2023A&A...671A..36A


Query : 2023A&A...671A..36A

2023A&A...671A..36A - Astronomy and Astrophysics, volume 671A, 36 (2023/3-1)

Quantitative spectroscopy of late O-type main-sequence stars with a hybrid non-LTE method.

ASCHENBRENNER P., PRZYBILLA N. and BUTLER K.

Abstract (from CDS):

Context. Late O-type stars at luminosities log L/L ≲ 5.2 show weak winds with mass-loss rates lower than 10–8M yr–1. This implies that, unlike their more massive and more luminous siblings, their photospheric layers are not strongly affected by the stellar wind.
Aims. A hybrid non-local thermodynamic equilibrium (non-LTE) approach - line-blanketed hydrostatic model atmospheres computed under the assumption of LTE in combination with non-LTE line-formation calculations - is tested for analyses of late O-type stars with masses up to ∼25 M. A sample of 20 mostly sharp-lined Galactic O stars of spectral types O8 to O9.7 and luminosity classes V and IV, previously studied in the literature using full non-LTE model atmospheres, is investigated.
Methods. Hydrostatic and plane-parallel atmospheric structures and synthetic spectra computed with Kurucz's ATLAS12 code together with the non-LTE line-formation codes DETAIL and SURFACE, which account for the effects of turbulent pressure on the atmosphere, were employed. High-resolution spectra were analysed for atmospheric parameters using hydrogen lines, multiple ionisation equilibria, and elemental abundances. Fundamental stellar parameters were derived by considering stellar evolution tracks and Gaia Early Data Release 3 (EDR3) parallaxes. Interstellar reddening was characterised by fitting spectral energy distributions from the UV to the mid-IR.
Results. A high precision and accuracy is achieved for all derived parameters for 16 sample stars (4 objects show composite spectra). Turbulent pressure effects turn out to be significant for the quantitative analysis. Effective temperatures are determined to 1-3% uncertainty levels, surface gravities to 0.05 to 0.10 dex, masses to better than 8%, radii to better than 10%, and luminosities to better than 20% uncertainty typically. Abundances for C, N, O, Ne, Mg, Al, and Si are derived with uncertainties of 0.05-0.10 dex and for helium within 0.03-0.05 dex (1σ standard deviations) in general. Overall, results from previous studies using unified photosphere plus wind (full) non-LTE model atmospheres are reproduced, and with higher precision. The improvements are most pronounced for elemental abundances, and smaller microturbulent velocities are found. An overall good agreement is found between our spectroscopic distances and those from Gaia. Gaia EDR3-based distances to the Lac OB1b association and to the open clusters NGC 2244, IC 1805, NGC 457, and IC 1396 are determined as a byproduct. The derived N/C versus N/O abundance ratios tightly follow the predictions from stellar evolution models. Two ON stars show a very high degree of mixing of CNO-processed material and appear to stem from binary evolution.

Abstract Copyright: © The Authors 2023

Journal keyword(s): stars: abundances - stars: atmospheres - stars: early-type - stars: evolution - stars: fundamental parameters - stars: massive

Simbad objects: 206

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Number of rows : 206
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024
#notes
1 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 11178 1
2 HD 236689 Be* 01 18 33.0726900144 +58 22 30.529513056 9.25 9.74 9.46     B1.5V:ep_sh 49 0
3 BD+57 243 Be* 01 18 54.1114908840 +58 12 06.858916812 9.23 9.90 9.48     B0:IV:e 48 0
4 BD+57 247 * 01 19 10.2720173016 +58 20 57.096955392 9.45 10.14 9.93     O9.5IV 27 0
5 BD+57 249 EB* 01 19 23.0179943424 +58 18 20.253810888 9.83 10.12 9.83     B1V 30 0
6 NGC 457 OpC 01 19 32.9 +58 16 41   6.97 6.4     ~ 244 2
7 BD+57 252 * 01 19 34.1802997848 +58 15 22.131283644 9.2 9.77 9.51     B1IV 44 0
8 HD 7902 s*b 01 19 51.7356954096 +58 12 29.323671624 7.00 7.37 6.96     B5Ia 97 0
9 V* V466 Cas s*r 01 19 53.6180547504 +58 18 30.745534716 13.04 10.74 8.62 6.86 5.44 M0.5Ib 79 0
10 * phi Cas s*y 01 20 04.9164665856 +58 13 53.807643876 6.15 5.66 4.98 4.34 3.78 F0Ia 274 0
11 HD 14633 SB* 02 22 54.2923246536 +41 28 47.724359448 6.14 8.79 8.73 8.69   ON8.5V 224 0
12 2MASS J02292789+6132219 Y*O 02 29 27.8934955920 +61 32 21.981499620 13.37 13.46 12.62     B2.5V 14 0
13 V* KM Cas Or* 02 29 30.4684170480 +61 29 44.163943476 12.21 12.285 11.229 10.990   O9.5V((f)) 46 0
14 IC 1805 23 * 02 29.6 +61 12 12.18 12.31 11.47     B1V 10 0
15 2MASS J02302634+6127432 Y*O 02 30 26.3370140064 +61 27 43.294762044 13.96 13.91 12.80     B2.5V 12 0
16 2MASS J02302883+6132560 Y*O 02 30 28.8361712472 +61 32 56.079204504 14.41 14.34 13.26     B2.5V 12 0
17 2MASS J02302948+6119446 Y*O 02 30 29.4849051072 +61 19 44.723266068 13.53 13.62 12.82     B1.5V 11 0
18 2MASS J02303910+6121053 Y*O 02 30 39.1078891968 +61 21 05.449413636 13.44 13.41 12.56     B1V 13 0
19 IC 1805 68 * 02 30 45.16 +61 16 12.0   13.79 13.16     B2.5V 4 0
20 2MASS J02304857+6117166 Y*O 02 30 48.5722457256 +61 17 16.671533172 12.94 12.98 12.30     B2.5V 15 0
21 2MASS J02305691+6116297 Y*O 02 30 56.9178201240 +61 16 29.759165508 12.77 13.02 12.39     B2.5V 12 0
22 2MASS J02311978+6130161 Y*O 02 31 19.7824367136 +61 30 16.121542860 13.17 13.29 12.47     B2.5V 15 0
23 BD+60 496 Y*O 02 31 56.1710199480 +61 32 13.385154660 10.64 11.10 10.60     B1V 34 0
24 BD+60 497 Y*O 02 31 57.0901516200 +61 36 43.948697940 10.466 9.39 8.85     O6.5V((f))+O8/B0V 104 0
25 LS I +61 275 EB* 02 32 09.6299057496 +61 38 23.556279372 11.59 12.04 11.445 11.64   B1V 31 0
26 BD+60 498 Y*O 02 32 10.8542551368 +61 33 07.940208384 11.61 10.47 9.94     O9V 104 0
27 EM* MWC 50 Y*? 02 32 11.4523605192 +61 21 45.253334772 11.64 11.77 10.87     Be 41 0
28 BD+60 499 Y*O 02 32 16.7518284696 +61 33 14.996422332 10.27 10.85 10.31     O9.5V 76 0
29 LS I +61 280 Y*O 02 32 18.3711931656 +61 27 52.706627028 11.96 12.27 11.61     B1V 27 0
30 LS I +61 281 Y*O 02 32 34.5607509216 +61 32 19.098174984 11.31 11.5 11.1     B1.5V 23 0
31 BD+60 501 Y*O 02 32 36.2781863760 +61 28 25.586191812 11.062 10.02 9.56     O7V(n)((f))z 118 0
32 LS I +61 283 Y*O 02 32 40.8309131016 +61 27 59.823575892 11.44 11.95 11.40     B0.5V 27 0
33 NAME Heart Nebula HII 02 32.7 +61 27           ~ 318 1
34 HD 15558 Y*O 02 32 42.5366901168 +61 27 21.572901360 7.82 8.37 7.87 7.34 6.94 O4.5III(f) 314 0
35 2MASS J02324271+6129345 Y*O 02 32 42.7176295416 +61 29 34.482209316 11.33 11.71 11.22     B1.5V 27 0
36 IC 1805 152 Y*O 02 32 43.5296031792 +61 26 31.923173220 13.52 13.64 12.91     B3V 14 0
37 IC 1805 157 Y*O 02 32 46.9966266096 +61 31 32.109787632 13.89 14.07 13.43     B2.5V 19 0
38 HD 15570 Em* 02 32 49.4207394600 +61 22 42.089384892 8.40 8.80 8.11 7.41 6.86 O4If 305 0
39 IC 1805 OpC 02 32 50.4 +61 28 16           ~ 519 1
40 2MASS J02325466+6122533 Y*O 02 32 54.6610748424 +61 22 53.209092360 12.75 12.95 12.24     B2V 13 0
41 LS I +61 287 Y*O 02 32 55.2304808304 +61 38 56.907143232 10.93 11.32 10.90     B1.5V 25 0
42 2MASS J02325757+6129426 Y*O 02 32 57.5787722064 +61 29 42.573676848 13.15 13.35 12.79     B4 12 0
43 IC 1805 166 Y*O 02 32 57.8246261160 +61 27 26.532821700 12.28 12.56 11.99     B2V 21 0
44 LS I +61 288 Y*O 02 32 58.9820758968 +61 22 23.387625300 12.12 12.39 11.71     B1.5V 24 0
45 2MASS J02325948+6136347 Y*O 02 32 59.4820671288 +61 36 34.643146176 12.45 12.73 12.25     B1.5V 15 0
46 LS I +61 290 Y*O 02 33 04.7257193904 +61 28 21.047565504 11.79 12.13 11.58     B2.5V 30 0
47 IC 1805 175 Y*O 02 33 05.2757131680 +61 27 07.152609852 13.54 13.70 13.07     B2.5V 15 0
48 2MASS J02330903+6127460 Y*O 02 33 09.0364338336 +61 27 46.056433644 13.39 13.58 12.93     B2.5Vnn 16 0
49 BD+60 506 Y*O 02 33 11.4562145568 +61 27 03.111314472 11.28 11.70 11.14     B1IV 32 0
50 IC 1805 188 Y*O 02 33 18.2348197992 +61 32 11.958603432 12.92 12.11 12.16     O9.5IV-V 19 0
51 2MASS J02332048+6132232 Y*O 02 33 20.4917647512 +61 32 23.279265888 13.34 13.60 12.96     B2.5V 13 0
52 HD 15629 Y*O 02 33 20.5873992264 +61 31 18.188762844 8.23 8.85 8.42     O4.5V((fc)) 241 0
53 LS I +61 294 Y*O 02 33 42.9965386248 +61 26 12.258403692 11.28 11.47 10.89     B1V 24 0
54 2MASS J02334432+6126182 Y*O 02 33 44.3274417960 +61 26 18.280507272 13.65 13.59 13.01     B3V 11 0
55 2MASS J02335330+6118262 Y*O 02 33 53.2915030080 +61 18 26.313564924 14.36 14.35 13.63     B2V 12 0
56 BD+60 513 Y*O 02 34 02.5297182912 +61 23 10.877763048 9.38 9.88 9.39     O7Vnz 109 0
57 2MASS J02341941+6106342 Y*O 02 34 19.4133583896 +61 06 34.269132348 13.69 13.64 12.76     B3V 6 0
58 2MASS J02343148+6130350 Y*O 02 34 31.4910714120 +61 30 35.095652208 11.65 11.97 11.51     B2V 26 0
59 LS I +61 298 Y*O 02 34 32.4297049536 +61 47 15.138539124 11.24 11.61 11.01     O9.5-B0.5IV-V 18 0
60 IC 1805 262 * 02 34 35.4350513040 +61 47 14.459370000   12.78 12.20     B5: 6 0
61 2MASS J02344671+6123299 Y*O 02 34 46.7154368016 +61 23 29.891174244 13.22 13.42 12.88     B3V 7 0
62 IC 1805 277 Y*O 02 34 47.6507447112 +61 26 17.127515184 13.35 13.31 12.71     B3V 10 0
63 LS I +61 299 Y*O 02 35 05.2638909984 +61 28 09.926766048 11.19 11.60 11.10     B1V 23 0
64 2MASS J02360396+6125070 Y*O 02 36 03.9683163696 +61 25 07.090459068 13.32 13.50 12.98     B3V 9 0
65 Ass Cas OB 6 As* 02 43 +61.3           ~ 124 0
66 NAME Per Arm PoG 03 30 +45.0           ~ 1519 0
67 V* AE Aur Or* 05 16 18.1493304816 +34 18 44.344404000 5.48 6.18 5.96     O9.5V 564 1
68 * ups Ori SB* 05 31 55.8599595648 -07 18 05.535884975 3.30 4.36 4.63 4.75 5.01 O9.7V 408 0
69 NAME Ori Trapezium OpC 05 35 16.5 -05 23 14           ~ 1621 1
70 M 42 HII 05 35 17 -05 23.4           ~ 4083 0
71 HD 37061 Or* 05 35 31.3649044920 -05 16 02.582064192 6.44 7.09 6.83     O9.5V 355 0
72 NAME Ori I As* 05 38 -02.8           ~ 615 0
73 * mu. Col V* 05 45 59.8950238944 -32 18 23.162261796 3.84 4.90 5.18 5.30 5.57 O9.5V 495 0
74 HD 258691 * 06 30 33.3084227300 +04 41 27.532107066 9.78 10.27 9.70     O9.5V 32 0
75 HD 46056 Y*O 06 31 20.8608343776 +04 50 03.842554740 7.60 8.36 8.16 8.16 8.09 O8Vn 226 0
76 LS VI +04 6 Y*O 06 31 31.4668427136 +04 50 59.708565132 10.31 10.68 10.81 10.87 10.40 B2.5V 35 0
77 HD 259012 ** 06 31 33.4677 +04 50 39.699 8.94 9.59 9.38     B1Vn+B4/A1Ve 49 0
78 ALS 15335 * 06 31 37.0790662416 +04 45 53.589249468 16.15 16.13 15.15     B0.5V 8 0
79 HD 46106 Y*O 06 31 38.3968383096 +05 01 36.396422796 7.33 8.08 7.93 7.76 7.66 O9.7III(n) 156 0
80 NGC 2244 130 Y*O 06 31 47.8870586546 +04 54 18.150241967 11.48 11.925 11.662     B2.5V 25 0
81 HD 259105 Y*O 06 31 52.0018444848 +04 55 57.252934128 8.88 9.57 9.38     B1V 66 0
82 HD 46149 Y*O 06 31 52.5319291296 +05 01 59.178678024 7.03 7.80 7.61 7.54 7.36 O8.5V 277 0
83 HD 46150 Y*O 06 31 55.5205071744 +04 56 34.296516096 6.03 6.86 6.73 6.50 6.41 O5V((f))z 396 0
84 NGC 2244 190 Y*O 06 31 58.9128323712 +04 56 16.248666912 11.04 11.527 11.21     B2.5Vn 25 0
85 LS VI +04 10 Y*O 06 31 58.9383256579 +04 55 39.681933537 10.03 10.77 10.73 10.31 10.07 B1.5V 35 0
86 V* V578 Mon Y*O 06 32 00.6076651296 +04 52 40.886334120 8.01 8.72 8.55 8.09 8.28 B0V+B1V 116 0
87 HD 259172 * 06 32 02.5848405574 +05 05 08.709166201 10.34 10.90 10.68     B2V 44 0
88 LS VI +04 12 Y*O 06 32 06.1360004063 +04 52 15.352618809 9.21 9.84 9.71     B1III 61 0
89 HD 46223 Y*O 06 32 09.3068103600 +04 49 24.705695568 6.73 7.50 7.28 6.95 6.79 O4V((f)) 381 0
90 LS VI +05 8 Y*? 06 32 09.8340224784 +05 02 13.393582743 11.1 10.91 10.41     B2.5V 32 0
91 HD 46202 bC* 06 32 10.4706981304 +04 57 59.764912343 7.60 8.332 8.269 7.98 7.86 O9.2V 285 0
92 NGC 2244 OpC 06 32 10.8 +04 54 50           ~ 634 1
93 NGC 2244 194 Y*O 06 32 15.4828528224 +04 55 20.392268772 12.791 12.322 12.006 11.50 11.53 B6Vne 30 0
94 HD 259238 Y*O 06 32 18.2177777136 +05 03 21.712760568 11.09 11.34 11.06 10.52 10.68 B0V 26 0
95 Cl* NGC 2244 PS 383 * 06 32 22.4937510504 +04 55 34.156061508 15.59   15.39     B3V 7 0
96 HD 259268 * 06 32 23.0467298904 +05 02 45.626891532 11.12 11.35 11.07     B8V 25 0
97 LS VI +04 14 Y*? 06 32 24.2329922066 +04 47 03.762075593 11.22 11.71 11.43     B2.5V 26 0
98 NAME Rosette Nebula HII 06 32 26.76 +04 47 37.1           ~ 492 1
99 HD 259300 Y*O 06 32 29.3911958568 +04 56 56.096456676 11.546 11.08 10.76 10.33 10.34 B3Vp 40 0
100 NGC 2244 334 Y*O 06 32 51.7919732079 +04 47 16.160568228 13.17 13.38 12.95 12.46 12.34 B5V 43 0
101 NGC 2244 345 Y*O 06 33 06.5688668076 +05 06 03.427796689   13.47 12.85     B2 15 0
102 ALS 15339 * 06 33 10.1569653048 +04 59 49.975042056 15.62 15.76 14.98     B3V 7 0
103 EM* GGA 399 Em* 06 33 37.4969183724 +04 48 47.018949782 12.72 12.05 12.46     B0.5V 23 0
104 LS VI +05 12 EB* 06 33 50.5598811767 +05 01 37.602856377 11.22 11.55 11.12     B2.5V 24 0
105 HD 46485 Y*O 06 33 50.9566745256 +04 31 31.613196504 7.92 8.60 8.27   8.10 O7V((f))nzvar? 150 0
106 HD 46484 bC? 06 33 54.4094005920 +04 39 44.607146400 7.49 8.10 7.74     B2Ib 75 0
107 HD 46966 ** 06 36 25.8880460976 +06 04 59.474397540 5.91 6.83 6.87     O8.5IV 207 0
108 Ass CMa OB 1 As* 07 07.0 -10 28           ~ 151 0
109 HD 54879 SB* 07 10 08.1487629504 -11 48 09.838940004 6.8 7.60 7.65     O9.7V 86 0
110 HD 57682 * 07 22 02.0546074728 -08 58 45.766323408 5.20 6.24 6.43     O9.2IV 257 0
111 HD 66788 * 08 04 08.5403348976 -27 29 08.860666488 8.44 9.92 9.83 9.85   O8/9(Ib) 59 0
112 NAME Sex A H2G 10 11 00.5 -04 41 30 12.48 12.13 11.93 11.78   ~ 727 2
113 HD 155889 ** 17 15 50.7533188725 -33 44 13.256102872 5.68 6.54 6.55 7.60   O9.5IV 84 0
114 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 14463 0
115 NGC 6611 6 * 18 18 04.3657552104 -13 43 35.183014428   16.151 15.191     ~ 4 0
116 BD-13 4928 Be* 18 18 42.7761777816 -13 46 50.969988732 10.05 10.604 10.044 10.23 9.345 O9.7IVnn 68 0
117 M 16 OpC 18 18 45.1 -13 47 31           ~ 1029 1
118 BD-13 4930 Y*O 18 18 52.6749052848 -13 49 42.634556148 9.04 9.71 9.45   8.968 O9.7V 106 0
119 Ass Cyg OB 3 As* 20 07 +35.9           ~ 182 0
120 HD 227757 * 20 07 12.7698932544 +36 21 33.434934012 8.63 9.41 9.27     O9.5V 60 0
121 Ass Cyg OB 2 As* 20 33.2 +41 19           ~ 945 0
122 HD 201345 * 21 07 55.4150161776 +33 23 49.228548972   7.611 7.764     ON9.2IV 174 0
123 V* V427 Cep EB* 21 27 32.6056860792 +59 17 40.829630604 9.2 9.52 9.14     B5 33 0
124 HD 204827 SB* 21 28 57.7592315784 +58 44 23.238427956 8.63 8.74 7.94 7.25 6.76 O9.5IV 355 0
125 HD 239683 * 21 29 53.4617547576 +57 48 57.166586964 9.19 9.62 9.32     B3IV 32 0
126 V* V738 Cep EB* 21 29 55.1258516736 +58 56 15.669648420   10.70 10.04     B5 12 0
127 HD 239689 Y*? 21 30 45.9265436880 +57 12 00.161055720 8.40 9.02 8.83     B1.5V 36 0
128 HD 239693 * 21 31 25.9467517608 +57 53 56.492444220 9.36 9.77 9.54     B3V 26 1
129 HD 205196 Pu* 21 31 38.4074213784 +57 30 09.325268748 7.57 7.918 7.427     B0Ib 71 0
130 HD 205329 ** 21 32 20.7180247320 +59 34 21.132246972   8.48 8.07     B5 20 0
131 HD 239703 Em* 21 34 22.5763180296 +59 28 43.782956256   10.12 9.46     B0 14 0
132 BD+58 2292 * 21 34 42.7042041528 +58 39 02.703901320 9.91 10.24 9.92     B5 16 0
133 BD+56 2596 * 21 35 23.4561567336 +57 31 28.053155604 9.98 10.40 10.23     B5 11 0
134 BD+58 2294 Pu* 21 35 24.0150609768 +58 45 10.375485732   10.22 9.90     B5 6 0
135 HD 205794 * 21 35 43.8316516008 +57 28 03.479149560 8.22 8.71 8.43     B0.5V 48 0
136 2MASS J21355654+5720529 Y*O 21 35 56.5572867096 +57 20 52.823851800   10.70 10.39     B4 16 0
137 HD 239710 Y*O 21 36 41.0384768496 +57 30 08.252240544 9.43 9.86 12.74     B3V 34 1
138 HD 205948 * 21 36 47.8726823400 +57 35 02.095597860 8.33 8.90 8.65     B2V 38 0
139 HD 239712 Be* 21 36 59.6409429960 +58 08 24.600845184 8.79 8.93 8.54     B2Vnne 40 0
140 HD 206081 Y*O 21 37 40.93214 +57 33 37.4769 8.08 9.20 8.95 8.82   B1:Vn 30 0
141 HD 239722 * 21 38 14.0559353784 +59 10 03.078474348 10.08 10.16 9.62     B2IV 28 0
142 HD 206183 * 21 38 26.2840588344 +56 58 25.459055868 6.75 7.55 7.41     O9.5IV-V 97 0
143 HD 239724 * 21 38 39.5275902672 +57 22 01.710139188 9.02 9.51 9.14     B1III 32 0
144 HD 206267 SB* 21 38 57.6195772032 +57 29 20.554016280 5.09 5.83 5.62   5.56 O6.0V((f))+O9:V 499 0
145 IC 1396 OpC 21 38 58.8 +57 30 50           ~ 496 1
146 HD 239725 * 21 39 04.7524757808 +56 56 59.403338808 8.95 9.41 9.15     B2.5V 40 0
147 BD+57 2358 Em* 21 39 14.0792494560 +57 48 04.768082676   10.35 10.18     B5 17 0
148 HD 239729 Y*? 21 39 27.4057254792 +57 29 00.810299364 8.17 8.71 8.35   7.96 B0V 76 0
149 HD 239731 * 21 39 44.4352855080 +58 14 44.006171964 8.82 9.36 9.13     B5 21 0
150 IC 1393 Sy2 21 40 14.2427066832 -22 24 41.112301284   15.95       ~ 20 0
151 BD+56 2622 Y*O 21 40 18.3672173616 +57 30 39.371247792   10.32 10.12     B5 11 0
152 HD 239738 * 21 41 58.5348465048 +58 30 00.209920752 7.84 8.27 8.57     B2IV 28 0
153 HD 206773 Be* 21 42 24.1853979312 +57 44 09.795762276 6.30 7.10 6.87     B0V:pe 169 0
154 BD+57 2376 Em* 21 42 33.5987730240 +58 14 39.208453800 9.7 10.03 9.76     B5 19 0
155 HD 239742 * 21 42 52.1025167088 +57 01 01.028642880 9.05 9.61 9.41     B2V 37 0
156 HD 239746 * 21 43 22.6165190328 +58 50 42.266805612 9.8 10.25 10.04     B8 15 0
157 HD 239745 Em* 21 43 24.4643840616 +57 01 23.356317432 8.60 9.21 8.92     B1V 40 0
158 HD 239748 * 21 43 41.3010883848 +58 14 23.293726980 8.26 8.92 8.75     B1V 33 0
159 BD+57 2395 * 21 46 11.0635141968 +57 47 33.691363764   9.91 9.56     B2 16 0
160 BD+57 2395B * 21 46 11.6437521552 +57 47 52.908997920   10.58 10.15     B3V 19 0
161 V* AI Cep EB* 21 46 22.5913668360 +56 55 01.816723704 9.6 9.84 9.31     B0.5V 63 0
162 HD 207538 * 21 47 39.7896725544 +59 42 01.348647696 7 7.55 7.30     O9.7IV 198 1
163 Ass Cep OB 2 As* 21 51 +60.0           ~ 294 0
164 BD+40 4771 SB* 22 17 12.0459822336 +40 58 04.748343204   9.53 9.46 9.4   A0 14 0
165 HD 212153 ** 22 21 21.1320409971 +41 47 48.116544912   8.32 8.34     A0 20 0
166 BD+42 4370 * 22 22 41.3806544688 +42 57 04.276887948   9.37 9.29     B8 9 0
167 HD 212668 * 22 25 05.9814964824 +44 32 18.855537792   8.03 8.09     A0 11 0
168 HD 212732 * 22 25 43.6908121992 +38 49 26.350792824   9.48 9.52     A0 10 0
169 BD+43 4205 * 22 27 17.3046952032 +44 22 45.511173516   9.89 9.85     B8 9 0
170 HD 212978 ** 22 27 26.4985235856 +39 48 36.093227436 5.23 6.00 6.16     B2V 114 0
171 BD+40 4831 Pu* 22 29 42.6877499448 +40 55 19.111515168   9.85 9.65     A5 9 0
172 HD 213390 * 22 30 12.3296784456 +44 26 18.096506916   8.93 8.89     B9 11 0
173 * 6 Lac SB* 22 30 29.2606939494 +43 07 24.155257733 3.68 4.400 4.511     B2IV 159 0
174 HD 213484 * 22 30 54.4050425280 +43 25 40.137693888   8.28 8.28     B9 10 0
175 BD+42 4429 * 22 31 45.2779618896 +43 16 52.153080060   9.93 9.95     A0 8 0
176 HD 213800 * 22 33 19.9470245160 +42 23 41.753129172   9.16 9.17     A0 9 0
177 BD+36 4868 * 22 33 20.5137932760 +36 47 49.560932004 10.64 10.59 10.50 10.58   B9 8 0
178 BD+40 4852 * 22 33 48.1392385896 +41 40 27.705339768   9.90 9.87     A0 9 0
179 HD 213976 * 22 34 30.1849059912 +40 46 29.635106412 6.83 6.883 7.022     B1.5V 63 0
180 LBN 094.98-16.95 HII 22 34 37.9 +40 40 00           ~ 25 0
181 HD 214098 * 22 35 18.1085794680 +43 40 51.865442796   8.27 8.32     B8 11 0
182 * 8 Lac A Be* 22 35 52.2827504304 +39 38 03.586773768 4.68 5.52 5.69     B1Vne 172 0
183 HD 214179 Pu* 22 35 54.4811858616 +43 41 26.372609268   9.65 9.62     A0 11 0
184 HD 214243 * 22 36 16.6657393272 +40 05 19.555374228 7.620 8.210 8.310     B6IV 31 0
185 HD 214263 * 22 36 22.3252254648 +37 50 32.008772796 5.94 6.695 6.833     B2V 51 0
186 HD 214432 * 22 37 28.7225768472 +39 26 19.918074444   7.47 7.57     B3V 53 0
187 BD+36 4896 * 22 38 54.9130753056 +36 55 42.183570324   9.76 9.68     A2 12 0
188 * 10 Lac ** 22 39 15.6786372 +39 03 00.971152 3.650 4.670 4.880 4.98 5.19 O9V 758 0
189 BD+38 4834 * 22 40 12.5425902360 +38 58 24.544904592   9.70 9.59     A2 17 0
190 NAME I Lac As* 22 41 +38.5           ~ 152 0
191 HD 214977 * 22 41 23.7319314120 +41 02 15.973346580   9.36 9.35     A2 18 0
192 * 12 Lac bC* 22 41 28.6495065456 +40 13 31.609736580 4.24 5.080 5.229     B2III 357 0
193 HD 215191 * 22 42 55.4466891648 +37 48 09.840220380 5.53 6.290 6.421     B1V 88 0
194 HD 215211 * 22 43 03.3502160496 +38 46 07.085048772   8.59 8.61     B8V 22 0
195 HD 215271 * 22 43 15.2152141872 +43 46 25.280298228   10.61 10.48     A0 12 0
196 BD+39 4917 * 22 43 36.6895712712 +40 23 06.396035532   9.99 9.89     A2 14 0
197 BD+39 4920 * 22 44 43.3171117488 +40 33 16.066609992   9.98 9.89     B8 15 0
198 BD+38 4883 * 22 51 50.1859986216 +39 08 41.632112832   9.46 9.49     B8 18 0
199 HD 216537 * 22 53 07.3484537280 +43 03 21.434926824   8.80 8.78     B9 12 0
200 HD 216684 * 22 54 21.2116817352 +43 31 42.654253872   7.74 7.76     B8V 36 0
201 HD 216815 * 22 55 31.4603130144 +43 17 35.808079704   8.39 8.33     A2 14 0
202 HD 216851 Be* 22 55 47.0642243040 +43 33 33.443380440 7.55 8.02 7.97     B3V:n 53 0
203 * 16 Lac bC* 22 56 23.6299283136 +41 36 13.948480440 4.61 5.436 5.587     B2IV 314 0
204 HD 217101 * 22 57 40.7378078160 +39 18 31.592840184 5.23 6.03 6.18     B2IV-V 118 0
205 NAME Local Arm reg ~ ~           ~ 540 0
206 NAME Local Group GrG ~ ~           ~ 8415 0

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