How Telescopes Work

by Craig Freudenrich, Ph.D.

Browse the article How Telescopes Work

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TELESCOPES

Meade TeleStar AZ-S Telescope

Optical Design: Refractor, Optical Diameter: 60 mm, Finderscope type: Optical, Focal Length: 700 mm, Mount Type: Altazimuth

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$50 - $50

Celestron PowerSeeker 114 EQ Telescope

Optical Design: Newtonians, Optical Diameter: 114 mm, Finderscope type: Optical, Focal Length: 900 mm, Mount Type: Equatorial

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$102 - $120

Meade ETX-70 (240 x 70mm) Telescope

Optical Design: Refractor, Optical Diameter: 70 mm, Focal Length: 350 mm, Max Useful Magnification: 240 x, Mount Type: Altazimuth

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$283 - $300