Table 4: Positions, reddened absolute magnitudes, EB-V coefficients, and initial masses of the brightest stars of NGC 588. The extinction is discussed in Sect. 6.3.2, and the initial masses, in Sect. 6.4aValues eventually set to 0.11.

Star #
RA Dec  M547  M439  M336  M170 M469  EB-V   $m_{\rm ini}$
  01h32m +30 $\hbox{$^\circ$ }$             ($M_{\odot }$)

1
45.23s 38'58.4'' -6.63 $\pm$ 0.04 -7.42 $\pm$ 0.03 -8.14 $\pm$ 0.04 -9.34 $\pm$ 0.04 -7.26 $\pm$ 0.06 0.11 $\pm$ 0.03  55.3
2 45.56s 38'54.4'' -6.03 $\pm$ 0.04 -6.91 $\pm$ 0.04 -7.74 $\pm$ 0.03 -9.32 $\pm$ 0.04 -6.68 $\pm$ 0.08 0.00 $\pm$ 0.03  55.5
3 45.50s 39'07.0'' -6.12 $\pm$ 0.04 -6.91 $\pm$ 0.03 -7.55 $\pm$ 0.04 -8.57 $\pm$ 0.05 -7.09 $\pm$ 0.06 0.11 $\pm$ 0.02  43.8
4 45.31s 39'05.7'' -5.60 $\pm$ 0.05 -6.45 $\pm$ 0.04 -7.08 $\pm$ 0.04 -8.24 $\pm$ 0.07 -6.19 $\pm$ 0.09 0.11 $\pm$ 0.03  40.1
5 46.81s 39'06.9'' -5.34 $\pm$ 0.07 -6.22 $\pm$ 0.05 -6.89 $\pm$ 0.06 -8.26 $\pm$ 0.08 -5.91 $\pm$ 0.14 0.08 $\pm$ 0.04  38.1
6 45.37s 38'53.4'' -5.34 $\pm$ 0.07 -6.19 $\pm$ 0.07 -6.89 $\pm$ 0.06 -8.33 $\pm$ 0.06 -5.57 $\pm$ 0.13 0.08 $\pm$ 0.04  37.1
7 45.58s 38'55.5'' -4.86 $\pm$ 0.05 -5.90 $\pm$ 0.05 -6.55 $\pm$ 0.05 -8.29 $\pm$ 0.06 -5.02 $\pm$ 0.08 0.02 $\pm$ 0.04  32.1
8 45.37s 39'06.4'' -4.80 $\pm$ 0.07 -5.59 $\pm$ 0.06 -6.45 $\pm$ 0.06 -7.73 $\pm$ 0.10 -5.36 $\pm$ 0.15 0.11 $\pm$ 0.02a 33.1
9 45.53s 38'54.9'' -4.64 $\pm$ 0.07 -5.49 $\pm$ 0.06 -6.35 $\pm$ 0.05 -7.96 $\pm$ 0.07 -5.04 $\pm$ 0.15 0.07 $\pm$ 0.01a 32.1
10 45.60s 38'55.6'' -4.56 $\pm$ 0.06 -5.31 $\pm$ 0.06 -6.17 $\pm$ 0.06 -7.46 $\pm$ 0.09 -4.40 $\pm$ 0.08 0.12 $\pm$ 0.01a 30.1
11 45.59s 38'55.4'' -4.27 $\pm$ 0.07 -5.26 $\pm$ 0.06 -5.78 $\pm$ 0.09 -7.46 $\pm$ 0.09 -4.85 $\pm$ 0.09 0.09 $\pm$ 0.01a 29.1
12 45.47s 38'55.7'' -4.42 $\pm$ 0.06 -5.19 $\pm$ 0.05 -6.02 $\pm$ 0.06 -7.51 $\pm$ 0.08 -4.94 $\pm$ 0.15 0.10 $\pm$ 0.01a 29.1
13 45.55s 38'55.3'' -4.28 $\pm$ 0.07 -5.03 $\pm$ 0.07 -5.93 $\pm$ 0.07 -7.39 $\pm$ 0.09 -4.77 $\pm$ 0.17 0.10 $\pm$ 0.01a 27.1
14 45.59s 38'55.7'' -4.02 $\pm$ 0.09 -4.90 $\pm$ 0.07 -5.39 $\pm$ 0.09 -6.93 $\pm$ 0.13 -4.79 $\pm$ 0.09 0.12 $\pm$ 0.02a 26.1
15 46.07s 39'02.5'' -4.10 $\pm$ 0.06 -4.79 $\pm$ 0.06 -5.51 $\pm$ 0.07 -6.54 $\pm$ 0.14   0.18 $\pm$ 0.02  27.1
16 45.60s 38'55.4'' -3.87 $\pm$ 0.08 -4.75 $\pm$ 0.07 -5.37 $\pm$ 0.08 -6.93 $\pm$ 0.11 -4.45 $\pm$ 0.09 0.10 $\pm$ 0.02a 24.4
17 45.80s 39'02.0'' -3.71 $\pm$ 0.07 -4.50 $\pm$ 0.07 -5.32 $\pm$ 0.07 -6.63 $\pm$ 0.13 -3.87 $\pm$ 0.27 0.11 $\pm$ 0.02a 21.9
18 44.61s 38'52.6'' -3.35 $\pm$ 0.11 -4.28 $\pm$ 0.08 -4.88 $\pm$ 0.09 -6.50 $\pm$ 0.12 -3.04 $\pm$ 0.50 0.08 $\pm$ 0.02a 20.1
19 45.42s 39'08.5'' -3.36 $\pm$ 0.08 -4.22 $\pm$ 0.08 -5.00 $\pm$ 0.08 -6.16 $\pm$ 0.17 -3.33 $\pm$ 0.42 0.12 $\pm$ 0.02a 19.7
20 45.05s 38'55.2'' -3.28 $\pm$ 0.08 -4.19 $\pm$ 0.07 -5.01 $\pm$ 0.09 -6.66 $\pm$ 0.11 -3.60 $\pm$ 0.36 0.05 $\pm$ 0.02a 19.5
21 45.54s 38'55.9'' -3.31 $\pm$ 0.11 -4.14 $\pm$ 0.08 -4.86 $\pm$ 0.10 -6.44 $\pm$ 0.14   0.08 $\pm$ 0.02a 19.1
22 45.20s 38'59.3'' -3.19 $\pm$ 0.13 -4.07 $\pm$ 0.10 -4.72 $\pm$ 0.14 -6.08 $\pm$ 0.19   0.11 $\pm$ 0.03a 18.6
23 45.10s 38'58.9'' -3.05 $\pm$ 0.08 -3.99 $\pm$ 0.08 -4.71 $\pm$ 0.10 -6.13 $\pm$ 0.13 -3.50 $\pm$ 0.35 0.08 $\pm$ 0.02a 18.1
24 45.67s 38'57.4'' -3.09 $\pm$ 0.09 -3.97 $\pm$ 0.09 -4.55 $\pm$ 0.12 -6.08 $\pm$ 0.14   0.09 $\pm$ 0.02a 17.9
25 45.16s 39'04.2'' -3.05 $\pm$ 0.11 -3.87 $\pm$ 0.11 -4.15 $\pm$ 0.15 -5.41 $\pm$ 0.20   0.18 $\pm$ 0.03a 17.2
26 45.24s 38'56.2'' -2.94 $\pm$ 0.09 -3.81 $\pm$ 0.09 -4.37 $\pm$ 0.12 -5.94 $\pm$ 0.15   0.09 $\pm$ 0.02a 16.9
27 45.36s 38'54.6'' -2.86 $\pm$ 0.09 -3.76 $\pm$ 0.08 -4.42 $\pm$ 0.11 -5.87 $\pm$ 0.16   0.09 $\pm$ 0.03a 16.6
28 45.21s 38'55.8'' -2.85 $\pm$ 0.11 -3.72 $\pm$ 0.09 -4.28 $\pm$ 0.14 -5.65 $\pm$ 0.21   0.12 $\pm$ 0.03a 16.3
29 46.08s 39'01.7'' -2.93 $\pm$ 0.10 -3.71 $\pm$ 0.10 -4.03 $\pm$ 0.13 -4.71 $\pm$ 0.32   0.25 $\pm$ 0.04  20.0
30 45.20s 38'54.2'' -3.07 $\pm$ 0.18 -3.62 $\pm$ 0.10 -4.12 $\pm$ 0.14 -5.74 $\pm$ 0.19   0.13 $\pm$ 0.04a 15.6
31 45.62s 38'58.6'' -2.75 $\pm$ 0.10 -3.57 $\pm$ 0.09 -4.47 $\pm$ 0.11 -5.91 $\pm$ 0.20   0.06 $\pm$ 0.03a 15.5
32 45.46s 38'54.5'' -2.64 $\pm$ 0.10 -3.51 $\pm$ 0.09 -4.26 $\pm$ 0.12 -5.69 $\pm$ 0.19   0.08 $\pm$ 0.03a 15.1
33 45.85s 39'07.1'' -2.52 $\pm$ 0.11 -3.34 $\pm$ 0.10 -4.07 $\pm$ 0.12 -5.36 $\pm$ 0.24   0.10 $\pm$ 0.04a 14.2
34 45.33s 38'56.7'' -2.39 $\pm$ 0.10 -3.33 $\pm$ 0.10 -4.10 $\pm$ 0.12 -5.73 $\pm$ 0.17   0.03 $\pm$ 0.03a 14.3
35 45.80s 39'11.5'' -2.34 $\pm$ 0.11 -3.30 $\pm$ 0.09 -4.01 $\pm$ 0.13 -5.67 $\pm$ 0.19   0.03 $\pm$ 0.03a 14.1
36 45.72s 39'10.6'' -2.33 $\pm$ 0.13 -3.27 $\pm$ 0.11 -3.89 $\pm$ 0.13 -5.34 $\pm$ 0.23   0.08 $\pm$ 0.04a 13.9
37 45.51s 38'55.9'' -2.42 $\pm$ 0.10 -3.22 $\pm$ 0.09 -3.70 $\pm$ 0.14 -5.26 $\pm$ 0.24   0.10 $\pm$ 0.04a 13.6
38 46.15s 38'56.7'' -2.32 $\pm$ 0.10 -3.14 $\pm$ 0.11 -3.74 $\pm$ 0.13 -4.85 $\pm$ 0.28   0.14 $\pm$ 0.04a 13.2
39 45.22s 38'54.7'' -2.39 $\pm$ 0.16 -3.09 $\pm$ 0.14 -3.77 $\pm$ 0.16 -4.89 $\pm$ 0.29   0.14 $\pm$ 0.05a 12.9
40 45.12s 38'55.8'' -2.40 $\pm$ 0.13 -3.04 $\pm$ 0.12 -3.84 $\pm$ 0.15 -5.12 $\pm$ 0.24   0.11 $\pm$ 0.04a 12.7
41 45.62s 38'54.2'' -2.27 $\pm$ 0.11 -3.00 $\pm$ 0.11 -3.69 $\pm$ 0.13 -5.07 $\pm$ 0.25   0.10 $\pm$ 0.04a 12.6
42 45.62s 38'57.8'' -2.06 $\pm$ 0.13 -2.99 $\pm$ 0.12 -3.67 $\pm$ 0.17 -5.17 $\pm$ 0.25   0.05 $\pm$ 0.04a 12.6
43 45.61s 38'55.1'' -2.39 $\pm$ 0.19 -2.97 $\pm$ 0.17 -3.60 $\pm$ 0.19 -5.06 $\pm$ 0.30   0.11 $\pm$ 0.05a 12.4
44 45.33s 38'55.8'' -2.16 $\pm$ 0.13 -2.95 $\pm$ 0.12 -3.70 $\pm$ 0.13 -5.37 $\pm$ 0.26   0.03 $\pm$ 0.04a 12.4
45 44.74s 38'55.8'' -1.78 $\pm$ 0.15 -2.94 $\pm$ 0.13 -3.07 $\pm$ 0.20 -5.11 $\pm$ 0.29   0.01 $\pm$ 0.05a 12.4
46 45.33s 38'53.0'' -2.23 $\pm$ 0.12 -2.91 $\pm$ 0.12 -3.66 $\pm$ 0.16 -4.92 $\pm$ 0.28   0.11 $\pm$ 0.05a 12.1
47 45.27s 38'58.6'' -1.98 $\pm$ 0.14 -2.89 $\pm$ 0.13 -3.56 $\pm$ 0.17 -5.11 $\pm$ 0.25   0.04 $\pm$ 0.04a 12.1
48 45.58s 38'55.8'' -2.32 $\pm$ 0.20 -2.88 $\pm$ 0.19 -3.94 $\pm$ 0.13 -5.25 $\pm$ 0.26   0.07 $\pm$ 0.05a 12.1
49 45.01s 38'50.9'' -1.90 $\pm$ 0.15 -2.84 $\pm$ 0.12 -3.54 $\pm$ 0.18 -5.34 $\pm$ 0.28   0.00 $\pm$ 0.05a 12.0
50 45.39s 38'55.6'' -1.91 $\pm$ 0.15 -2.83 $\pm$ 0.14 -3.50 $\pm$ 0.16 -4.92 $\pm$ 0.30   0.05 $\pm$ 0.05a 11.8
51 45.23s 38'54.9'' -2.04 $\pm$ 0.14 -2.78 $\pm$ 0.15 -3.37 $\pm$ 0.15 -4.34 $\pm$ 0.44   0.16 $\pm$ 0.07a 11.5
52 45.18s 38'53.0'' -1.81 $\pm$ 0.15 -2.70 $\pm$ 0.13 -3.26 $\pm$ 0.16 -5.06 $\pm$ 0.26   0.01 $\pm$ 0.05a 11.4
53 44.86s 38'57.5'' -1.60 $\pm$ 0.17 -2.59 $\pm$ 0.14 -3.01 $\pm$ 0.23 -4.79 $\pm$ 0.31   0.01 $\pm$ 0.06a 10.9
54 45.67s 38'54.7'' -1.67 $\pm$ 0.15 -2.49 $\pm$ 0.17 -3.18 $\pm$ 0.19 -4.77 $\pm$ 0.29   0.02 $\pm$ 0.05a 10.5
55 45.66s 38'53.2'' -1.36 $\pm$ 0.18 -2.27 $\pm$ 0.17 -2.94 $\pm$ 0.19 -4.48 $\pm$ 0.42   0.00 $\pm$ 0.07a 9.6
56 44.96s 38'55.7'' -1.30 $\pm$ 0.19 -2.09 $\pm$ 0.19 -2.84 $\pm$ 0.20 -4.43 $\pm$ 0.48   0.00 $\pm$ 0.08a 9.0

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