Witch Head Nebula IC2118
Date: 31st December, 2016 to 3rd January, 2017Scope: TMB 80/480
Flattener: TS 2"
Mount: Skywatcher Heq5 pro
Autoguider: M-gem
Camera: Astro A7S
Position: 廣州
Time: 17hr 12min (344x3min)
Filter: No Filter
Have Flat, Bias and Dark
拍了17 小時, 效果仍不理想.
http://www.hkastroforum.net/files/wizard3_117.jpg
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