by Emil Ivanov
www.emilivanov.com
Date: December 2010, January 28 -30, 2011
Location: Varna, Bulgaria
Telescope: ASA 12 inch Astrograph at f/6.8
Mount: ASA DDM85
Camera: SBIG STL11000M
Exposure time: total 24 hours ( SII=16x30min, Ha=16x30min, OIII=16x30min,) Binning 1X1
Filters: - Baader 8nm narrowband
Processing: Stacked and processed in PixInsight. Further elaboration in Photoshop,.