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Amazon.com: Choosing and Using a Refracting Telescope (The Patrick Moore Practical Astronomy Series): 9781441964021: English, Neil: Books
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Making a Refractor Telescope: How to Design, Grind, Polish, Test, Correct and Mount a Doublet Lens: Remer, Norman: 9780943396620: Amazon.com: Books
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SKONYON Telescope for Kids& Beginners, 70mm Aperture 300mm Astronomical Refractor Telescope - Walmart.com
![Amazon.com: Choosing and Using a Refracting Telescope (The Patrick Moore Practical Astronomy Series): 9781441964021: English, Neil: Books Amazon.com: Choosing and Using a Refracting Telescope (The Patrick Moore Practical Astronomy Series): 9781441964021: English, Neil: Books](https://m.media-amazon.com/images/I/51JGFtvBO2L._SR600%2C315_PIWhiteStrip%2CBottomLeft%2C0%2C35_PIStarRatingFOUR%2CBottomLeft%2C360%2C-6_SR600%2C315_ZA20%2C445%2C290%2C400%2C400%2CAmazonEmberBold%2C12%2C4%2C0%2C0%2C5_SCLZZZZZZZ_FMpng_BG255%2C255%2C255.jpg)
Amazon.com: Choosing and Using a Refracting Telescope (The Patrick Moore Practical Astronomy Series): 9781441964021: English, Neil: Books
![An old engraving showing a refracting telescope, Washington DC, USA c.1880. It is from a Victorian mechanical engineering book of the 1880s. In 1870 the federal government gave the head of the An old engraving showing a refracting telescope, Washington DC, USA c.1880. It is from a Victorian mechanical engineering book of the 1880s. In 1870 the federal government gave the head of the](https://c8.alamy.com/comp/2D6KJ8Y/an-old-engraving-showing-a-refracting-telescope-washington-dc-usa-c1880-it-is-from-a-victorian-mechanical-engineering-book-of-the-1880s-in-1870-the-federal-government-gave-the-head-of-the-united-states-naval-observatory-50000-to-build-it-alvan-clark-and-his-son-alvan-graham-clark-built-the-naval-observatory-an-achromatic-refractor-with-a-26-inch-66-centimetre-lens-doublet-in-1873-it-was-located-on-a-hill-north-of-the-lincoln-memorial-along-the-potomac-river-in-washington-dc-this-40-foot-long-telescope-was-the-biggest-refracting-telescope-in-the-world-in-its-day-2D6KJ8Y.jpg)