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#Mon Aug 09 11:50:40 CEST 2010
Text__b0dbUKObEd-WfYQ0GneCwQ_text=<p>Spectral analysis opens up a new window to the sky for astronomers. Because the spectrum of a luminous object depends on its composition, it provides information about the chemical constitution of the stars.</p>
Text__b0dbUKObEd-WfYQ0GneCwQ_title=Spectrograph