High Quality Content by WIKIPEDIA articles! There are many ways of categorizing telescopes, and within major classifications, there are usually many variations due to professional, amateur, and commercial sub-types. Telescopes can be classified by optical design, such as refracting telescopes. Telescopes can also be classified by where they are place, such as space telescopes. One major determining factor is type of light, or particle being observed including devices referred to as "telescopes" that do not form an image or use optics.

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