I am in the process of building an observatory and have a few basic questions.
1. How far 'up' into the dome should the telescope sit? Should the end of the scope just clear the inside edge, sit below the bottom edge, or where in the middle? Is there a technical reason for placement or is it mostly based on aesthetics and peripheral design considerations?
2. Given a polar mounted scope, should the center of the pier be exactly in the center of the dome or should the optical zenith be the exact center? Does the 6"-8" difference really matter in the long run?
3. I am building the observatory as an adjunct to a larger barn. The rational is complex but non-negotiable. The observatory will be on the south side which will limit my north viewing to a minimun angle of ~35degrees. At 39degrees NLat, I should still be able to see Polaris for scope alignment. Does anyone see a problem in that?
Finally, if someone could share how one posts images, I'd be happy to upload drawings for comments.