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April 23, 2014

Homework Help: Physics-Astronomy

Posted by Mark on Monday, November 16, 2009 at 11:01am.

A high-velocity star HVS 1 is moving at 600 km/s, 0.2% speed of light. Assuming the HVS 1 is moving away from us, and that its velocity is oriented entirely along our line of sight, determine the Doppler shift of the Ha spectral line (6562.8 Angstrom) produced by this star. Is the spectral line located to the red or to the blue of its rest wavelength? Any help would be appreciated. Thanks.

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