Table 1.
Star cluster properties obtained in this study.
| Name | αCM | δCM | ϖ | μα* | μδ | a | Rc | Mtot, Kroupa | Mtot, Salpeter | Nmember |
|---|---|---|---|---|---|---|---|---|---|---|
| [°] | [°] | [mas] | [mas yr−1] | [mas yr−1] | [pc] | [pc] | [102 M⊙] | [102 M⊙] | ||
| (1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) | (11) |
| Czernik 6 | 30.5313 | 62.8293 | 0.335 ± 0.015 | −1.19 ± 0.03 | −0.19 ± 0.06 |
 |
 |
4.9 | 7.7 | 191 |
| NGC 637 | 25.8828 | 64.1880 | 0.352 ± 0.009 | −1.26 ± 0.04 | −0.03 ± 0.04 |
 |
 |
10.1 | 15.9 | 291 |
| Riddle 4 | 32.0533 | 60.3979 | 0.354 ± 0.018 | −0.80 ± 0.04 | −0.50 ± 0.06 |
 |
 |
4.9 | 7.7 | 67 |
| Berkeley 7 | 28.5599 | 62.2259 | 0.340 ± 0.010 | −0.98 ± 0.04 | −0.22 ± 0.04 |
 |
 |
8.9 | 14.1 | 272 |
| NGC 581 | 23.3985 | 60.7205 | 0.361 ± 0.004 | −1.39 ± 0.04 | −0.60 ± 0.03 |
 |
 |
14.6 | 23.0 | 319 |
| NGC 659 | 26.1205 | 60.6937 | 0.309 ± 0.008 | −0.83 ± 0.03 | −0.30 ± 0.03 |
 |
 |
11.5 | 18.1 | 240 |
| NGC 654 | 26.0235 | 61.8833 | 0.325 ± 0.006 | −1.14 ± 0.05 | −0.33 ± 0.04 |
 |
 |
20.8 | 32.8 | 421 |
| Berkeley 6 | 27.7991 | 61.0746 | 0.327 ± 0.005 | −0.90 ± 0.05 | −0.53 ± 0.04 |
 |
 |
4.3 | 6.6 | 107 |
| NGC 663 | 26.5625 | 61.1930 | 0.341 ± 0.008 | −1.14 ± 0.04 | −0.33 ± 0.04 |
 |
 |
55.8 | 88.0 | 1079 |
Notes. (1) Cluster name; (2)–(3) Center of mass coordinates obtained from stars with mass M > 2 M⊙; (4) Mean cluster parallax; (5)−(6) Mean proper motions; (7) Scale length for Plummer model; (8) Core radius of King model; (9)−(10) Total system mass obtained assuming either a Kroupa or a Salpeter IMF; (11) Total number of Gaia sources flagged as cluster members.
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