Takahashi EM200 Temma2
CFW8a, Astronomik Ha-filter
L: 70min (600s subframes, 1x1) selfguided @ f/5, chip temp -10C
CCDSoftV5 (image reduction), Debloomer, Registar, Sigma, Photoshop CS (Levels & Curves, Minimum on bright stars)
Northern Blackforest, Germany
This object, also known as Sharpless125, is an emission nebula being excited to fluorescence by young new stars embedded in the gas cloud. The real size of IC5146 is about 19 lightyears.