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Question

Analyze and Interpret

1. Describe the pattern on your graph.

2. The Sun's spectral type is about G2. Use your chart to predict the

Sun's absolute magnitude.

3. Vega's spectral type is A0. Predict Vega's absolute magnitude.

4. Predict the absolute magnitude of a star whose spectral type is

B5.

Conclude and Communicate

5. Summarize how you can use this pattern to predict a main-

sequence star's absolute magnitude if you know its spectral type.

Fig: 1