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Table 1

Coordinates, photometric data, and association membership for the sample stars, from GHV09.

ID RA [deg] DEC [deg] ASSOC V B − V Q SpT Notes
J2000.0 J2000.0

64 066 16.258634 2.157802 147 19.03 −0.21 −0.97 O3 III((f))
65 426 16.262785 2.167927 162 19.62 −0.20 −0.91 O6 III offslit, O5-6 V (Bresolin et al. 2007)
69 476 16.277063 2.158948 185 18.89 −0.22 −0.97 O6.5 III
36 611 16.186651 2.109095 44 19.46 −0.13 −0.91 O7 III-V multiple?
75 661 16.307566 2.139771 197 19.79 0.18 −1.07 O8 III
67 684 16.270335 2.159043 175 19.02 −0.21 −0.91 O8.5 I composite?
60 782 16.249088 2.153501 127 19.61 −0.22 −0.91 O9.5 III blend?
61 331 16.250685 2.153629 127 19.14 −0.21 −0.85 O9.7 II elongated shape but single detection in GHV09
71 708 16.286754 2.152986 192 19.78 −0.02 −1.04 lateO III+neb
60 269 16.247649 2.153412 127 20.49 −0.29 −0.82 B0.5 I offslit
60 882 16.249384 2.096583 135 19.44 −0.14 −0.84 B0.5 I-III
27 381 16.163216 2.146994 −1 18.42 −0.07 −0.83 B1-1.5 I
35 071 16.182901 2.084464 −1 18.78 0.65 −0.99 B2.5 III V39-like colours. Double?
44 736 16.206282 2.106804 56 19.89 −0.12 −0.81 offslit
67 063 16.268118 2.163212 176 19.65 −0.04 −0.96
68 456 16.273197 2.153952 175 21.67 0.19 −1.35 WR-candidate

Notes.Stars not belonging to any OB association are marked [−1] in colum ASSOC. The spectral types provided in column SpT were derived in this work.

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