Here is another narrowband version of the Crescent, this time using the Canada France Hawaii Telescope palette (CFHT Palette) technique, the colors are assigned with Ha = Red, OIII = Green, SII = Blue Total Exposure time 30 hours Date of Shoot 22nd, 23rd, 25th July, 26th through to 8th Aug 2012 Exposures: OIII 28 x 30 mins binned 2x2 SII 24 x 30 mins binned 2x2 HA 8 x 30 mins unbinned Camera: QHY9M monochrome CCD, cooled to -30C www.astrofactors.com StarlightXpress Color Filter Wheel Scope: Astronomy Technologies Astro-Tech 12" f/8 Ritchey-Chrétien astrograph Autoguided using StarlightXpress Lodestar 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 Processing Photoshop CS5