AST-062beginner

Refracting & Reflecting Telescopes: Structures & Vocabulary

Refracting telescopes use lenses to bend light to a focus, while reflecting telescopes use curved mirrors. Small refractors are robust and provide high-contrast views, while large research observatories use reflective designs to achieve large apertures and flexible instrument placement.

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Refracting & Reflecting Telescopes: Structures & Vocabulary

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AST-061Refracting & Reflecting Telescopes: Foundations→

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AST-063Refracting & Reflecting Telescopes: Physical Mechanisms→

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Refracting telescopes use lenses to bend light to a focus, while reflecting telescopes use curved mirrors.

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Refraction changes ray direction because light changes speed in glass, and different wavelengths refract by different amounts, causing chromatic aberration unless corrected.

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