by Bob Gillette
The Wall is a dense, meandering feature of the North America Nebula, NGC 7000. Imaged 1 and 15 Agusut 2009 with an ASA 12-inch f/3.6 astrograph and a StarlightXpress H9C camera, on an AP900 mount. Guided with Starfish on a Hutehc 60mm guidescope. Acquired in MaxIm 4.62. Processing by Bob Gillette and Frank Tomaszewski in Photoshop. Exposure: 2 hours from central New Hampshire.