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Table 8

uvbyβ-based quantities of NGC 1502 early-type stars.

Star Sp Type V b − y m1 c1 β E(b − y) c0 MV R AV V0 DM d (pc)
1 B0III 6.925 0.430 –0.138 0.054 2.578 0.550 –0.120 –0.056 –4.55: 2.79 2.08 4.85 9.40: 759:
2 O9IV+B0.5V 6.990 0.411 –0.124 0.067 2.591 0.529 –0.118 –0.039 – 2.77 1.98 – 9.95: 977:
11 B1.5V 10.880 0.531 –0.114 0.612 2.740 0.596 –0.065 0.493 –0.37 2.96 2.38 8.50 8.87 594
23 B3V 10.750 0.502 –0.066 0.440 2.702 0.584 –0.082 0.323 –0.99 3.03 2.40 8.35 9.34 738
44 B2V 10.800 0.498 –0.084 0.385 2.701 0.585 –0.087 0.268 –1.07 2.77 2.19 8.61 9.68 863
55 A2V:n 7.940 0.023 0.189 0.952 2.908 0.043 –0.020 0.943 +1.36 3.44 0.20 7.74 6.39 189
61 B2V 9.570 0.384 –0.078 0.291 2.654 0.479 –0.095 0.195 –1.93 2.75 1.78 7.79 9.73 882
7 B8 11.460 0.521 –0.119 0.634 2.685 0.583 –0.062 0.517 –1.35 2.76 2.17 9.29 10.64 1341
10 B3 10.080 0.441 –0.041 0.287 2.665 0.537 –0.096 0.180 –1.76 2.60 1.89 8.19 9.95 976
12 B2 9.395 0.428 –0.103 0.150 2.624 0.537 –0.110 0.042 –2.88 2.81 2.04 7.35 10.23 1113
16 B5V 11.635 0.504 –0.097 0.680 2.725 0.561 –0.057 0.567 –0.62 2.95 2.24 9.40 10.02 1009
26 B1.5Vn 9.647 0.482 –0.110 0.174 2.625 0.590 –0.109 0.056 –2.82 2.74 2.19 7.46 10.28 1140
30 B1V 9.663 0.490 –0.109 0.156 2.628 0.601 –0.111 0.036 –2.82 2.89 2.34 7.32 10.14 1067
35 B3V 10.453 0.436 –0.071 0.270 2.656 0.534 –0.098 0.163 –1.95 2.66 1.92 8.53 10.48 1245
36 B8V 9.803 0.464 –0.089 0.210 2.632 0.568 –0.104 0.096 –2.56 2.58 1.98 7.82 10.38 1190
37 B1.5V 9.650 0.440 –0.074 0.177 2.625 0.547 –0.107 0.067 –2.80 2.99 2.22 7.43 10.23 1112
40 B2V 11.155 0.446 –0.086 0.421 2.691 0.529 –0.083 0.315 –1.17 2.67 1.91 9.25 10.42 1212
42 B9 12.590 0.510 –0.078 0.960 2.770 0.539 –0.029 0.852 –0.17 2.86 2.08 10.51 10.68 1366
43 11.387 0.457 –0.073 0.492 2.700 0.532 –0.075 0.386 –0.99 2.83 2.03 9.35 10.35 1173
45 B4.5V 11.453 0.487 –0.083 0.544 2.718 0.558 –0.071 0.432 –0.70 2.97 2.24 9.21 9.92 962
49 B3V 10.707 0.452 –0.073 0.319 2.667 0.545 –0.093 0.210 –1.68 2.91 2.15 8.56 10.24 1117
52 B9 12.290 0.535 –0.073 0.977 2.755 0.563 –0.028 0.864 –0.44 3.06 2.32 9.97 10.40 1204

Notes.The WEBDA identification, MK classification and homogenized uvbyβ photometry V, b − y, m1, c1, and β are shown in the first part of the table. The color excesses E(b − y) and selected dereddened quantities and c0 are listed next, followed by the absolute magnitude MV. The polarization-based values of R and the extinction AV are included next, followed by the corrected apparent magnitude V0, the true distance moduli and distance in parsecs.

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