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A Note For You. Astronomers use telescopes to: Collect light from objects in the sky Magnify objects (make them look bigger) There are two kinds of telescopes: Refracting telescopes: use lenses to focus light Reflecting telescopes: use mirrors to focus light
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A Note For You ... Astronomers use telescopes to: • Collect light from objects in the sky • Magnify objects (make them look bigger) There are two kinds of telescopes: • Refracting telescopes: use lenses to focus light • Reflecting telescopes: use mirrors to focus light Astronomers use prisms (and other things) to separate light into different colours Astronomers use digital cameras to take pictures of objects