Archive for the ‘refractor telescope advantages and disadvantages’ tag
Refractor Telescope
How to Buy a Telescope : Telescope Buying Guide: Refracting Telescopes
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Portable refractor telescope Photo Mugs This is a refracting telescope with a portable stand. It has a mahogany tube with brass fittings as well as a brass draw tube and fittings. There is a small brass refracting telescope (finderscope) at the eyepiece-end of the barrel. The telescope belonged to Rev. George Fisher (1794-1873) who went to the Arctic as an Astronomer with Captain David Buchan in HMS Dorothea in 1818 and with Captain Wil… |
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Using the 28-inch refracting telescope at Royal Observatory, Greenwich Photo Mugs This telescope is the largest refractor in Britain and the seventh largest in the world. It was installed in 1893 and was used mainly for double-star observations. A characteristic onion-shaped dome, originally built in 1893 of papier mache and later rebuilt in fibreglass, covers it….. |
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Carson Red Planet Series Refractor Telescope with Tripod – 50 – 100 x 90mm – RP-200RP-200 Carson Red Planet Series Refractor Telescope with Tripod – 50 – 100 x 90mm… |
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Tele Vue 2 Everbrite Mirror Star (90°) Diagonal with Brass Clamp Ring -Black Satin Finish $285.00 Whiter and brighter images. Simply put, that is the benefit the Everbrite mirror coating. This exotic, dielectric, nonmetallic coating is 99% reflective across the full visual spectrum, resulting in the “whitest,” most natural image available. The coating is painstakingly applied to Pyrex with a surface accuracy of a 1/10 wave flatness. The Everbrite is offered in both 1¼” and 2″ models. The diag… |
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BUSHNELL 789971 VOYAGER(R) SKY TOUR(TM) 800MM X 70MM REFRACTOR TELESCOPE $222.57 … |