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English

Since an increase of 5 magnitudes corresponds to a decrease in brightness by a factor of exactly 100, each magnitude increase implies a decrease in brightness by the factor 5√100 ≈ 2.512 (Pogson's ratio).

Chinese

因為星等增加5等,對應的光度實際是下降100倍,因此每增加1星等,光度的改變是5√100,相當於2.512(普格遜比率)。