Table 5
Results of astrometric fits to globular clusters.
| Red camera | Visual camera | ||||
|---|---|---|---|---|---|
| Cluster | scale (mas/px) | Rotation (°) | Scale (mas/px) | Rotation (°) | Reference |
| NGC 104 (47 Tuc) | 89.03 ± 0.07 | + 1.222 ± 0.012 | 89.15 ± 0.07 | − 1.329 ± 0.013 | 1 |
| NGC 104 (47 Tuc) | 88.92 ± 0.07 | + 1.215 ± 0.010 | 89.04 ± 0.07 | − 1.335 ± 0.013 | 2 |
| NGC 5139 (ω Cen) | 88.87 ± 0.05 | + 1.206 ± 0.004 | 89.01 ± 0.05 | − 1.352 ± 0.005 | 2 |
| NGC 5139 (ω Cen) | 88.88 ± 0.05 | + 1.296 ± 0.006 | 89.02 ± 0.05 | − 1.258 ± 0.007 | 3 |
| NGC 5139 (ω Cen) | 88.87 ± 0.05 | + 1.200 ± 0.005 | 89.01 ± 0.05 | − 1.353 ± 0.008 | 4 |
| NGC 5139 (ω Cen) | 88.87 ± 0.05 | + 1.205 ± 0.004 | 89.01 ± 0.05 | − 1.352 ± 0.006 | 5 |
| NGC 5286 | 88.91 ± 0.06 | + 1.322 ± 0.007 | 89.06 ± 0.06 | − 1.236 ± 0.008 | 2 |
| NGC 6093 (M80) | 88.90 ± 0.08 | + 1.333 ± 0.007 | 89.03 ± 0.08 | − 1.222 ± 0.006 | 2 |
| NGC 6121 (M4) | 88.86 ± 0.05 | + 1.337 ± 0.005 | 89.01 ± 0.05 | − 1.216 ± 0.012 | 2 |
| NGC 6121 (M4) | 88.85 ± 0.04 | + 1.340 ± 0.006 | 89.00 ± 0.05 | − 1.213 ± 0.011 | 6 |
| NGC 6388 | 88.91 ± 0.04 | + 1.378 ± 0.011 | 89.13 ± 0.15 | − 1.177 ± 0.027 | 2 |
| NGC 6541 | 88.92 ± 0.06 | + 1.374 ± 0.022 | 89.10 ± 0.09 | − 1.182 ± 0.011 | 2 |
| NGC 6652 | 88.98 ± 0.09 | + 1.327 ± 0.021 | 89.15 ± 0.09 | − 1.213 ± 0.040 | 2 |
| NGC 6656 (M22) | 88.94 ± 0.06 | + 1.330 ± 0.009 | 89.10 ± 0.10 | − 1.232 ± 0.027 | 2 |
Notes. The data from Anderson et al. (2008) are available at http://www.astro.ufl.edu/~ata/public_hstgc/
References. The “Reference” column lists the source of the reference astrometric positions. (1) McLaughlin et al. (2006); (2) Anderson et al. (2008); (3) Bellini et al. (2009b); (4) Bellini et al. (2010); (5) Anderson & van der Marel (2010); (6) Libralato et al. (2014).
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