Answered: If interstellar dust makes an RR Lyrae… | bartleby

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**Question:**

If interstellar dust makes an RR Lyrae variable star look 2 magnitudes fainter than the star should, by how much will you over- or underestimate its distance? (Hint: Use the magnitude-distance formula \( d = 10^{(m_V - M_V + 5)/5} \).)

\[
\frac{d_{\text{estimate}}}{d_{\text{actual}}} = \quad
\]

**Is your calculated value an over- or underestimate?**

- ○ overestimate
- ○ underestimate

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