This is a combination of 30 images, each of 60 seconds The images were taken with a Alta-U9 attached to an Meade RCX400 12" F/7.29 telescope. Each of the images was corrected with a dark frame and a flat field.
A DSI Pro was atttached to an ETX-90 for guiding.
Using a Hydrogen Alpha Filter
Click here for the full resolution image