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Sunday, August 12

Amateur Telescope Making on a Grand Scale !

If you are thinking of building your own telescope then a Dobsonian design is a popular choice, though not usually quite as large as this monster built by Dr. Erhard Hänssgen in 2002. With a 42 inch diameter mirror, it is thought to be the largest portable telescope in the world (The secondary is as big as the main mirror in my telescope!). It may not hold the title for much longer though as there is an even bigger one under construction!

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