter: Baader 7nm H-alpha filter
Camera: Hutech-modified Canon 30D
Telescope: SV80S 80mm f/6 + TV TRF-2008 0.8X reducer/flattener = 384mm FL, f/4.8
Mount: Astro-Physics AP900
Guiding: ST-402 autoguider and SV66 guidescope. MaximDL autoguiding software using 6-second guide exposures

Processing: Raw conversion and calibration with ImagesPlus (dark frames, bias frames, and flat frames); Aligning and combining with Registar; Gray conversion, levels, cropping/resizing, JPEG conversion with Photoshop CS. No sharpening or noise reduction. Mosaic created with Registar and Photoshop.

Remarks: Temperature at start/end: 55F/49F; SQM-L reading 21.42 at start of eastern exposures, 21.46 in middle of eastern exposures, 20.99 at end of eastern exposures (moonrise) 20.75 at start of western exposures, 20.36 at end of western exposures (moon was up)