Figure 15-1
Examine the accompanying graph (Figure 15-1) . Harlow Shapley did not know that there are two categories of Cepheid variables; he was only familiar with those such as d Cepheii. Because of this, some of the Cepheid variables he observed ____.

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The Answer of    Figure 15-1
Examine the accompanying graph (Figure 15-1) . Harlow Shapley did not know that there are two categories of Cepheid variables; he was only familiar with those such as d Cepheii. Because of this, some of the Cepheid variables he observed ____.

Figure 15-1 Examine the Accompanying Graph (Figure 15-1) . Harlow Shapley Did