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refractor

Refracting Telescopes for Astronomy

June 15, 2020 by Brian Ventrudo Filed Under: Astronomy Equipment

A top-quality refractor telescope (credit: Televue)

When the members of the great unwashed masses think of an astronomical telescope, they usually think of a refractor. With a large glass objective lens at the top of the tube and an eyepiece down at the bottom, refractors are the most robust and conceptually simplest type of telescope. They offer amazingly crisp views of the Moon and planets and double stars. But they are not for everyone. This short article goes through the pros and cons of refractors for astronomy and helps you decide if such a telescope is right for you [Read more…] about Refracting Telescopes for Astronomy

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Filed Under: Astronomy Equipment beginners, refractor, telescopes

A Requiem for Yerkes Observatory

August 3, 2018 by Brian Ventrudo Filed Under: History and Famous Astronomers

The main dome that houses the 40″ refractor at Yerkes Observatory in Williams Bay, WI.

“All things lovely will have an ending”, wrote author Conrad Aiken, and the end is coming soon for the venerable Yerkes Observatory on Lake Geneva in the pleasant resort village of Williams Bay, Wisconsin. The University of Chicago, which operates the observatory, announced earlier this year that Yerkes will close on October 1, 2018, and all public tours and scientific and educational activities will cease after more than 120 years of operations [Read more…] about A Requiem for Yerkes Observatory

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Filed Under: History and Famous Astronomers observatory, refractor, yerkes

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