All Figures

Figure 1: Apparent ellipses representing the orbital elements for HIP 11352, HIP 14075, HIP 14230, HIP 14669, HIP 106972, and HIP 111685 ( top left to bottom right). BTA speckle data are indicated by filled circles, other interferometric data by open circles, Hipparcos first measurements by triangles. Residual vectors for all measures are plotted, but in most cases they are smaller than the points themselves. The orbital motion direction is indicated by an arrow. The solid line shows the periastron position, while the dot-dashed line represents the line of nodes. North is up and east is to the left. The dashed circle has a radius of  .

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