Capella is a 0.0 magnitude star, if it were compared to a 5.0 magnitude star, how many times brighter is Capel?

lla...

a. 1000 times brighter

b. 5.0 times brighter

c. Capella iks the dimmer of the two stars

d. 100 times brighter

e. none above

1 Answer

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  • Zardoz
    Lv 7
    9 years ago
    Favorite Answer

    d. 100 times brighter

    One magnitude is 100^(-1/5) ≈ 1/2.512

    Capella is 2.512^0 = 1, and the comparison star is 2.512^-5 ≈ 1/100.

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