Artificial illumination on a Kuiper Belt Object would stand out because it would vary less than reflected sunlight does when the world moved toward or away from the sun.
柯伊伯带天体上的人工照明之所以会显得特别突出是因为不管它转向或者转离太阳，其所反射的太阳光都不会变化很大。
Either way, it's the first time astronomers have observed this kind of surface detail on an object in the Kuiper Belt.
无论如何，这是科学家第一次在柯伊伯带天体上发现这种表面特征。
So far there are just five confirmed dwarf planets, including the most famous Kuiper Belt object, Pluto.
目前只有5颗小行星被确认为矮行星，包括柯伊伯带里最有名的星体——冥王星。
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