Cave Nebula (Caldwell 9)

Another nebula I photographed over the holidays, but just now had a chance to process, was the Cave Nebula (C9).  This sprawling nebula complex contains emission, reflection and dark nebula.  The stars in this region are relatively young, some less than 100,000 years.    

Photo Details
December 11, 2014
Orion 8" Astrograph on VX Mount
Nikon D3100 Camera - ISO 1600
Baader MPC Mark III Multi-Purpose Coma Corrector
Skyglow filter
Autoguider
58 sub-frames at 3.0 minutes/frame
Total Exposure Time = 2 hours 54 minutes
Image Stacking in Deep Sky Tracker
Image Processing in PhotoShop