NGC6888 – the Crescent nebula

This one is a little noisy, but I was trying to pull out as much signal as possible and noise then becomes part of the game. A lot more data would be needed to get that down.

This is 3 hours of H-alpha data, 12x 15 min exposures on my Canon 6Da, iso 1600. Processed using AstroPixelProcessor. I love how the crescent is surrounded by all the other nebulosity. The crescent is actually formed by the collision of materials with varying speeds, coming off of an exploded star.