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This question was created from spectral_classification_stars_lab(1).doc


Originally,r astronomers classified those stars with the strongest hydrogen lines as 'A' stars, stars with the next
strongest lines as 13' stars, the next strongest 'C' and so on. Eventually some letters were deemed unnecessary and
dropped from the classification sequence. The letter assigned to a star is termed its spectral class. Assign a
spectral class to each panel by following the procedure below: a) In the second column of Table 2, list the panel numbers from sn‘ongest Hull line at the top to weakest Hull line
at the bottom. b} Each panel corresponds to one of the following classes of stars: A,B,F,G,K and 0. We're skipping some letter here.) In the third column mark the letter that corresponds to each panel using the lettering scheme described
above. Table 2
Panel Number Spectral Class
strongest H0. line to weakest (Letter Designation)

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