Full resolution image here.
Of course, this is part of the Veil Nebula, a supernova remnant in Cygnus. This is just the Ha (and perhaps a bit of NII). I've wondered whether the arcs help show the location of the original blast (relative to what remains).
Telescope: Astro-Tech AT111EDT and William Optics AFR-IV (eff. at f/5.6)
Camera and Exposure: SXVF-H9 12x1200" (6nm Ha) + 12x900" (12nm Ha+NII), Alnitak Flat-man flats
Filter: Astronomik 6nm and 12nm Ha[+NII]
Guiding: SX Lodestar and SX OAG
Mount: Takahashi NJP
Software: Nebulosity, Maxim DL, Photoshop CS3
Location: The Woodlands, TX
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