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Figure 1:
Finding chart of the WFPC2 fields considered for this
work. The region is
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Figure 2: Vector-point diagram of the proper motions in equatorial coordinates, combining all the fields. Open circles with error bars represent the selected reference galaxies. Dots represent the stars; a circle at 3 mas/yr separates cluster members from field objects. The arrow is the adopted absolute proper motion of NGC 6397. |
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Figure 3: Spatial distribution of stars with radial velocity measurement. The circles indicate the radial distances of 5 and 10 arc min from the center of the cluster. |
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Figure 4: Radial velocities of the observed sample of stars as a function of magnitude. |
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Figure 5: Calculated orbits for assumed distances 1.8, 2.0, 2.2, and 2.4 kpc. |
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