2019MNRAS.484.1838B

Query : 2019MNRAS.484.1838B

2019MNRAS.484.1838B - Mon. Not. R. Astron. Soc., 484, 1838-1842 (2019/April-1)

Disentangling the spatial substructure of Cygnus OB2 from Gaia DR2.

BERLANAS S.R., WRIGHT N.J., HERRERO A., DREW J.E. and LENNON D.J.

Abstract (from CDS):

For the first time, we have explored the spatial substructure of the Cygnus OB2 association using parallaxes from the recent second Gaia data release. We find significant line-of-sight substructure within the association, which we quantify using a parametrized model that reproduces the observed parallax distribution. This inference approach is necessary due to the non-linearity of the parallax distance transformation and the asymmetry of the resulting probability distribution. Using a Markov Chain Monte Carlo ensemble sampler and an unbinned maximum likelihood test, we identify two different stellar groups superposed on the association. We find the main Cygnus OB2 group at ∼1760 pc, further away than recent estimates have envisaged, and a foreground group at ∼1350 pc. We also calculate individual membership probabilities and identify outliers as possible non-members of the association.

Abstract Copyright: © 2019 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): astrometry - parallaxes - stars: distances - stars: early-type - stars: massive - open clusters and associations: individual: Cygnus OB2

VizieR on-line data: <Available at CDS (J/MNRAS/484/1838): tablea1.dat tablea2.dat>

Simbad objects: 230

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Number of rows : 230
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 NAME Orion Nebula Cluster OpC 05 35.0 -05 29           ~ 2514 0
2 HD 172694 Be* 18 42 16.5708437088 -15 51 20.829852396 7.61 8.32 8.12 9.04   B1:Vne 61 0
3 HD 173251 * 18 44 52.6215061152 -14 21 11.223488880 9.48 9.78 9.15 9.54   B1/2Ib 30 0
4 TYC 3156-1422-1 s*b 20 25 33.1988631720 +40 48 44.432377200   13.07 11.59     B0Iab 4 0
5 ATO J306.8374+41.3572 EB* 20 27 20.9962899456 +41 21 26.143711452   14.65 12.91 12.31   B0.5V 11 0
6 TYC 3160-279-1 * 20 27 24.2822979192 +41 15 45.794268000   12.64 11.76     O9.5V 8 1
7 UCAC4 657-087297 * 20 27 37.8740501280 +41 15 46.799041680   15.56 13.37 12.67   B0II 5 0
8 TYC 3156-424-1 * 20 27 39.8221722312 +40 40 38.349739560   11.99 11.09     B1V 7 0
9 BD+40 4179 * 20 27 43.6151708592 +40 35 43.510878960 9.79 10.21 9.71     O8Vz 39 0
10 UCAC4 652-090808 * 20 27 49.2528511152 +40 17 00.426791616   13.87 12.18 11.65   B1III 4 0
11 UCAC4 659-087265 * 20 27 52.9281893400 +41 44 06.718473924   13.99 12.11 11.57   O9.5II 6 0
12 TYC 3156-1106-1 * 20 28 15.3905907360 +40 44 04.579722636   12.16 11.24 10.80   B1III 11 0
13 BD+40 4185 ** 20 28 15.4710987120 +40 38 19.815512676 10.5 10.663 9.741 9.569   O9.7IV 25 0
14 ATO J307.1155+41.0671 LP* 20 28 27.7247334216 +41 04 01.806711420           B0.5V 9 0
15 TYC 3156-998-1 s*b 20 28 30.3866937768 +41 05 29.092868196   13.36 12.16     OC9.7Ia 5 0
16 HD 195213 * 20 28 32.0275383864 +40 49 02.898008652 9.32 9.55 8.82     O7Ib(f) 44 0
17 2MASS J20284656+4107068 * 20 28 46.5656453664 +41 07 06.864085920           B2II 5 0
18 BD+40 4193 * 20 29 13.5548333424 +40 41 03.383452680   10.42 10.19     B1V 12 0
19 UCAC4 655-091925 * 20 29 16.1728788600 +40 57 37.190855016       12.69   O9.7III 9 0
20 UCAC4 655-091941 * 20 29 24.4930997808 +40 52 59.812534974   14.54 12.74 12.20   B0.2IV 7 0
21 IRAS 20277+4010 EB* 20 29 34.7243772480 +40 20 38.078277072         10.980 B1V 10 0
22 2MASS J20293480+4120089 * 20 29 34.7998649520 +41 20 08.948113800           O9.5V 7 0
23 TYC 3156-1881-1 * 20 29 35.6305449576 +40 24 31.445899056   12.49 11.64     O8IIIz 7 1
24 EM* AS 420 Be? 20 29 40.6017081216 +41 09 58.545269208   13.960 12.204 11.529   B1[e] 9 0
25 [CPR2002] A45 SB* 20 29 46.6721589624 +41 05 08.338345224           B0.5V+B1V:-B2V: 21 0
26 [CPR2002] A42 * 20 29 57.0114151080 +41 09 53.837474112   13.04 12.21     B0V 16 0
27 NAME Cyg X Cld 20 30 04.7973633 +40 51 36.002197           ~ 962 1
28 [CPR2002] A18 * 20 30 07.8777080832 +41 23 50.423946144           O8V 12 0
29 UCAC4 657-087591 * 20 30 10.9717809744 +41 20 08.822879916   16.68 14.45 13.61   B0:II: 4 0
30 2MASS J20301838+4053466 SB* 20 30 18.3939214392 +40 53 46.559630544           O9V 8 0
31 V* V1827 Cyg s*b 20 30 27.3018237840 +41 13 25.130220744     13.053     O6Iaf+O9Ia 42 0
32 2MASS J20303296+4044024 * 20 30 32.9668362696 +40 44 02.407618068           B1V 6 0
33 2MASS J20303832+4010537 * 20 30 38.3296677720 +40 10 53.841456192           B1V 9 0
34 [CPR2002] A23 s*b 20 30 39.6999117024 +41 08 48.792195024   12.41 11.296     B0.7Ib 19 0
35 GSC 03161-01264 * 20 30 39.8050574280 +41 36 50.632151976 15.11 14.57 12.93     O6.5V 24 0
36 BD+40 4208 * 20 30 49.9726448280 +40 44 18.511633716   10.68 10.08     B1V 19 0
37 RLP 1520 SB* 20 30 50.7333660192 +41 35 06.639049932 15.23 15.04 13.74     B1.5V+B+? 20 0
38 GSC 03161-01224 * 20 30 51.1144819416 +41 20 21.764885280 17.28 16.66 14.48     B0V 20 0
39 [CPR2002] A35 * 20 30 55.5176531832 +40 54 54.022233096           B0Ib 10 0
40 [CPR2002] A26 LP* 20 30 57.7270705416 +41 09 57.526899120           O9V 15 0
41 GSC 03161-00706 * 20 30 59.383 +41 35 59.94   15 13.73     B2V 12 0
42 TYC 3157-776-1 * 20 31 00.2042940672 +40 49 49.692155556   12.10 11.22     O7V((f)) 17 0
43 BD+40 4210 * 20 31 04.6594274880 +40 30 56.924801928   12.13 10.45     B2Ia 7 0
44 2MASS J20310700+4035537 * 20 31 07.0043314296 +40 35 53.714850900           B1III 5 0
45 TYC 3161-732-1 * 20 31 08.3769788976 +42 02 42.212727960   13.12 12.29     O9.7II 17 0
46 Schulte 1 SB* 20 31 10.544472 +41 31 53.52024 12.82 12.69 11.09 10.57   O8V+B 70 0
47 RLP 1592 SB* 20 31 18.3295427976 +41 21 21.703264884 15.88 15.09 12.99     O9III+ 32 0
48 Schulte 2 V* 20 31 22.0268518920 +41 31 28.365740076 12.01 11.82 10.64     B1Ib: 68 0
49 [CPR2002] A30 * 20 31 22.1000229360 +41 12 02.886968160   15.23 13.32 12.66   B0.2III 15 0
50 2MASS J20313055+4137159 * 20 31 30.5455693344 +41 37 15.901609728   15.78 14.56     B2V 13 0
51 RLP 582 SB* 20 31 33.3769187472 +41 22 49.014033456 16.52 15.81 13.81     B1V+B2V: 23 0
52 2MASS J20313364+4136046 * 20 31 33.6418510320 +41 36 04.668424776   15.89 14.60     B3V 12 0
53 2MASS J20313415+4131082 * 20 31 34.1481969360 +41 31 08.186201328   16.14 14.88     B3IV 10 0
54 [CPR2002] A15 * 20 31 36.9100232904 +40 59 09.036657888           O7Ib(f) 15 0
55 TYC 3161-632-1 * 20 31 36.9214365720 +42 01 21.765094104   12.14 11.20     B0.7Ib 11 0
56 BD+40 4212 SB* 20 31 37.5053189952 +41 13 21.001757520 12.46 11.5 10.214     O6IV:+O9III 83 1
57 2MASS J20314163+4128209 * 20 31 41.6293813680 +41 28 20.916711732   15.74 14.40     B3V 12 0
58 UCAC4 656-090035 * 20 31 43.4091139680 +41 00 02.065181148   16.84 14.54 13.73   B1V 6 0
59 RLP 593 * 20 31 45.3998073432 +41 18 26.728678620 14.91 14.25 12.26     O8V 32 0
60 [CPR2002] A44 * 20 31 46.0536672696 +40 43 24.646047960           B0.5IV 14 0
61 ZTF J203148.84+403800.0 LP* 20 31 48.8484352416 +40 38 00.063295692   14.92 13.10 12.07 11.06 B1II 20 0
62 Schulte 20 SB* 20 31 49.6575031512 +41 28 26.510600388 12.67 12.63 11.52     O9III+B 50 0
63 2MASS J20315322+4129246 * 20 31 53.2152681336 +41 29 24.646545924   17.33 16.03     ~ 3 0
64 ATO J307.9763+40.1685 RS* 20 31 54.3330553344 +40 10 06.704804496   16.62 14.31 13.63   B1III 7 0
65 2MASS J20315540+4135276 * 20 31 55.4022789624 +41 35 27.530995560   16.32 15.07     B3V 8 0
66 [MT91] 170 * 20 31 56.2299160317 +41 35 12.058029704   16.26 15.21     B5:V 7 0
67 GSC 03161-01016 * 20 31 56.3690544360 +41 33 04.995050292 15.38 15.11 13.90     B1.5V 13 0
68 RLP 210 SB* 20 31 56.9461566120 +41 31 47.764616124 13.99 13.76 12.55     B2III+G-B 25 0
69 RLP 961 EB* 20 31 58.9812323160 +41 07 31.379986560   16.34 14.23 13.50   B1V 10 0
70 2MASS J20315961+4114504 * 20 31 59.6101878360 +41 14 50.455810716           O7.5Vz 16 0
71 GSC 03161-00887 * 20 31 59.9614054272 +41 37 14.085624216   15.46 14.00     B3V 10 0
72 MR 110 WR* 20 32 03.0201049320 +41 15 20.499732216   15.99 13.97     WC5 85 0
73 2MASS J20320311+4132302 * 20 32 03.1061515488 +41 32 30.239553552   15.34 14.14     B2Ve 10 0
74 RLP 545 LP* 20 32 03.7666533504 +41 25 10.443609084 15.15 14.76 13.24     B0.5V 25 0
75 GSC 03161-00885 * 20 32 04.8045585936 +41 28 44.084705556   14.85 13.81     B3IV 12 0
76 EM* AS 422 WR* 20 32 06.2786571432 +40 48 29.527101576   13.46 11.83     WN7o/CE+O7V(f) 107 0
77 2MASS J20320689+4117570 * 20 32 06.8731854672 +41 17 56.967519984   15.92 13.94     B0:II 13 0
78 RLP 615 SB* 20 32 07.9695369168 +41 21 59.849287740   15.81 14.46     B2V+A-B 14 0
79 [MT91] 215 * 20 32 13.5181557696 +41 27 29.986649172   13.93 12.97     B1V 11 0
80 RLP 527 * 20 32 13.8078585168 +41 27 41.414129244   14.2 13.02     B1.5V 13 0
81 BD+40 4219 * 20 32 13.8219154968 +41 27 12.006516060 11.50 11.40 10.22     O7III((f)) 115 0
82 2MASS J20321460+4122330 * 20 32 14.5997206848 +41 22 33.096770112 16.36 15.86 14.34     B1V 17 0
83 [MT91] 221 * 20 32 14.6955487680 +41 27 39.686180652   14.92 13.62     B2V 14 0
84 2MASS J20321504+4119303 * 20 32 15.0387020568 +41 19 30.424269828   16.29 14.9     B3V 13 0
85 2MASS J20321568+4046170 * 20 32 15.6794885016 +40 46 16.994450028           B0.2IV 7 0
86 Schulte 14 Em* 20 32 16.5622071096 +41 25 35.670679176 12.84 12.27 11.47     O9V 53 0
87 RLP 619 SB* 20 32 19.6472111832 +41 20 38.899179780 14.79 14.53 13.25     B1.5V+B 18 0
88 HD 195873 ** 20 32 20.785200 +41 52 00.89904   9.18 8.80 9.05   B9V 13 0
89 2MASS J20322135+4118354 * 20 32 21.3466446144 +41 18 35.477965044 17.31 16.71 14.91     B1V 16 0
90 GSC 03161-01342 * 20 32 21.7501948560 +41 34 25.027112892   15.47 14.33     B4V 12 0
91 RLP 530 SB* 20 32 22.1197789656 +41 27 42.085617228   14.58 13.88     B1.5V+B 14 0
92 BD+40 4220 s*b 20 32 22.4238071594 +41 18 18.942475904 11.32 10.61 9.185     O7Iafep 414 0
93 GSC 03161-01109 * 20 32 25.4843793648 +41 24 52.124339520 14.99 14.67 13.36     B2V 18 0
94 GSC 03161-01003 * 20 32 26.0775184320 +41 29 39.333966612 14.1 13.94 12.88     B1V 19 0
95 2MASS J20322615+4057194 * 20 32 26.1403194264 +40 57 19.434975372           ~ 2 0
96 RLP 631 SB* 20 32 26.5055734776 +41 19 13.836357012 16.11 15.7 14.15     B2III+B1V 23 0
97 GSC 03161-01143 * 20 32 27.2345395008 +41 21 56.631173220   16.2 14.82     B2III 14 0
98 [CPR2002] A39 * 20 32 27.3402185280 +40 55 18.247769256           B2V 19 0
99 Schulte 15 SB* 20 32 27.6544131144 +41 26 22.073616744 12.39 12.30 11.10     O8V+B 55 0
100 Schulte 21 * 20 32 27.7375852104 +41 28 52.248099612 12.39 12.01 11.30 11.05   B0Ib 50 0
101 [CPR2002] A32 SB* 20 32 30.3115469568 +40 34 33.237363720           O9.5IV 17 0
102 GSC 03157-01112 * 20 32 30.8858373048 +41 07 03.622397484   13.80 12.66 12.33   B2III 11 0
103 RLP 497 SB* 20 32 31.4083592352 +41 30 51.602419368   15.81 14.38     B2.5V 13 0
104 RLP 887 SB* 20 32 31.5336715464 +41 14 08.190216276   15.44 13.00 12.15   O7Ib(f) 43 0
105 2MASS J20323233+4122578 * 20 32 32.3197776144 +41 22 57.794705436   16.17 14.68     B4V 12 0
106 ALS 15186 * 20 32 32.5377656160 +41 26 46.815246960 16.82 16.48 14.91     B5:V 10 0
107 ALS 15143 * 20 32 32.6575447728 +41 27 04.595697396 14.71 14.57 13.47     B2V 15 0
108 [CPR2002] A38 * 20 32 34.8659821944 +40 56 17.342185776       12.65   O8V 18 0
109 [CPR2002] A33 * 20 32 34.9789086552 +40 52 38.950175100           B0.2IV 9 0
110 RLP 492 SB* 20 32 37.0177286328 +41 23 05.186805072 15.01 14.59 13.08     B2V+B-F 25 0
111 RLP 494 SB* 20 32 37.7595818832 +41 26 15.394216992 15.18 14.92 13.71     B1.5V+G-B 21 0
112 2MASS J20323835+4128567 * 20 32 38.3435626200 +41 28 56.719109964   15.68 14.43     B3V 16 0
113 [CPR2002] A25 * 20 32 38.4437517288 +40 40 44.481528480           O8III 14 0
114 Schulte 16 * 20 32 38.5694704320 +41 25 13.776724056 12.05 11.88 11.12     O7.5IV(n) 55 0
115 RLP 984 * 20 32 38.8169038800 +40 58 46.726952268   16.56 14.35 13.31   B0Ib 8 0
116 2MASS J20323886+4125208 * 20 32 38.8624280376 +41 25 20.817913620 14.29 14.26 13.05     B1V 18 0
117 BD+40 4223 * 20 32 39.0564906216 +41 00 07.769840832 13.02 12.0 10.5     B0Ia 22 0
118 KMJ 1718 * 20 32 39.5067307512 +40 52 47.457723828   15.2   13.1   B0.2IV 14 0
119 UCAC4 655-092284 * 20 32 39.6781236648 +40 50 41.227263600   15.25 13.39 12.75   B0II 5 0
120 Schulte 12 s*b 20 32 40.9572199728 +41 14 29.279036940 16.1 14.45 11.702     B3-4Ia+ 453 0
121 RLP 644 SB* 20 32 42.8884391784 +41 20 16.477275012   15.26 13.87     B2V+B3V 21 0
122 BD+40 4221 * 20 32 45.4494231552 +41 25 37.543209348 12.06 11.93 10.68     O8.5V(n) 64 0
123 2MASS J20324645+4124223 * 20 32 46.4541809184 +41 24 22.390164468   16.24 14.91     B2.5V 13 0
124 2MASS J20324675+4126160 * 20 32 46.7554583832 +41 26 16.005248736   15.67 14.30     B1.5III 13 0
125 Schulte 33 * 20 32 47.1847726104 +41 17 50.057756592   17.67 15.81     ~ 8 0
126 Schulte 32 * 20 32 48.6269320440 +41 14 29.870941128   17.92 15.61     ~ 9 0
127 [MT91] 336 SB* 20 32 49.6802921976 +41 25 36.457180680   15.3 14.13     B2V+B-M 15 0
128 Schulte 17 SB* 20 32 50.0160775512 +41 23 44.684507976 13.15 12.43 11.33     O8V+O-G 49 0
129 2MASS J20325075+4115022 * 20 32 50.7471146328 +41 15 02.183388768 17.2 16.42 14.44     B1V 19 0
130 Schulte 37 * 20 32 54.4064649768 +41 15 21.849647796 17.76 16.97 14.81     B3V 18 0
131 2MASS J20325667+4123408 * 20 32 56.6636273064 +41 23 40.890896304 15.41 15.09 13.81     B1V 19 0
132 RLP 994 SB* 20 32 58.9203050976 +41 04 30.012303288 18.01 17.14 14.958   12.580 B0V+B2:V 30 0
133 Schulte 43 * 20 32 59.0372758392 +41 17 59.002383588   17.46 15.93     B2.5V 10 0
134 GSC 03161-01218 * 20 32 59.1773346576 +41 24 25.491471588 13.47 13.26 11.91     O8V 36 0
135 Schulte 41 SB* 20 32 59.6317342392 +41 15 14.679727632 16.54 15.59 13.49     O9.7III(n) 37 0
136 Schulte 40 * 20 32 59.7550661520 +41 14 19.695934464   17.13 15.15     B2:II:p 11 0
137 RLP 666 SB* 20 33 02.9131259304 +41 17 43.161301572 15.67 15.06 12.94 12.18   O8V+G-O 40 0
138 [CPR2002] A20 * 20 33 02.9279638392 +40 47 25.319304852           O8II((f)) 21 0
139 Schulte 54 * 20 33 04.4144078688 +41 17 08.958424344 16.58 15.89 14.14     B1V 21 0
140 GSC 03161-01357 * 20 33 05.1877575840 +41 17 51.239205816 16.28 15.77 14.15     B1V 21 0
141 RLP 107 SB* 20 33 05.2620969456 +41 43 36.748888104 14.9 14.43 12.94     B1V+B 28 0
142 2MASS J20330661+4121131 * 20 33 06.6113074032 +41 21 13.128687648 16.58 15.97 14.21     B0.5V 20 0
143 Schulte 22 SB* 20 33 08.799 +41 13 18.21 14.33 13.59 11.55     O3If*+O6V((f)) 76 0
144 Schulte 50B * 20 33 09.4493565240 +41 12 58.395804048           O9.7V: 4 0
145 Schulte 50A * 20 33 09.6047787600 +41 13 00.608957004           ~ 2 0
146 Schulte 51 * 20 33 10.1211775920 +41 13 10.168704480 16.29 15.56 13.62     O9.5Vn 27 1
147 2MASS J20331029+4123446 * 20 33 10.2850243200 +41 23 44.600309880 16.67 16.36 14.97     B4II-III 16 0
148 ALS 15161 * 20 33 10.34 +41 13 06.4 16.63 16 14.05     BOV 17 0
149 2MASS J20331046+4120574 * 20 33 10.4640116712 +41 20 57.371779536   15.83 14.06     B1V 21 0
150 RLP 678 EB* 20 33 10.5041613984 +41 22 22.405661292 14.97 14.54 12.958     B0V+(B3V+B6V) 44 0
151 Schulte 9 s*b 20 33 10.7362926720 +41 15 08.222370372 13.38 12.77 10.96     O5I+O4III 243 0
152 2MASS J20331106+4110321 * 20 33 11.0607015672 +41 10 32.027017008 17.82 16.97 14.78     B0.7:V: 22 0
153 [CPR2002] A22 * 20 33 11.3013973344 +40 42 33.755626620           O9.7III 10 0
154 2MASS J20331137+4117585 * 20 33 11.3739563424 +41 17 58.553509524 16.36 15.9 14.38     B2III: 20 0
155 2MASS J20331182+4124054 * 20 33 11.8143520176 +41 24 05.411799324   15.6 14.12     B5V 11 0
156 Ass Cyg OB 2 As* 20 33.2 +41 19           ~ 1023 0
157 RLP 853 SB* 20 33 13.2612575376 +41 13 28.656230412 16.63 15.76 13.61     O6.5V((f)) 39 0
158 2MASS J20331336+4126397 * 20 33 13.3579462512 +41 26 39.674315220   15.59 14.45     B5:V 16 0
159 GSC 03157-00872 * 20 33 13.6906302984 +41 13 05.770090668 15.27 14.73 12.92     O8V 36 0
160 Schulte 7 * 20 33 14.1095938872 +41 20 21.904113804 12.24 12.00 10.55     O3If* 153 0
161 ALS 15175 * 20 33 14.3372675616 +41 19 33.126329208 17.15 16.46 14.67     B5: 13 0
162 BD+40 4227B * 20 33 14.7561575856 +41 18 41.750437968 11.99 11.64 10.70     O6II(f) 83 0
163 BD+40 4227A SB* 20 33 15.0781182864 +41 18 50.479292556 10.42 10.27 8.98 8.03 6.83 O6Ib(fc)+O4.5:III:(fc) 253 0
164 GSC 03161-01087 * 20 33 15.3141210600 +41 29 56.765628888 15.49 15.02 13.43     B1V 20 0
165 2MASS J20331548+4127331 * 20 33 15.4898271312 +41 27 33.088374504 15.4 15.06 13.65     B1III 16 0
166 Schulte 23 * 20 33 15.7083033168 +41 20 17.174193540 14.21 14.07 12.61     O9V 41 0
167 Schulte 8D SB* 20 33 16.3364502072 +41 19 01.883101584 13.66 13.47 12.02     O8.5V+O9V+A2V-O 45 0
168 2MASS J20331740+4112387 * 20 33 17.4051695952 +41 12 38.725251624 17.11 16.34 14.43     B0.5V(n) 23 0
169 Schulte 24 * 20 33 17.4825784080 +41 17 09.350977524 13.85 13.47 11.88     O8V(n) 51 0
170 Schulte 8C * 20 33 17.9820761856 +41 18 31.194812988 12.2 11.43 10.19     O4.5III(fc) 89 0
171 RLP 680 SB* 20 33 18.0338622552 +41 21 36.661612428 13.9 12.72 11.82     O8V+B-O 39 0
172 Schulte 64 Be* 20 33 18.5309527200 +41 15 35.149489128 18.17 17.24 14.88     B1Ve-B3Ve 30 0
173 2MASS J20331859+4124493 * 20 33 18.5863677984 +41 24 49.347699948 16.75 16.29 14.76     B0.2V 17 0
174 [CPR2002] B15 LP* 20 33 18.6998367888 +40 59 37.862830464   15.69 13.54     B0.5IIIe 14 0
175 ALS 15184 * 20 33 19.1423803776 +41 17 44.986739532 17.04 16.53 14.85     B1V 16 0
176 2MASS J20331927+4124448 * 20 33 19.2666413880 +41 24 44.823537180 17.05 16.6 14.99     B5IV 15 0
177 ALS 15177 * 20 33 20.9918123376 +41 35 51.817116372 17.08 16.51 14.72     B0V 15 0
178 GSC 03161-01385 * 20 33 21.0165110136 +41 17 40.120725840 14.57 14.24 12.70     O9V 33 0
179 2MASS J20332245+4122169 * 20 33 22.4490987024 +41 22 16.932211788 16.1 15.68 14.26     B2V 21 0
180 Schulte 66 * 20 33 23.2325429760 +41 13 42.026795400 17.68 16.69 14.66     B1V 17 0
181 2MASS J20332334+4120171 * 20 33 23.3393716008 +41 20 17.192174676 15.67 15.24 13.74     B1V 22 0
182 RLP 841 ** 20 33 23.472072 +41 09 12.90312 14.97 14.23 11.83 10.98   O6IV((f)) 43 0
183 V* V2190 Cyg Em* 20 33 24.7399778520 +41 22 04.473811524     14.06     B2Ve: 20 0
184 Schulte 25 * 20 33 25.564 +41 33 27.00 13.52 13.15 11.58     O8Vz 34 0
185 Schulte 67 * 20 33 25.6322785608 +41 15 24.817668876   17.22 15.29     B2IV:nn 8 0
186 GSC 03157-00327 * 20 33 26.7558420864 +41 10 59.437772256 15.48 14.87 13.00     O8Vz 38 0
187 [D75b] Em* 20+118 Em* 20 33 27.1248707400 +41 35 58.448082300 17.21 16.9 14.61     Be 14 0
188 Schulte 74 SB* 20 33 30.3173970432 +41 35 57.893152056 15.04 14.41 12.51     O8V+B2-O 32 0
189 Schulte 18 * 20 33 30.7901427336 +41 15 22.693080852 13.38 12.54 10.860     B1I 51 0
190 RLP 724 SB* 20 33 31.6396483032 +41 21 45.972551592 15.34 15.03 13.73     B2V+B-O 22 0
191 2MASS J20333334+4108364 * 20 33 33.3500051064 +41 08 36.400701228 17.78 16.92 14.76     B3V 14 0
192 GSC 03161-01254 * 20 33 33.939 +41 19 38.25 15.95 15.49 13.87     B3I 22 0
193 EM* AS 427 Em* 20 33 34.3352362680 +41 18 11.427242760 15.61 15.18 13.41     B2Ve 31 0
194 ALS 15176 * 20 33 34.5590633544 +41 21 37.274390712 16.39 16.1 14.71     B7:V 14 0
195 [CPR2002] A12 * 20 33 38.2141818168 +40 41 06.375488928           B1Ib 8 0
196 2MASS J20333821+4053411 * 20 33 38.2173755304 +40 53 41.187436440           B0Ib 8 0
197 Schulte 19 s*b 20 33 39.1040288712 +41 19 25.992295824 12.91 12.77 10.944 10.38   B0Iab+B-O 73 0
198 EM* AS 428 SB* 20 33 39.7935831360 +41 22 52.188298860 13.17 12.21 11.38     B1V+B1: 38 0
199 GSC 03161-01086 * 20 33 40.8633896328 +41 30 18.953823168 14.61 14.32 12.77     O7V 28 0
200 GSC 03157-01100 * 20 33 42.3404625144 +41 11 45.547805292 16.22 15.71 13.89     O9.7:V: 23 0
201 2MASS J20334254+4114566 * 20 33 42.5364294456 +41 14 56.650040124 17.41 16.84 14.93     B1V: 19 0
202 BD+41 3804 s*b 20 33 46.1145474912 +41 33 00.991426968 11.82 11.41 9.88     O9.7Iab 104 0
203 2MASS J20334680+4108019 * 20 33 46.8086403840 +41 08 01.822162056 16.06 15.53 13.81     B1III 20 0
204 2MASS J20334758+4109064 * 20 33 47.5864735272 +41 09 06.418488996   16.14 14.21     B2V 16 0
205 Schulte 26 * 20 33 47.8316875224 +41 20 41.377739100 13.77 13.33 11.78     B1III 34 0
206 2MASS J20334835+4113138 * 20 33 48.3548742888 +41 13 13.759164012 17.09 16.52 14.65     B2III 17 0
207 2MASS J20334879+4137400 * 20 33 48.7935041088 +41 37 40.082862576 16.7 16.47 14.94     B2Ve: 17 0
208 Schulte 71 SB* 20 33 48.8417931672 +41 19 40.566513900 15.12 14.73 13.34     B1V+B1.5V 23 0
209 IRAS 20321+4009 * 20 33 58.4177618688 +40 19 41.147323788           O9.5Vn 5 0
210 GSC 03157-00193 * 20 33 59.2509364128 +41 05 38.094030708 15.76 15.3 13.61     B0V 24 0
211 Schulte 27 SB* 20 33 59.5281120792 +41 17 35.477936340 14.44 13.97 12.203   10.250 O9.7V(n)+O9.7V(n) 58 0
212 GSC 03157-01008 * 20 34 04.3480515480 +41 08 07.924191792 16.06 15.46 13.66     B1III 20 0
213 GSC 03157-00727 * 20 34 04.8605977224 +41 05 12.915621852 15.88 15.34 13.50     O8.5V 21 0
214 RLP 814 SB* 20 34 06.0155486352 +41 08 09.132034596 16.37 15.64 13.415     B0-B1+B1-B2 35 0
215 BD+41 3807 SB* 20 34 08.5147948176 +41 36 59.408503092 11.74 11.52 10.03     O5.5Ifc 137 0
216 Schulte 29 SB* 20 34 13.5108732672 +41 35 02.859602280 13.59 13.41 11.91     O7V+B-O 47 0
217 [CPR2002] A28 * 20 34 16.0461896016 +41 02 19.568894712   16.05 13.89 13.10   O9.5V 15 0
218 Schulte 73 SB* 20 34 21.9323730840 +41 17 01.655524788   14.13 12.40     O8Vz+O8Vz 34 0
219 2MASS J20342462+4126250 * 20 34 24.6201342744 +41 26 25.138048272 16.74 16.32 14.65     B1V 19 0
220 RLP 335 SB* 20 34 29.5987121592 +41 31 45.516383076 14.72 13.30 11.64     O7V+O9V 47 0
221 Schulte 30 Em* 20 34 43.5995109360 +41 29 04.799547924 14.13 13.83 12.240     B1.5III 36 0
222 [CPR2002] A24 * 20 34 44.1106226280 +40 51 58.699418040           O6.5III(f) 14 0
223 [CPR2002] A27 * 20 34 44.7167065392 +40 51 46.731492072   13.61 11.08     B0Ia 17 0
224 [CPR2002] A29 s*b 20 34 56.0574880584 +40 38 17.940894612           O9.7Iab 15 0
225 HD 196305 * 20 34 56.5166484408 +41 43 04.073250504   7.49 7.59     B9 19 0
226 RLP 1252 * 20 34 57.8460419376 +41 43 54.274437444   16 13.2     O8III(f)e 11 0
227 V* V2550 Cyg SB* 20 34 58.7802708120 +41 36 17.359091316   13.591 11.470 10.671   B0Ib+B0III 31 0
228 ZTF J203547.02+405301.2 EB* 20 35 47.0251697136 +40 53 01.177770300         11.067 B2V 11 0
229 MR 112 WR* 20 35 47.0859278605 +41 22 44.703520146     12.64 12.16   WC6+O8I-IIf 162 1
230 [CPR2002] A37 * 20 36 04.4996355240 +40 56 13.040299752           O5V((f)) 28 0

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