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30 January, 14:11

What is the ratio of brightness between a twelfth magnitude and fifteenth magnitude star?

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  1. 30 January, 14:31
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    The ratio of brightness is 16:1

    Magnitude in astronomy is defined as the measured value as of size, brightness or energy or rather the relative brightness/dimness of objects as seen from earth. The higher the magnitude the lower the comparative brightness of the star or planetary body.
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