For example, a difference of 3.2 means that one object is about 19 times as bright as the other, because Pogson's Ratio raised to the power 3.2 is approximately 19.05.
例如，星等相差3.2等意味著其中一個的亮度比另一個亮19倍，因為普格遜比率是指數函數提高3.2，大約是19.05倍。