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04-10-2019
Physics

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If the difference in apparent magnitude between stars changes from the fourth magnitude to the third magnitude, the brightness has changed about _____ times.

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04-10-2019

Where sky objects are concerned, an increase of one magnitude is an increase in intensity of 2.15443... times.

That's the 6th root of 100. It was adopted for historical reasons that I'm too lazy to describe here.

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