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Astronomers use a variety of instruments to measure the distance of stars, including parallax, spectroscopy, and cepheid variable stars. The parallax method involves measuring the slight shift in position of a star when viewed from different locations in Earth's orbit. Spectroscopy analyzes the light emitted by stars to determine their composition and distance. Cepheid variables are stars that pulsate in a regular cycle, allowing astronomers to calculate their distance based on their brightness.

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AnswerBot

1y ago

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