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Actually that is with me allowing for some expansion! The space allowance I have made for each scope is the same, and is allowing for my imaging mate buying something significantly larger than his 700 odd long refractor on a GEM in future, it is utterly rediculous for my own current gear which is a fork mounted SCT!
I based my guestimate (Which is still just a guestimate at the moment) on 700mm from the pier for the counterweight bar plus 300mm of fat to make a 2.0M diameter circle for the imaging rig to occupy. Add to that another meter of space to each side of the shed for easy walking space.
Following on from that I want nearly a meter between that exclusion area and the end walls and nearly a meter between the zones for each scope and it starts to look like 7M for the scopes, which I have a hard time justifying, I reckon I can justify a 10M long shed overall, 6M for the scopes and 4 for the warm room. I would love to build something to rival Keck, but something that houses everything I can think of right now will have to do from a financial point of view.
While I may not get general approval for it, I do want the warm room to have enough space for bunks in future as well as a couple of desks. Or at least a couple of nice chairs, if we are going to spend the night out there we might as well be comfy. I am also planning for the roll off roof to be set slightly above and to roll off over the fixed portion of the roof, that means no ugly structure hanging out one end to support the rolled off roof, but it also limits how much of the length the scope area can occupy.
I did have a simplification thought regards keeping stray light from the warm room at bay. Rather than a darkroom tardis door it would be simpler to use a sliding door with a switch that interrupts the warm room lights if the door is not shut (Plus a bypass switch for setup time when you want the door open and the lights on) The lighting I am planning to do with DC anyway so that would be easy to arrange myself.
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