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Table A.1

Massive star candidates in each of 11 areas.

Area SIMBAD id DR3Name Gmag Gaia–dist ST STcandidate MGB MGb
[mag] [kpc] [mag]
1 HD 240171 2009853997984924928 9.83 2.1 ± 0.1 B1V O7–B2 −4.92 −3.11
1 2009947873089335552 12.22 2.9 ± 0.1 B1–B4 −3.23 −1.42
1 2009960998509358080 12.67 2.4 ± 0.1 B2–B7 −2.37 −0.56
1 2009947048455625984 12.70 2.3 ± 0.1 B2–B7 −2.25 −0.43
1 2009964434483174016 12.97 2.60.2+0.3Mathematical equation: $\[2.6_{-0.2}^{+0.3}\]$ B2–B8 −2.31 −0.24

2 [RHM2011] 4 2013247301330572288 14.12 2.40.2+0.3Mathematical equation: $\[2.4_{-0.2}^{+0.3}\]$ B2-3V B0–B3 −3.75 −1.76
2 [RHM2011] 5 2013247301330571008 15.54 2.40.1+0.2Mathematical equation: $\[2.4_{-0.1}^{+0.2}\]$ B2V B2–B7 −2.31 −0.52

3 LS III +60 58 2013907351903934080 10.53 2.6 ± 0.1 B0 O8–B2 −4.65 −2.95
3 LS III +60 56 2013906492910288512 10.55 2.9 ± 0.1 B0.5III O7–B2 −4.89 −3.21
3 LS III +59 52 2013809048689021312 10.56 2.9 ± 0.1 OB- O7–B2 −4.84 −3.17
3 LS III +60 57 2013901304589830784 10.78 3.0 ± 0.1 B1.5 O8–B2 −4.67 −3.03
3 Cl Mrk 50 31 2013906561629760768 11.03 3.0 ± 0.1 B2 O8–B2 −4.51 −2.82
3 Cl* Mrk 50 BVC 6 2013906492910285824 11.76 2.8 ± 0.1 B1.5V B0–B3 −3.6 −1.89
3 Cl Basel 3 1 2014094264572576128 12.22 2.8 ± 0.1 B1.5V B1–B4 −3.13 −1.49
3 TYC 4279-1525-1 2014112170299931904 12.26 2.8 ± 0.1 B1–B4 −3.09 −1.44
3 Cl Basel 3 30 2013906492910286464 12.30 2.7 ± 0.1 B2V B1–B4 −3.2 −1.34
3 2013807223335231488 12.35 2.30.2+0.3Mathematical equation: $\[2.3_{-0.2}^{+0.3}\]$ B1–B6 −2.74 −0.77
3 2013998714442541696 13.00 2.9 ± 0.2 B2–B7 −2.51 −0.71
3 2013901338949569536 13.32 3.0 ± 0.1 B2–B7 −2.14 −0.5
3 Cl Basel 3 25 2013906492910287360 13.67 3.10.1+0.2Mathematical equation: $\[3.1_{-0.1}^{+0.2}\]$ B3V B2–B8 −1.97 −0.24

4 V* V1019 Cas 2015049435241306368 10.87 3.0 ± 0.1 O2–O3 −7.14 −6.31
4 TYC 4279-1463-1 2014960718396556160 11.21 2.80.2+0.1Mathematical equation: $\[2.8_{-0.2}^{+0.1}\]$ O3.5V((f*))+O9.5V O2–O3 −6.7 −5.8
4 2MASS J23133024+6130103 2014960718396258816 13.36 2.9 ± 0.1 O9.5V+B0.5V O8–B1 −4.59 −3.71
4 IRAS 23158+6116 2014223113595492864 13.59 2.9 ± 0.1 O9–B1 −4.38 −3.53
4 2015063694532638720 13.70 2.7 ± 0.1 O9–B1 −4.07 −3.26
4 2014980372167476608 13.90 2.2 ± 0.1 B0–B2 −3.36 −2.58
4 2015026482935648000 14.10 2.2 ± 0.1 B1–B3 −3.21 −2.4
4 2014977245431361664 14.11 2.2 ± 0.1 B1–B3 −3.21 −2.41
4 2015013563674089088 14.18 2.3 ± 0.1 B1–B3 −3.19 −2.38
4 2014980921923320064 14.21 2.3 ± 0.1 B1–B3 −3.24 −2.44
4 2014979066496885888 14.26 2.3 ± 0.1 B1–B3 −3.12 −2.31
4 2014936666579846400 14.48 2.2 ± 0.1 B1–B3 −2.82 −2.0
4 2015041669939918336 14.49 2.3 ± 0.1 B1–B3 −2.95 −2.13
4 2015061942186026368 14.51 2.70.1+0.2Mathematical equation: $\[2.7_{-0.1}^{+0.2}\]$ B0–B3 −3.29 −2.39
4 2015047923412848256 14.51 2.8 ± 0.1 B0–B3 −3.32 −2.44
4 2015049435241308160 14.60 2.3 ± 0.1 B1–B3 −2.85 −2.02
4 2014936426061682432 14.61 2.4 ± 0.1 B1–B3 −2.93 −2.07
4 2015033457963547520 14.62 2.6 ± 0.1 B1–B3 −3.12 −2.25
4 2014937250695392640 14.65 2.7 ± 0.1 B1–B3 −3.16 −2.29
4 2015016724769986560 14.71 2.7 ± 0.1 B1–B3 −3.03 −2.19
4 2014975149486741120 14.75 2.5 ± 0.1 B1–B3 −2.85 −2.01
4 2015016449892091648 14.78 2.2 ± 0.1 B1–B3 −2.58 −1.73
4 2015050912710071168 14.90 3.20.2+0.1Mathematical equation: $\[3.2_{-0.2}^{+0.1}\]$ B1–B3 −3.23 −2.35
4 2015031362018444160 14.92 2.6 ± 0.1 B1–B3 −2.77 −1.9
4 2014991882679254656 15.10 2.5 ± 0.1 B2–B4 −2.52 −1.65
4 2015014246568988032 15.16 2.50.2+0.1Mathematical equation: $\[2.5_{-0.2}^{+0.1}\]$ B2–B4 −2.48 −1.55
4 2014955117759244032 15.19 3.00.2+0.3Mathematical equation: $\[3.0_{-0.2}^{+0.3}\]$ B1–B3 −2.92 −1.93
4 2015026311136963968 15.22 2.6 ± 0.1 B2–B4 −2.51 −1.63
4 2015017201506620672 15.29 2.2 ± 0.1 B2–B5 −2.1 −1.21
4 2014938040969351168 15.36 2.4 ± 0.1 B2–B5 −2.18 −1.27
4 2015017308885530112 15.43 2.6 ± 0.2 B2–B4 −2.34 −1.41
4 2015046682163239040 15.55 2.6 ± 0.2 B2–B5 −2.24 −1.28
4 2015047889053110656 15.59 3.00.2+0.3Mathematical equation: $\[3.0_{-0.2}^{+0.3}\]$ B2–B4 −2.53 −1.5
4 Gaia DR2 2014997002280223744 2014997002280223744 15.83 2.90.2+0.3Mathematical equation: $\[2.9_{-0.2}^{+0.3}\]$ B2–B5 −2.23 −1.19
4 2014974359212794112 15.85 2.70.2+0.3Mathematical equation: $\[2.7_{-0.2}^{+0.3}\]$ B2–B6 −2.08 −1.02
5 2014534829438189312 12.91 2.8 ± 0.1 B2–B6 −2.46 −0.76

6 WRAM 7 2013214556499125760 12.29 3.0 ± 0.1 B1–B4 −3.21 −1.55

7 TYC 3997-1655-1 2013525576545210240 12.17 2.6 ± 0.1 B1–B4 −3.2 −1.35
7 2013607284004339200 12.41 2.3 ± 0.1 B2–B6 −2.52 −0.89

8 LS III +59 41 2013666180898369792 10.29 2.90.2+0.3Mathematical equation: $\[2.9_{-0.2}^{+0.3}\]$ OB- O5–B1 −5.22 −3.36
8 WRAM 17 2013666249617840640 13.10 2.9 ± 0.1 B2–B7 −2.34 −0.65
8 2013650615936971520 13.22 2.7 ± 0.1 B2–B7 −2.07 −0.42
8 2013669341994190592 13.25 2.7 ± 0.1 B2–B8 −2.04 −0.38
8 2014029638207352832 13.38 3.0 ± 0.1 B2–B7 −2.11 −0.45

9 BD+59 2692 2013886014506640128 9.77 2.70.1+0.2Mathematical equation: $\[2.7_{-0.1}^{+0.2}\]$ B2 O2–B1 −5.56 −3.81
9 Hilt 1208 2013832688190640128 10.68 2.9 ± 0.1 B2 O8–B2 −4.76 −3.08
9 LS III +60 62 2013845435653722880 10.69 2.90.1+0.2Mathematical equation: $\[2.9_{-0.1}^{+0.2}\]$ B5 O7–B2 −4.8 −3.09
9 IRAS 23149+5938 2013819631490109952 11.63 3.20.1+0.2Mathematical equation: $\[3.2_{-0.1}^{+0.2}\]$ O9–B3 −4.09 −2.38
9 LS III +59 70 2010818548859732608 11.71 2.5 ± 0.1 B7 B0–B4 −3.41 −1.73
9 LS III +59 71 2010821327694332160 12.04 2.9 ± 0.1 B3 B0–B4 −3.37 −1.7
9 TYC 4010-249-1 2013821035933074304 12.08 2.2 ± 0.1 A1 B1–B5 −2.77 −1.13
9 2013883089620620160 12.23 2.40.2+0.1Mathematical equation: $\[2.4_{-0.2}^{+0.1}\]$ B1–B6 −2.81 −1.03
9 2013824063896660096 12.53 2.8 ± 0.1 B1–B5 −2.8 −1.14
9 2013883639376430976 12.59 2.3 ± 0.1 B2–B7 −2.32 −0.69
9 2013837498553956352 12.72 2.10.4+0.6Mathematical equation: $\[2.1_{-0.4}^{+0.6}\]$ B2–B9 −2.49 0.1
9 2010819751450862336 12.93 3.40.5+0.9Mathematical equation: $\[3.4_{-0.5}^{+0.9}\]$ B0–B6 −3.31 −0.89
9 2013817913503473280 13.10 2.8 ± 0.1 B2–B7 −2.23 −0.59
9 2013828668101560832 13.35 2.7 ± 0.2 B2–B8 −2.04 −0.22
9 2013821761793940480 13.54 3.3 ± 0.1 B2–B7 −2.17 −0.5
9 2010813218797067136 13.54 2.90.5+0.6Mathematical equation: $\[2.9_{-0.5}^{+0.6}\]$ B2–B9 −2.23 0.11
9 2013823273622665856 13.63 2.80.3+0.5Mathematical equation: $\[2.8_{-0.3}^{+0.5}\]$ B2–B9 −2.01 0.16
9 2013818394539518720 14.40 3.80.6+0.9Mathematical equation: $\[3.8_{-0.6}^{+0.9}\]$ B2-A0 −2.2 0.38

10 BD+59 2681 2013737305553964416 10.17 3.50.6+0.8Mathematical equation: $\[3.5_{-0.6}^{+0.8}\]$ B O2–B1 −6.07 −3.67
10 V* V807 Cas 2013726276077656960 10.73 2.7 ± 0.1 B3 O8–B2 −4.52 −2.9
10 LS III +59 58 2013740535369325440 10.75 3.2 ± 0.1 B0 O7–B2 −4.88 −3.21
10 LS III +59 54 2013739813816938368 11.29 3.30.2+0.1Mathematical equation: $\[3.3_{-0.2}^{+0.1}\]$ B2 O9–B2 −4.4 −2.68
10 2013785271749932288 11.96 2.8 ± 0.1 B0–B3 −3.42 −1.76
10 2013780804984289152 11.99 3.3 ± 0.1 B0–B3 −3.71 −2.05
10 EM* GGR 136 2013738675641124736 12.17 2.9 ± 0.1 B1–B4 −3.23 −1.59
10 TYC 4010-333-1 2013738748665059712 12.34 2.7 ± 0.2 B1–B5 −3.04 −1.13
10 TYC 4279-562-1 2013788875218913152 12.40 2.7 ± 0.1 B1–B5 −2.9 −1.26
10 TYC 4010-1003-1 2013740466649851392 12.41 3.0 ± 0.1 B1–B4 −3.09 −1.39
10 2013787505133249280 12.67 2.6 ± 0.1 B1–B6 −2.58 −0.89
10 2013739813814802304 12.67 3.2 ± 0.1 B1–B4 −2.96 −1.3
10 Gaia DR3 2013737855309770752 2013737855309770752 12.75 2.9 ± 0.1 B1–B6 −2.64 −1.01
10 2013830592246600320 12.83 2.6 ± 0.1 B2–B6 −2.39 −0.75
10 2013740363570655488 12.89 3.0 ± 0.1 B1–B6 −2.63 −0.91
10 TYC 4279-1409-1 2013741772319868544 13.00 3.20.1+0.2Mathematical equation: $\[3.2_{-0.1}^{+0.2}\]$ B1–B6 −2.7 −0.98
10 2013734866012561920 13.19 3.2 ± 0.1 B2–B6 −2.48 −0.77
10 2013719816447246592 13.19 2.9 ± 0.1 B2–B7 −2.19 −0.54
10 2013781560898523136 13.20 3.2 ± 0.1 B2–B6 −2.41 −0.76
10 2013714662486174336 13.22 2.7 ± 0.1 B2–B8 −2.2 −0.37
10 2013735720703625728 13.37 3.3 ± 0.1 B2–B7 −2.32 −0.65
10 2013787092816414336 13.37 2.9 ± 0.1 B2–B8 −2.06 −0.39
10 2013741944118582144 13.61 3.3 ± 0.1 B2–B8 −2.09 −0.41

11 2014171956246055168 12.81 2.8 ± 0.1 B1–B6 −2.54 −0.88

Notes. Table lists massive star candidates identified in each of 11 analysed areas. The successive columns give the area identification, SIMBAD and Gaia DR3 source names, Gaia G band magnitude, geometric distances determined by Bailer-Jones et al. (2021), previously reported ST, the spectral type range derived in this work, and the corresponding absolute magnitudes in the Gaia G band.

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