New members of the massive stellar population in Cygnus

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Table 1

Known, spectroscopically classified O and B stars in the region.

Object	α	δ	B	J	H	K _S	Sp. type	Source	Notes
	(2000)		(USNO B)	(2MASS)

HD 228821	20 18 04.930	+40 06 06.80	9.254	8.874	8.951	8.928	B8	1	(a)
HD 193426	20 18 39.749	+40 13 36.89	8.809	5.014	4.650	4.357	B9Ia	2
HD 228882	20 18 57.784	+40 42 18.52	10.202	6.522	6.181	5.966	B05Ia	2
HD 228911	20 19 21.712	+40 53 16.46	8.726	7.801	7.773	7.771	B2	1	(b)
HD 228919	20 19 27.908	+40 27 42.09	10.174	8.339	8.216	8.143	B1IV	2
HD 228928	20 19 32.709	+40 39 13.75	10.406	7.596	7.295	7.148	B2Ib:nn	2
HD 228929	20 19 36.542	+39 54 41.80	10.689	6.866	6.494	6.284	B0.5Ib	2
HD 228941	20 19 40.169	+40 53 19.19	9.182	8.146	8.084	8.082	B3	1
HD 193945	20 21 25.823	+41 11 39.56	9.053	6.995	6.856	6.773	B0Vnn	2
HD 194092	20 22 05.443	+40 59 08.17	8.354	7.972	8.013	8.022	B0.5III	2
HD 194194	20 22 44.760	+40 42 52.63	8.160	8.081	8.128	8.169	B2III	2
NGC 6910 #16	20 23 07.301	+40 46 55.25	11.285	8.512	8.265	8.124	B3	3	(c)
NGC 6910 #14	20 23 07.575	+40 46 08.87	10.880	8.491	8.237	8.149	B0.5V	3	(c)
BD+40 4146	20 23 10.464	+40 45 52.34	10.288	7.731	7.467	7.361	B3	6
HD 229196	20 23 10.784	+40 52 29.85	9.260	6.353	6.079	5.917	O5	2
BD+40 4148	20 23 14.549	+40 45 19.07	11.051	8.167	7.929	7.795	O9.5:V	4
HD 229202	20 23 22.840	+40 09 22.53	10.309	7.604	7.429	7.312	O8V:	2
BD+38 4058	20 23 28.531	+39 20 59.05	11.457	8.157	7.912	7.775	B0V	5
J20240515+4046035	20 24 05.154	+40 46 03.51	12.308	8.653	8.325	8.158	B0.5V	7
HD 229250	20 24 11.733	+39 40 41.54	10.887	7.267	6.984	6.817	O7	5
BD+39 4168	20 24 21.475	+39 46 03.90	10.872	7.343	6.963	6.771	O7	5
BD+40 4159	20 25 06.521	+40 35 49.78	11.343	7.941	7.645	7.490	O9V	7
BD+39 4177	20 25 22.122	+40 13 01.09	9.890	6.857	6.633	6.512	O6.5	5
BD+39 4179	20 25 28.893	+40 12 54.13	12.202	9.074	8.752	8.642	B0III	7
HD 194779	20 25 55.077	+41 20 11.73	7.974	7.182	7.155	7.128	B3II	2
BD+39 4189	20 26 20.922	+39 40 10.06	10.360	7.115	6.803	6.584	B2p?e?	5
HD 194839	20 26 21.545	+41 22 45.65	8.342	5.240	4.961	4.724	B0.5Iae	2
LSII+39 53	20 27 17.572	+39 44 32.60	10.822	8.096	7.833	7.702	O7V:	8
BD+38 4098	20 27 33.010	+38 46 19.62	9.681	6.875	6.663	6.500	B9Ib	2
BD+40 4179	20 27 43.616	+40 35 43.51	10.115	8.419	8.327	8.256	O8V:	2
BD+41 3762	20 28 15.212	+42 25 39.14	11.123	8.288	8.002	7.852	B2V	2
BD+40 4185	20 28 15.471	+40 38 19.81	10.474	8.026	7.859	7.786	B0V:	2
HD 195213	20 28 32.027	+40 49 02.88	9.504	6.668	6.440	6.258	O7	2
J20294666+4105083	20 29 46.672	+41 05 08.32	12.870	9.033	8.636	8.457	B0.5V(n) sb2?	9
J20295701+4109538	20 29 57.010	+41 09 53.84	13.013	9.119	8.702	8.452	B0V	9
J20300788+4123504	20 30 07.877	+41 23 50.44	15.640	9.397	8.739	8.365	O8V	10
V1827 Cyg	20 30 27.300	+41 13 25.13	14.740	7.630	6.850	6.445	Ofpe	10
J20303970+4108489	20 30 39.701	+41 08 48.80	12.429	6.928	6.328	5.980	B0.7Ib	9
J20303980+4136506	20 30 39.805	+41 36 50.63	14.100	9.098	8.574	8.313	O6V	11
J20305111+4120218	20 30 51.115	+41 20 21.78	15.290	9.794	9.193	8.889	B0V	11
J20305552+4109575	20 30 55.516	+40 54 54.03	14.060	9.247	8.759	8.474	B0V	10
J20305772+4109575	20 30 57.727	+41 09 57.51	14.610	9.093	8.514	8.198	O9.5V	10
J20310019+4049497	20 31 00.204	+40 49 49.70	12.077	8.378	8.016	7.826	O7V((f))	9
J20310838+4202422	20 31 08.376	+42 02 42.25	13.102	7.828	7.292	7.023	O9.7II	9
VI Cyg 1	20 31 10.543	+41 31 53.53	12.486	7.968	7.556	7.365	O9V	2
J20311833+4121216	20 31 18.329	+41 21 21.65	14.130	8.607	8.046	7.746	O9V	11
VI Cyg 2	20 31 22.026	+41 31 28.40	11.711	8.075	7.750	7.628	B1Ib:	2
J20312210+4112029	20 31 22.101	+41 12 02.87	14.420	9.397	8.928	8.629	B2V	10
J20313338+4122490	20 31 33.378	+41 22 49.02	14.970	9.744	9.222	8.939	B1V	11
J20313690+4059092	20 31 36.911	+40 59 09.06	15.380	7.913	7.208	6.811	O7Ib(f)	10
J20313693+4201218	20 31 36.921	+42 01 21.79	12.118	7.355	6.956	6.657	B0.7Ib	9
VI Cyg 3	20 31 37.506	+41 13 20.99	11.633	6.498	6.001	5.748	O9:	2
J20314215+4225532	20 31 42.151	+42 25 53.26	13.575	6.245	5.476	5.057	B1Ib	7
J20314540+4118267	20 31 45.403	+41 18 26.73	13.620	8.065	7.552	7.259	O8I	11
J20314605+4043246	20 31 46.053	+40 43 24.61	13.840	8.910	8.484	8.257	B0.5IV	9
J20314965+4128265	20 31 49.658	+41 28 26.50	12.567	9.074	8.768	8.634	O9III	11
BD+41 3794	20 32 02.204	+42 12 26.15	11.399	7.544	7.251	7.040	B0.2III	7
J20320689+4117570	20 32 06.877	+41 17 56.97	15.130	9.624	9.070	8.786	B3V	11
VI Cyg 4	20 32 13.822	+41 27 12.01	11.231	7.582	7.248	7.105	O7IIIf	11
LS III +41 30	20 32 16.563	+41 25 35.67	12.249	8.714	8.389	8.185	O9V	11
J20322734+4055184	20 32 27.339	+40 55 18.25	13.950	8.622	8.156	7.879	B2V	9
LS III +41 32	20 32 27.738	+41 28 52.26	11.986	9.191	8.895	8.766	B0Ib	11
J20323033+4034332	20 32 30.310	+40 34 33.22	14.000	7.892	7.365	7.070	O9.5IV	9
J20323154+4114082	20 32 31.531	+41 14 08.18	14.720	7.817	7.094	6.664	O7.5Ib-II(f)	10
J20323498+4052390	20 32 34.848	+40 52 39.46	14.980	9.435	8.894	8.605	B0.2V	10
J20323486+4056174	20 32 34.865	+40 56 17.35	14.930	9.382	8.858	8.564	O8V	10
J20323843+4040445	20 32 38.441	+40 40 44.48	15.330	8.347	7.705	7.383	O8III	10
VI Cyg 16	20 32 38.571	+41 25 13.79	11.857	8.194	7.918	7.716	O8V(n)	9
VI Cyg 6	20 32 45.450	+41 25 37.57	11.670	7.953	7.617	7.421	O8V	11
J20325002+4123446	20 32 50.016	+41 23 44.70	12.427	8.579	8.188	7.982	O8V	11
J20325919+4124254	20 32 59.057	+41 24 24.79	12.820	8.885	8.523	8.314	O8V	11
J20325964+4115146	20 32 59.633	+41 15 14.66	14.940	9.047	8.451	8.144	B0V	11
J20330292+4117431	20 33 02.913	+41 17 43.16	14.500	8.718	8.165	7.873	O8V	11
J20330292+4047254	20 33 02.928	+40 47 25.29	14.400	7.251	6.632	6.274	O8II((f))	9
J20330879+41131	20 33 08.818	+41 13 17.93	13.290	7.110	6.540	6.225	O4III	11	(d)
V2186 Cyg	20 33 10.502	+41 22 22.44	13.910	9.537	9.113	8.897	B0V	11	(e)
VI Cyg 9	20 33 10.735	+41 15 08.22	12.512	6.468	5.897	5.570	O5If	11
J20331326+4113287	20 33 13.264	+41 13 28.67	15.020	8.982	8.346	8.009	O6V	11
J20331369+4113057	20 33 13.688	+41 13 05.77	14.060	9.034	8.559	8.280	O8V	11
VI Cyg 7	20 33 14.110	+41 20 21.91	11.857	7.248	6.818	6.611	O3If	11
VI Cyg 23	20 33 15.685	+41 20 18.75	12.920	9.333	8.935	8.724	O9V	11
VI Cyg 8D	20 33 16.256	+41 19 00.16	12.580	8.842	8.423	8.239	O8.5V	11
J20331748+4117093	20 33 17.483	+41 17 09.35	13.090	8.354	7.889	7.649	O7V	11
VI Cyg 8C	20 33 17.982	+41 18 31.19	11.059	7.165	6.792	6.579	O5III	11
J20331803+4121366	20 33 18.035	+41 21 36.67	12.698	8.744	8.315	8.113	O8V	11
J20332101+4117401	20 33 21.016	+41 17 40.11	13.630	9.301	8.899	8.672	O9V	11
J20332346+4109130	20 33 23.471	+41 09 12.90	13.500	7.025	6.380	6.050	O5.5V	11
J20332557+4133269	20 33 25.569	+41 33 26.88	12.840	8.168	7.748	7.523	O8.5V	12
J20332674+4110595	20 33 26.756	+41 10 59.42	14.240	8.971	8.434	8.165	O8.5V	11
J20333030+4135578	20 33 30.316	+41 35 57.88	13.790	8.385	7.839	7.568	O8V	12
J20333078+4115226	20 33 30.791	+41 15 22.70	12.645	6.493	5.891	5.542	B1I	11
BD+43 3654	20 33 36.079	+43 59 07.38	11.245	6.636	6.198	5.973	O4If	13	(f)
J20333700+4116113	20 33 36.994	+41 16 11.31	13.530	8.683	8.168	7.929	B0V	11
J20333821+4041064	20 33 38.213	+40 41 06.35	14.700	6.904	6.170	5.745	B0Ia	10
J20333910+4119258	20 33 39.102	+41 19 25.98	12.858	7.230	6.745	6.482	B0Iab	11	(g)
J20334086+4130189	20 33 40.863	+41 30 18.95	13.680	9.263	8.866	8.614	O7V	11
VI Cyg 10	20 33 46.112	+41 33 01.00	11.197	6.294	5.839	5.582	O9.5Ia	2
J20334783+4120415	20 33 47.831	+41 20 41.37	13.051	7.986	7.487	7.209	B1III	11
BD+37 3976	20 33 49.752	+38 17 00.06	10.852	8.686	8.553	8.447	B1.5Vn	2
J20335952+4117354	20 33 59.527	+41 17 35.46	13.180	8.534	8.140	7.889	O9.5V	11
J20340435+4108078	20 34 04.349	+41 08 07.91	14.850	9.685	9.163	8.887	B1V	11
J20340486+4105129	20 34 04.851	+41 05 11.76	14.530	9.560	9.095	8.836	O9V	11
J20340601+4108090	20 34 06.017	+41 08 09.13	14.840	9.047	8.494	8.154	O9.5V	11
VI Cyg 11	20 34 08.514	+41 36 59.39	11.221	6.650	6.226	5.990	O5I	11
J20341350+4135027	20 34 13.511	+41 35 02.86	13.562	8.550	8.148	7.921	O7V	11
J20342193+4117016	20 34 21.934	+41 17 01.66	13.660	8.388	7.878	7.602	O8III + O8III	14	(h)
J20342894+4156171	20 34 28.941	+41 56 17.09	14.090	9.019	8.453	8.207	O9V	15	(i)
J20342959+4131455	20 34 29.599	+41 31 45.49	13.369	7.560	7.030	6.709	O7V	11
J20344410+4051584	20 34 44.146	+40 51 58.67	14.740	8.404	7.796	7.448	O6.5III(f)	10
J20344471+4051465	20 34 44.716	+40 51 46.73	13.815	6.683	6.062	5.731	B0Ia	10
J20345606+4038179	20 34 56.057	+40 38 17.92	13.540	7.440	6.859	6.545	O9.7Iab	9
J20345878+4136174	20 34 58.781	+41 36 17.35	12.865	7.193	6.655	6.356	B0 Ib(n) sb2?	9
LS III +42 17	20 35 10.623	+42 20 22.83	11.692	7.845	7.504	7.318	B1III	7
J20360451+4056129	20 36 04.500	+40 56 13.01	13.950	8.568	7.968	7.685	O5V((f))	9
HD 196489	20 36 24.259	+39 11 40.70	8.614	8.164	8.176	8.179	B3V	16
J20382040+4156563	20 38 20.413	+41 56 56.51	15.340	7.840	7.082	6.686	B0II	7
J20385918+4202395	20 38 59.181	+42 02 39.45	13.270	8.684	8.186	7.906	B0Ib	7
BD+42 3835	20 42 06.863	+43 11 03.72	9.975	7.294	7.049	6.928	O9p...	2
HD 199021	20 52 53.207	+42 36 27.87	8.919	7.180	7.067	6.999	B0V	17

Notes. (a) Variable (Petrie et al. 1973); (b) Eclipsing binary; (c) β Cep variable (Stankov & Handler 2005); (d) Binary; (e) Eclipsing binary (Kiminki et al. 2007); (f) Runaway with bow shock (Comerón & Pasquali 2007); (g) V1393 Cyg; (h) Binary (Kiminki et al. 2009); (i) Runaway with bow shock (Kobulnicki et al. 2010). References. Spectral type source: 1) Petrie et al. (1973); 2) Morgan et al. (1955); 3) Stankov & Handler (2005); 4) Hoag & Applequist (1965); 5) Hiltner (1956); 6) Walker & Hodge (1968); 7) Comerón et al. (2008); 8) Vijapurkar & Drilling (1993); 9) Hanson (2003); 10) Negueruela et al. (2008); 11) Kiminki et al. (2007); 12) Massey & Thompson (1991); 13) Comerón & Pasquali (2007); 14) Kiminki et al. (2009); 15) Kobulnicki et al. (2010); 16) Sato & Kuji (1990); 17) Guetter (1968).

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