Finally after 6 months of clouds I got a change to capture a deep sky object! This is the first object I capture with my 12inch newtonian, it looks like this OTA coupled with the Atik 460EX is a good match for light polluted skies. The individual 20m Ha frames were noise free and with excellent dynamic range.
Please take a look to the result:
– Telescope TPO (GSO) 12 inch f/4
– Corrector GPU Aplanatic Newtonian
– Camera Atik 460EX
– Mount Celestron CGE pro
– SX filterwheel
– SX OAG
– Astrodon 5nm filters
– 2 panel mosaic
– 3x20m Ha per panel
– 1x30m OIII per panel
– 5x1m RGB per panel (stars colors)
Hi resolution version of the image here: