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Table B.6.
Proper motions relative to NGC 346 and proper-motion dispersions for the clusters NGC 346 and BS 90 and for the selected populations of pre-MS, MS, and RGB field stars.
| ID | δμα cos δ | δμδ | σμα cos δ | σμδ | N |
|---|---|---|---|---|---|
| [mas yr−1] | [mas yr−1] | [mas yr−1] | [mas yr−1] | ||
| NGC 346 | 0.000±0.001 | 0.000±0.001 | 0.028 | 0.025 | 945 |
| BS 90 | −0.016±0.001 | 0.153±0.001 | 0.036 | 0.036 | 2220 |
| pre-MS I | −0.032±0.005 | 0.019±0.004 | 0.083 | 0.075 | 345 |
| pre-MS II | 0.004±0.004 | 0.007±0.004 | 0.045 | 0.044 | 162 |
| MS I | −0.024±0.002 | 0.005±0.002 | 0.059 | 0.062 | 2136 |
| MS II | 0.188±0.003 | −0.034±0.004 | 0.079 | 0.088 | 582 |
| RGB | −0.031±0.003 | 0.024±0.008 | 0.084 | 0.089 | 713 |
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