Sky watcher skyliner 400p flextube 406mm 16 f1800 synscan go to telescope combines the power of a large optical tube the extreme portability of the patented collapsible flextube design and synscan computerised go to technology the new skyliner flextube synscan dobsonians bring over 42 900 celestial objects right in front of your eyes and automatically track them as they move across the night sky its as easy as a walk in the park the patented dual encoder design allows you to manually m