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Which help scientists learn about the temperature and composition of stars

User BigBlueHat
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1 Answer

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Answer:

Spectroscopy

Step-by-step explanation:

Spectroscopy is a tool that scientists typically use to determine the mass, structur and the temperature of stars or other objects within the observable universe.

In general, scientists take a spectrum of the object they observe using a spectrograph. It is based on the theory that the lines of absorption at a given wavelength are special for each element.

Hence, the correct answer is spectroscopy or spectrograph.

User Grant Kamin
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