Hello all,
The image attached shows the first foray into the construction of a dome observatory for my 22" equatorial Newtonian. The slab is 5.3m in diameter and the concrete will arrive in the next week or two. The dome will be constructed form 25mm square tubing rolled to 5.1m diameter and assembled by welding. Overall height will be 4.1m and the timeline from slab pour to first light is two months....
Richard