We have detected seven stars with a common proper motion that are located within 25 of the globular cluster NGC 6522 in the Baade's window field of the Galactic bulge. We argue that these stars are members of the cluster, and derive a weighted mean proper motion and heliocentric radial velocity of l = 1.4 ± 0.2 mas yr-1, b = -6.2 ± 0.2 mas yr-1 and = -28.5 ± 6.5 km s-1. We rederive the distance to NGC 6522 [(0.91 ± 0.04)R0, where R0 is the Galactocentric distance] and metallicity ([Fe/H] = -1.28 ± 0.12), making use of recent revisions in the foreground extinction toward the cluster (AV = 1.42 ± 0.05). We find the spatial velocity of the cluster and conclude that the cluster stays close to the Galactic center, and may have experienced significant bulge/disk shocking during its lifetime.
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机译：我们检测到七颗恒星共同运动，它们位于银河膨胀的Baade窗场中球状星团NGC 6522的25个范围内。我们认为这些恒星是星团的成员，并且得出加权平均固有运动和日心向径向速度分别为l = 1.4±0.2 mas yr-1，b = -6.2±0.2 mas yr-1和= -28.5±6.5 km s-1。我们重新利用到NGC 6522的距离（（0.91±0.04）R0，其中R0是半中心距）和金属性（[Fe / H] = -1.28±0.12），并利用对集群的前景色消亡的最新修正（ AV = 1.42±0.05）。我们发现了星团的空间速度，并得出结论，该星团停留在银河系中心附近，并且在其生命周期内可能经历了明显的凸起/磁盘撞击。
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