I Opened this (2010-2011) season by photographing the M57 Ring Nebula in 8/9/2010. At night was an excellent opportunity to test CG-4 autoguider port´s operating. Weather was little bit foggy but it didn´t matter for testing. Picture is cropped down about 50%, because dimension of M57 is only about 1,4x1,0 arc min.Camera: Canon 30D
Optics: Celestron Omni 150 f/5
Mount: CG-4 with Celestron motor drive
Guider: QHY5 & WO ZS66 APO +PHDGuiding
Exposures: 16x120s, ISO1600
Processing: DSS & PS
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