Here is NGC 6888 in a wavelength dominated by glowing, ionized oxygen. It is much fainter than the Ha, partly because my camera is less sensitive in this part of the spectrum.
Telescope: Orion 6" f/5 Imaging Newtonian and Astro-Tech Coma Corrector (eff. at f/5.5)
Camera and Exposure: 15x20' thru the SXVF-H9, Alnitak Flat-man flats
Filter: Astronomik 12nm OIII
Guiding: SX Lodestar and SX OAG
Mount: Takahashi NJP
Software: Nebulosity, Maxim DL, Photoshop CS3
Location: The Woodlands, TX
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