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telescopeguide.org
Reflecting vs. Refracting Telescopes: 7 Key Differences
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aplusphysics.com
Refracting vs Reflecting Telescopes - Physics blogs - APlusPhysics Community
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WordPress.com
Reflecting Telescopes vs. Refracting Telescopes | Edumac…
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astrojunkies.com
Reflecting vs Refracting Telescopes - Which is Better? - AstroJunkies.com

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