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Table 1

Summary of Galactic BHG properties.

Star Spectral Co-ordinates V band Cluster/
type RA Dec. (mean) association

BP Cru B1 Ia+ 12 26 37.56  −62 46 13.2 10.68
HD 169454 B1 Ia+ 18 25 15.19  −13 58 42.3 6.65
ζ1 Sco B1.5 Ia+ 16 53 49.73  −42 21 43.3 4.78 Sco OB1
HD 190603 B1.5 Ia+ 20 04 36.17 +32 13 07.0 5.66
HD 80077 B2.5 Ia+ 09 15 54.79  −49 58 24.6 7.57 Pismis 11
Cyg OB2 #12 B3-4 Ia+ 20 32 40.96 +41 14 29.3 11.47 Cyg OB2
Wd1-5 WNL/B Ia+ 16 46 02.97  −45 50 19.5 17.49 Wd1
Wd1-13 WNL/B Ia+ 16 47 06.45  −45 50 26.0 17.19 Wd1
Wd1-7 B5 Ia+ 16 46 03.62  −45 50 14.2 15.57 Wd1
Wd1-33 B5 Ia+ 16 47 04.12  −45 50 48.3 15.61 Wd1
HD 183143 B7 Iae 19 27 26.56 +18 17 45.2 6.92
HD 199478 B9 Iae 20 55 49.80 +47 25 03.6 5.73
HD 168625 B8 Ia+ 18 21 19.55  −16 22 26.1 8.44
Wd1-42a B9 Ia+ 16 47 03.25  −45 50 52.1 Wd1
HD 168607 B9 Ia+ 18 21 14.89  −16 22 31.8
HD 160529 B8-A9 Ia+ 17 41 59.03  −33 30 13.7

Notes. No V-band magnitude is available for Wd1-42a, while both HD 168607 and 160529 are known large amplitude photometric variables (Sect. A.6).

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