M51, the Whirlpool galaxy in the constellation Ursa Major. This image was taken on June 06, 2011 six days after French amateur astronomer Amédée Riou's discovery of SN2011dh, a Type II supernova in one of the arms of this iconic galaxy. 15x300sec fits exposures captured and combined in Nebulosity v2.4.0 software. Finishing touches done in PhotoShop. Telescope: Orion 8" 1000mm f4.9 Newtonian reflector. Mount: Orion Atlas EQ-G Guide Scope: Meade 800mm f10 reduced to f5 with Atik x.5 focal length reducer (ADM rings). Imaging Camera: Mead DSI Color 16bit camera with Peltier cooler modification. Guide Camera: Meade DSI Pro monochrome 16bit camera. Imaging camera in prime focus. Filtration used: Baader UV/IR Cut filter · Date/Time 2011:06:06 21:34:21 · Resolution 800 x 583

Posted on

Sunday 27 September 2020

Albums

• Backyard Astronomy Gallery / Galaxies / M51 (Whirlpool Galaxy)

Visits

7626