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Spectral Lines Feature Summary

Worth a Look
Spectral Lines
Spectral Lines, from Physics 2000, and the pages that follow it show how observations of spectral lines led to the concept of atomic energy levels. For more on energy levels, see Ohio State's Measuring Light: Spectroscopy. To find out how stars are classified by their spectral type, visit the Sloan Digital Sky Survey's Energy Levels of Electrons.
January 16, 2008 - February 1, 2008