My final Narrowband Hybrid of M27. RGB was replaced using channel swap (except for a small percentage of green channel) with OIII as Blue, OIII as Green and H-Alpha as Red. No SII used in this version. Then I used H-Alpha and OIII as luminance. Finally I used the stars from the RGB image for natural star color. Total Exposure 13.7 hours Location: DownUnder Observatory, Fremont MI Date of Shoot 18th, 21st, 22nd and 23rd June 2012 Exposure: RGB 6x10 mins ea, H-Alpha 9x40 mins, OIII 10x40 mins unbinned Camera: QHY9M monochrome CCD, cooled to -30C StarlightXpress Color Filter Wheel Scope: Astronomy Technologies Astro-Tech 10" f/8 Ritchey-Chrétien astrograph Astro Tech 2" Field Flattener. Autoguided using QHY5 autoguider, StarlightXpress Ultra Slim Off Axis guider Paramount GT-1100S German Equatorial Mount (with MKS 4000) Image Aquisition software Maxim DL5 Stacking software CCDStack Post Processed with Photoshop CS5