Astronomy Quiz
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GRAVITY, MOTION & LIGHT
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A major challenge for large, ground-based reflecting telescopes is atmospheric turbulence ('seeing'), which often limits the effective resolution to ~1 arcsecond, regardless of the telescope's theoretical diffraction limit. High-quality apochromatic refractors with apertures around 15 cm have a theoretical resolution of ~0.8 arcseconds. What does this imply about their relative performance on a typical night?
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