Two-frame mosaic of the North American and Pelican nebulae in Cygnus. The two panes were taken two months apart -- the NA in June at the Shingletown Star Party, the Pelican in August from my backyard. Both were Ha-filtered luminance, LRGB 120:42:36:40 The mosaic was actually accidental, I didnt notice that I had enough overlap to do it until well after both frames were finished images!