This is a picture of a dark nebula Barnard 276 and Barnard 79, opaque clouds of dust and gas that block the light of stars behind them.
http://www.astropix.com/B276_B79.html
Click on the link to see a larger version with more information.
This is a stack of 35 x 240-seconds for a total of 140 minutes of exposure.
It was shot with an STC Optics Astro-Multispectra light-pollution filter.