Lab 19: sky: star spectra-red shift

Using the spectroscope, look at the hydrogen spectra, looking for the 4 lines.
Look these up and see how they fit into the Balmer series.
Look up the doppler effect, which is usually associated with sound, like hearing a siren coming towards or away from you (shorter or longer waves)
The distance to stars can be calculated by their red shift, moving the hydrogen spectra to the red side (longer waves)
Look up a few stars with their red shifts, and explain why theirs is higher than others, in other words, WHY are the farthest stars more red shifted?
How is this measured at Keck?
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