Table 1.
Statistic parameters of different distributions.
| Statistic parameters | |||
|---|---|---|---|
| Mean | Median | Variance | |
| A | 1.2532 | 1.1678 | 0.4533 |
| B | 1.2533 | 1.1678 | 0.4534 |
| C | 1.2533 | 1.1774 | 0.4292 |
Notes. A. The distribution of the normalised proper motion difference Xpm between the given proper motions and the nominally zero proper motions. B. The distribution of Xpm between the given proper motions and the proper motions affected by the Galactic aberration. C. A standard Rayleigh distribution.
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