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(mv - My + 5)/5.) destimate dactual = Is your calculated value an over- or underestimate? O overestimate underestimate
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(mv - My + 5)/5.) destimate dactual = Is your calculated value an over- or underestimate? O overestimate underestimate
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