Waiting for answer This question has not been answered yet. You can hire a professional tutor to get the answer.
QUESTION
A hydrogen line in a star's spectrum has a frequency of 4.57*10^14 Hz when stationary. In Altair's spectrum, it is shifted upward by 3.98*10^10 Hz.
A hydrogen line in a star's spectrum has a frequency of 4.57*10^14 Hz when stationary. In Altair's spectrum, it is shifted upward by 3.98*10^10 Hz. What is Altair's velocity relative to us?
