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Олег Давыдов (Редактор отдела «Интернет и СМИ»)
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A. After referring a lot of sources over the internet and also during the assembly process of the telescope, it is advised to maintain an offset of ≥ 20mm from the size of primary mirror i.e., for a 6" or 150mm primary mirror size, 150 + (2*20) = 190mm should be the minimum inner diameter of your PVC tube.
stack manipulation, and no calls into the runtime. The binding stack
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