Hubble law how did astronomers gather the information needed to establish the law?

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07-05-2017
Physics

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Hubble law how did astronomers gather the information needed to establish the law?

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FlanScar FlanScar · Answer 1 · 2017-05-07T08:06:59+02:00

FlanScar FlanScar

07-05-2017

They measured the wavelength of light emitted by stars using spectrometers and found it was being redshifted.
This implied the stars were moving away aka the space between the scientists and the star was expanding

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