Horsehead Nebula in hydrogen alpha

This is the Horsehead Nebula as seen through a hydrogen alpha narrowband filter (5nm). This image represents a compilation of 12 hours of imaging.

Technical Information       
Date:              December, 2014
Location:        Green Valley, Arizona
Telescope:      Takahashi FSQ-106EDX
Camera:         SBIG STT-8300M
Filters:            Astrodon Gen 2
Mount:            AstroPhysics 1200
Exposure:       H alpha = 12 hours unbinned
Software:        Acquisition: Maxim DL 5, TheSkyX, Pinpoint, CCD Commander
                       Processing: CCDStack, PhotoShop CS6 with various plugins