在观察软件目录里的一个星系时，玛丽安注意到一个亮度极高的亮点正远离星系中心，很可能是一个超大质量黑洞。

Looking at one galaxy in the Catalog, Marianne noticed that the point of light was offset from the centre and yet was so bright that it could well be associated with a supermassive black hole.

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它的中心是由3个年轻恒星组成的星系群，其亮度超过太阳千倍。

At its heart is a cluster of three deeply embedded young stars, which are each several thousand times brighter than the sun.

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半路上的亮度，芦笛岩是西北七公里的桂林的中心。

Half way up the Brightness Hill, Reed Flute Cave is seven kilometers northwest of the center of Guilin.

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