New Perseus, which erupted in 1901, increased its brightness from 12m to 2m in two days. How many times on average

New Perseus, which erupted in 1901, increased its brightness from 12m to 2m in two days. How many times on average did it become brighter in one day? A decrease in stellar magnitude by one unit means an increase in brightness by 100 ^ 1/5 ≈ 2.512 times

A change in brightness by 5 ^ m corresponds to a change in the luminosity of a star by 100 times.In two days, the brightness increased by 10 ^ m, therefore, in one day – by an average of 5 ^ m, so that on average the brightness increased 100 times per day.

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