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Published byClaribel Washington Modified over 9 years ago
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Tools of Astronomy
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Telescopes Most collect and focus light. Two types- 1. optical 2. radio 2. radio
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1. Optical Telescopes Collect light Uses mirrors and lenses to make objects appear larger and brighter.
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2 Types of Optical Telescopes
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Refracting Telescope Convex lenses gather light and focus it in a small area. Used by Galileo in 1609.
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Reflecting Telescope Light enters the end and reflects on mirrors. Make observations through eyepiece. Used by Isaac Newton 1668
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Observatories Large buildings that store large optical telescopes
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2. Radio Telescopes Receives radio waves from objects in space. Can be used in all weather and at all times of day
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Satellites orbit around Earth collect information while in space Not affected by Earth’s atmosphere
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Space Probes Travel out of Earth’s orbit to collect info instruments are based on the goals of the “mission”
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Spectroscopes separates light of stars into bands of color. scientists can guess the gases/elements of the star.
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Reading Assignment- With your tablemate or alone, read pages 94-100 J in read pages 94-100 J in the pink book. the pink book.
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