1. If interstellar dust makes an RR Lyrae variable star look 1 magnitude fainter than it should,… 1 answer below »

1. If interstellar dust makes an RR Lyrae variable star look 1 magnitude fainter than it should, by how much will you overestimate its distance? (Hint: Use the magnitude-distance formula in Chapter 13.) 2. If you assume that a globular cluster 4.0 arc minutes in diameter is actually 25 pc in diameter, how far away is it? (Hint: Use the smallangle formula, Chapter 3.)  

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