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en.wikipedia.org/wiki/Refracting_telescope

A refracting telescope (also called a refractor) is a type of optical telescope that uses a lens as its objective to form an image The refracting telescope design was  ...

lco.global/spacebook/refracting-telescopes

How Refraction WorksLight travels through a vacuum at its maximum speed of about 3.0 × 108 m/s, and in a straight path. Light travels at slower speeds through  ...

www.astronomynotes.com/telescop/s2.htm

Jan 7, 2011 ... The part of the telescope that gathers the light, called the objective, determines the type of telescope. A refractor telescope uses a glass lens as ...

ecuip.lib.uchicago.edu/multiwavelength-astronomy/optical/history/03.html

His telescope was a big hit in Padua and Venice, and the Paduan Senate gave him 1000 florins per year and a professorship for the invention, which could be ...

www.telescope.com/Telescopes/Refractor-Telescopes/pc/1/10.uts

Our refractor telescopes provide crisp, high-contrast views of bright targets like the Moon, planets, and terrestrial subjects. Shop online!

www.dummies.com/education/science/astronomy/reflecting-vs-refracting-stargazing-telescopes

By Steve Owens. When you're ready to invest in a stargazing telescope, start by looking at the different models of telescope tube – the bits with the optics in.

amazing-space.stsci.edu/resources/explorations/groundup/lesson/scopes/galileo/index.php

Galileo wasn't the first to build the device that would become known as the telescope, but he seems to have been the first to use it to study the heavens. In 1608 ...

www.pas.rochester.edu/~blackman/ast104/refracting.html

Optical telescopes may be divided into two general categories: (1) refracting telescopes that use lenses to gather and focus light, and (2) reflecting telescopes  ...

www.amazon.com/Telescope-Refractors/b?ie=UTF8&node=499152

Results 1 - 24 of 495 ... Online shopping for Refractors - Telescopes from a great selection at Electronics ... Orion AstroView 90mm EQ Refractor Telescope Kit.