Thanks all, I guess I'll know more when I clear the garden of rubbish, brambles and the like. The hedge is conifer at least 9ft high from my side and 7ft high from the road side, looking west, but it's half dead so I'm inclined to chop at least 3ft off from my side. I've no near neighbours the side where I'm planning on putting the dome. My property is a bungalow so if I put it in position 2, it would look over the roof east wards. It's really complicated isn't it on where best. Supposedly clear here Monday night so I'll plan to sit in those two places to see what I can see. Neighbours might freak out, lol but needs must.