By John Stephen Hicks

ISBN-10: 0387766030

ISBN-13: 9780387766034

Almost each functional astronomer finally aspires to have a set, everlasting observatory for their telescope. A roll-off roof or dome observatory is the reply for the most well-liked domestic observatory layout. construction a Roll-Off or Dome Observatory may help you opt no matter if to embark at the enterprise and may definitely raise your enthusiasm for the project.

The writer, either an beginner astronomer and a pro panorama architect, solutions the various universal questions requested approximately observatory building, overlaying the subsequent topics:

• Zoning, and by-law standards universal to so much states, cities and municipalities

• the place to find the observatory

• the way to tailor the observatory in your specific needs

• instruments and structural parts required

• attainable diversifications in design

• find out how to mix the constitution with different buildings (incorporating a backyard patio below the gantry in

the roll-off roof observatory, for example)

This absolutely specified outlines step by step building, with specialist targeted diagrams for every section of construction.

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Extra info for Building a Roll-Off Roof Observatory. A Complete Guide for Design and Construction

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Elevation and Seeing Second in importance is the elevation of the proposed site in relationship to the surrounding landscape. Obviously, the higher the chosen site is with respect to land around it, the more available is the southern horizon for viewing. Also, a higher site will tend to reduce air turbulence near the ground, particularly if the observatory is on a knoll or hill top. This is largely because rising, hot air from the surrounding landscape is confined somewhat to lower elevations. Every meter above the surrounding base plane will normally improve seeing.

Above grade with the concrete pier footing top another 2 in. higher, whereas a sono-tube-plus joist style floor construction will place the pier footing top about 2 ft above grade. 1). In my own case, I used a column of concrete in a sono-tube to about one-half the height of the proposed pier above the floor, completing the rest with the same length of equal diameter thick-walled aluminum pipe. I machined heavy 1½″ thick aluminum flanges as caps over each end, recessed to fit into the pipe, and machine-bolted into the tapped flanges through the pipe walls.

5). Place nuts on both sides of the plywood template, securing the threaded rods at the correct length to anchor into both the concrete pier below and the metal pier base above. When the pour reaches the top of the sono-tube footing, plunge the threaded-rod-bolt assembly into the concrete, center and level it. Trim off any excess concrete that oozes out from under the template. This is a very critical step, so perform it carefully. Before pouring concrete, make sure that there is sufficient room between the top of the sono-tube and the inserted rebar cage.

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Building a Roll-Off Roof Observatory. A Complete Guide for Design and Construction by John Stephen Hicks

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