You can observe the following spectrum of the object. the hα line peak is clearly visible:
(a) mark the first four spectral lines of hydrogen (hα, hβ, hγ, hδ) in the spectrum.
(b) determine the radial velocity and the direction of the object’s movement.
(c) calculate the distance to the observed object.
(d) what possible type of object is your team observing?
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Answer:
The correct answer is a option A
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