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OpenStudy (emogirl100):
An astronomer would most likely use the Doppler effect to measure the color of a star. measure the parallax of a star. measure the brightness of a star. measure the shift in the emission spectrum of a star.
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OpenStudy (keigh2015):
Ok what do you think it is?
OpenStudy (emogirl100):
i thought it was color right
OpenStudy (keigh2015):
I think so
OpenStudy (anonymous):
No the correct answer is to measure the shift in the emission spectrum of a star
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