Question

Two stars are recorded as having a magnitude difference of 5. What is the ratio of their
brightnesses?

Answer 1

Answer on question #54958, Physics / Astronomy — Astrophysics

Question Two stars are recorded as having a magnitude difference of 5. What is the ratio of their brightnesses?

Solution Difference in brightness can be found as

$F_{2}/F_{1}\approx 2.512^{\Delta m}=2.512^{5}\approx 100$

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