Object: ..... NGC2359 - Thors Helmet - Narrowband false colours
Date: ..... 09.01.+14.03.2011
Mount: ..... Losmandy G11 on Berlebach Uni-4c
Optics: ..... Skywatcher MN190, 190mm f5.3 Maksutov-Newton Telescope
Filters: ..... Baader 7nm Ha and 8nm OIII
Camera: ..... Sigma3200 with SX USB 2" Filter wheel
Chip temperature: .... -20°C regulated
Exposure: ..... Ha: 18x600s, O3: 20x400s
Binning: 1x1(Ha) , 2x2 (O3)
Processing: ..... Stacking (Lights, Darks, Bias), Noise Reduction, DDP, colour synthesis (L-R-G-B=Ha-Ha-O3-O3) and adjustement, sharpening, all with Imagesplus 3.8 and Astroart 4.0
Guiding: ..... Autoguiding with TS 9mm OAG, Meade DSI Pro and GPUSB/PHD
Comments: poor seeing, medium transparency, Moon at 50%
110314_ngc2359_thors-helmet
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