Shot in luminance using the QHY9 on the AT10RC Total Exposure time 6.5 hours Image Details Location: DownUnder Observatory, Fremont MI Date of Shoot 14th, 17th and 21st March 2012 26 x 15 min LUM binned 2x2 Camera: QHY9M monochrome CCD 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 Deep sky Stacker Registered with Registar Post Processed with Photoshop CS5 The Pinwheel Galaxy also known as Messier 101 or NGC 5457 a face-on spiral galaxy at a distance of 21 million light-years away in the constellation Ursa Major Clear Skies Terry Hancock www.downunderobservatory.com