The modern accuracy of measurements allows the residual/peculiar (Galactocentric) velocity of the supermassive black hole (SMBH) in our Galaxy, Sgr A*, on the order of several kilometers per second. We integrate possible orbits of the SMBH along with the surrounding nuclear stellar cluster (NSC) for a barred model of the Galaxy using modern constraints on the components of the SMBH Galactocentric velocity. Is is shown that the range of oscillations of the SMBH+NSC in a regular Galactic field in the plane of the Galaxy allowed by these constraints strongly depends on the set of central components of the Galactic potential. If the central components are represented only by a bulge/bar, for a point estimate of the SMBH Galactocentric velocity, the oscillation amplitude does not exceed 7 pc in the case that a classical bulge is present and reaches 25 pc if there is no bulge; with SMBH velocity components within the 2σ significance level, the amplitude can reach 15 and 50 pc, respectively. However, when taking into account the nuclear stellar disk (NSD), even in the absence of a bulge, the oscillation amplitude is only 5 pc for the point estimate of the SMBH velocity, and 10 pc for the 2σ significance level. Thus, the possible oscillations of the SMBH + NSC complex from the confirmed components of the Galaxy’s potential are mostly limited by the NSD, and even taking into account the uncertainty of the mass of the latter, the oscillation amplitude can hardly exceed 13 pc = 6′.

现代的测量精度允许我们银河系 Sgr A* 中超大质量黑洞 (SMBH) 的残余/特殊（星系中心）速度约为每秒几公里。我们将 SMBH 的可能轨道与周围的核星团 (NSC) 结合起来，使用对 SMBH 半心速度分量的现代约束来构建银河系的棒状模型。结果表明，SMBH+NSC 在这些约束条件下允许的银河平面内规则银河场中的振荡范围在很大程度上取决于银河势的中心分量集。如果中心分量仅由凸起/条表示，则对于 SMBH 半心速度的点估计，在存在经典凸起的情况下，振荡幅度不超过 7 pc，如果没有凸起，则达到 25 pc；SMBH 速度分量在 2σ 显着性水平内，幅度可以分别达到 15 和 50 pc。然而，当考虑到核星盘 (NSD) 时，即使在没有凸起的情况下，SMBH 速度的点估计的振荡幅度也只有 5 pc，而 2σ显着性水平。因此，SMBH + NSC 复合体从已确认的星系势分量中可能发生的振荡大多受到 NSD 的限制，即使考虑到后者质量的不确定性，振荡幅度也几乎不能超过 13 pc = 6 '。