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$PDF$/READ/DOWNLOAD Choosing and Using a Dobsonian Telescope: Everything you need to know to get started in astronomy and astrophotography READ NOW : https://bambangbooks.blogspot.com/id/154658059X Dobsonian telescopes are the most popular beginner telescope and first came to prominence in the 1960's. They have provided many thousands of amateur sky-watchers with a low-cost, dependable telescope which allows them to see deep into the night skies. There are numerous types of this popular teles