1. A star of what spectral class has the strongest (darkest) line? (Hint: See Figure 11-5): a. B2, b. A0, c. A5, d. G5, e. M0 2. Describe how the parallax method of finding a star’s distance is...

1. A star of what spectral class has the strongest (darkest)

line? (Hint: See Figure 11-5): a. B2, b. A0, c. A5, d. G5, e. M0

2. Describe how the parallax method of finding a star’s distance is similar to the binocular (two-eye) vision of animals.

3. How do astronomers use stellar parallax to measure the distances to stars?