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The image above is a 1/4 resolution view, 1002 x 668 pixels ~ 0.2 MB.

Click here for a 1/2 resolution view, 2004 x 1336 pixels ~ 1.5 MB.

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Image Information:

Date(s)	September 2, 2006
Optics	Takahashi BRC-250 10 inch f/5 Ritchey-Chrétien astrograph with a 1,268 mm focal length
Mount	Losmandy G-11 with Gemini Level 3 V 1.1
Camera	SBIG STL-11000M on loan from CSU Fresno Physics Department (thanks to Fred Ringwald)
Guiding	Internal selfguiding, no dithering
Field Scale	1.45 arc seconds / pixel
FOV	96 x 67 arc minutes
Camera Cooling	-15 C Regulated Thermoelectric
Filter(s)	10nm Ha filter by Custom Scientific
Location	Shaver Lake, California at 5610 feet.
Exposure(s)	Ha = 9 x 1200 seconds (3 hours total)
Binning	Ha = 1x1
Camera control	MaxIm DL 4 V 4.53
Processing software	MaxIm DL 4 V 4.53, Photoshop CS2 V 9.0
Image notes	This image is centered on Mexico of the North America Nebula.  This structure is also called the Cygnus Wall.  Processed images were fully calibrated, aligned, sigma clip combined and unsharp-masked.