which spectrum tells you that the star is moving away from you the fastest?
which spectrum tells you that the star is moving away from you the fastest?
Answer
Brief Explanations:
When a star is moving away from an observer, its spectrum shows a redshift. The greater the redshift, the faster the star is moving away. By comparing the spectra, we look for the one with the most - pronounced redshift.
Answer:
The spectrum with the greatest redshift indicates the star moving away the fastest. Without seeing the actual spectral details, we cannot determine which of A, B, C, or D it is. If we assume we can visually assess the redshift in the given spectra, we would choose the one with the most - shifted spectral lines towards the red - end of the spectrum.