The bright reddish object at upper right is the center of our galaxy, residing 100 light-years away from the Arches cluster.

右上方明亮的微红色天体是银河系的中心，距离星团100光年。

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The Arches is the densest star cluster in our Milky Way galaxy and resides in our galaxy's crowded core.

拱门星团是我们的星系中最密集的恒星群，它位于银河系拥挤的中心区。

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The researchers saw the loop when looking at the Arches Cluster, a star-forming region close to the Milky Way's centre.

BBC: Arches Cluster, Leicester

But it is not known whether the loop structure is physically associated with the Arches Cluster or just happens to be in the same line of sight.

BBC: Arches Cluster, Leicester