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Quiz on Spectra and What They Can Tell Us

  1. A spectrum can tell us





  2. You attempt to measure the spectra of a star but notice some absorbtion lines mixed in which are not doppler shifted by the same amount as the emission lines of the star. What can you conclude from this?





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Imagine the Universe! is a service of the High Energy Astrophysics Science Archive Research Center (HEASARC), Dr. Alan Smale (Director), within the Astrophysics Science Division (ASD) at NASA's Goddard Space Flight Center.

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Responsible NASA Official:Phil Newman
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Last Updated: Monday, 30-Jan-2006 12:11:59 EST

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