Physics, 05.04.2020 13:27 kiragor2545

A hydrogen line in a star's spectrum has a frequency of 6.17x10^14 Hz when stationary. In Rigel's spectrum, is it shifted downward by 4.26x10^10 Hz. What is Rigel's velocity relative to us? (Unit=m/s)

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A hydrogen line in a star's spectrum has a frequency of 6.17x10^14 Hz when stationary. In Rigel's sp...