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Focal Length: How To Detemine For A Parabolic Mirror

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Posted by Jim Dromi/">Jim Dromi on October 29, 1999 04:18:27 UTC

I need help. I am brand new to astronomy. I purchased an 8" reflective telescope, in kit form. I have never assembled a telescope before and have questions and need some help. I have a diagram, depicting componentry location. One obviously missing dimension is the focal length for the primary mirror. Any help would be greatly appreciated. This is a Christmas present for my wife. I am running out of time. H E L P !!!! Thanks, Jim Dromi

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