2024A&A...690A.176N

Query : 2024A&A...690A.176N

2024A&A...690A.176N - Astronomy and Astrophysics, volume 690A176 (2024/10-1)

The IACOB project XII. New grid of northern standards for the spectral classification of B-type stars.

NEGUERUELA I., SIMON-DIAZ S., DE BURGOS A., CASASBUENAS A. and BECK P.G.

Abstract (from CDS):

Context. With the advent of large spectroscopic surveys, automated stellar parameter determination has become commonplace. Nevertheless, spectral classification still offers a quick and useful alternative for obtaining parameter estimates for large samples of spectra of varying quality.
Aims. We present a new atlas of stellar spectra covering the B-type range, with the intention of providing detailed classification criteria valid for modern spectra and improving the grid of reliable standards. This new grid will be used in future works to provide classification criteria beyond the classical classification range and addressing, in particular, the use of Gaia/RVS spectra.
Methods. We analysed historical standards by means of multiple high-resolution spectra, marking out problematic cases and complementing the grid with a new set of reliable comparators. We then elaborated on a new set of classification criteria based on high-quality R = 4000 spectra.
Results. Our new classification grid is much thicker than any previous set of standards, presenting a high degree of self-consistency. Although it is based entirely on morphological criteria, the grid demonstrates a much better correlation with different physical parameters.
Conclusions. The new grid can be used to study classification criteria in other spectral ranges, providing a valuable tool for the study of B-type stars that covers a very wide range of temperatures, luminosities, and stellar masses. The very process of classification also offers valuable insights into stellar evolution.

Abstract Copyright: © The Authors 2024

Journal keyword(s): surveys - binaries: general - stars: early-type - stars: evolution - stars: fundamental parameters - supergiants

VizieR on-line data: <Available at CDS (J/A+A/690/A176): tablef1.dat>

Simbad objects: 257

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Number of rows : 257
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 Cl Blanco 1 OpC 00 03 04.1 -29 48 55           ~ 380 0
2 * gam Peg bC* 00 13 14.1523490172 +15 11 00.954346538 1.75 2.61 2.84 2.94 3.13 B2IV 720 0
3 HD 1279 * 00 17 09.0440331312 +47 56 50.661966660 5.36 5.764 5.852     B7III 73 0
4 HD 1383 SB* 00 18 17.7370251744 +61 43 37.404185232 7.23 7.89 7.63     B0II 91 0
5 * 12 Cas * 00 24 47.5054725480 +61 49 51.808098288   5.375 5.377     B9III 68 0
6 HD 2083 Em* 00 25 51.2392765848 +71 48 25.650551160 6.09 6.874 6.905     B0.2V 63 0
7 * kap Cas s*b 00 32 59.9918836206 +62 55 54.413126128 3.50 4.30 4.16 4.02 3.96 BC0.7Ia 474 0
8 HD 3240 * 00 36 08.3101957104 +54 10 06.419675676 4.58 4.967 5.076     B8IV 75 0
9 * zet Cas bC? 00 36 58.2844874846 +53 53 48.877599163 2.58 3.47 3.66 3.74 3.95 B2IV 470 0
10 * ksi Cas SB* 00 42 03.8922075864 +50 30 45.120403944 4.05 4.71 4.81 4.82 4.94 B3IV 148 0
11 * 68 Cas Pu* 00 44 26.1915514056 +47 51 50.342883408   5.520 5.648     B5V 113 0
12 * omi Cas Be* 00 44 43.5186007265 +48 17 03.731037403 3.91 4.44 4.50 4.45 4.50 B5IIIe 291 0
13 * nu. And SB* 00 49 48.8463243776 +41 04 44.079221948 3.80 4.38 4.53 4.56 4.71 B5V 229 0
14 HD 5551 s*b 00 58 26.8328257680 +63 42 49.032881460 7.97 8.26 7.76     B1.5Iab 64 0
15 HD 6675 * 01 09 13.0728092880 +69 41 11.491587240 6.57 7.161 6.938     B0.2III 60 0
16 NGC 457 OpC 01 19 32.4 +58 16 40   6.97 6.4     ~ 259 2
17 HD 7902 s*b 01 19 51.7356954096 +58 12 29.323671624 7.00 7.37 6.96     B5Iab 103 0
18 HD 9311 s*b 01 33 14.0052506160 +60 41 11.174675424 7.19 7.58 7.29     B5Ib 91 0
19 M 103 OpC 01 33 21.1 +60 39 13   7.72 7.4     ~ 212 0
20 * tau And V* 01 40 34.8161856549 +40 34 37.339701270 4.44 4.85 4.94 4.95 5.02 B8III 85 0
21 * phi Per Be* 01 43 39.6379691568 +50 41 19.433124998 3.10 4.02 4.06 3.90 3.88 B1.5V:e-shell 594 0
22 NGC 663 OpC 01 46 22.2 +61 12 53   7.78 7.1     ~ 269 0
23 * 53 Cas s*b 02 03 00.1876117560 +64 23 24.064866924 5.69 5.930 5.614     B8Ib 119 0
24 * 5 Per s*b 02 11 29.1934233120 +57 38 43.964680956 6.23 6.68 6.35 6.02 5.75 B5Ia 191 0
25 HD 13256 s*b 02 11 43.9098216480 +60 42 44.500379976 9.8 9.69 8.68     B1Ia 71 0
26 HD 13841 s*b 02 16 46.3906698552 +57 01 45.670054584 6.95 7.60 7.37 7.11 6.95 B1.5Ib 132 0
27 HD 13854 s*b 02 16 51.7162480872 +57 03 18.882144756 6.10 6.76 6.48 6.14 5.95 B1Iab 217 0
28 HD 13969 * 02 17 49.8454024416 +57 05 25.578297996 8.56 9.15 8.0183 8.56 7.5970 B0.7III 76 0
29 * chi Per * 02 18 04.5845635872 +57 30 58.759401204   7.036 6.0230     G7.0III 179 1
30 V* V757 Per bC* 02 18 23.0493577512 +57 00 36.728373708 8.05 8.67 7.8288 8.17 7.4510 B0.7II 88 0
31 NGC 869 OpC 02 18 57.0 +57 08 02           ~ 504 0
32 * 61 And s*b 02 19 04.4525174952 +57 08 07.795069656 6.63 7.00 6.5678   6.6876 B3Ia 212 0
33 HD 14143 s*b 02 19 13.9420338600 +57 10 09.234950232 6.71 7.16 6.7000     B2Ia 208 0
34 HD 14322 s*b 02 20 42.9186920184 +55 54 32.680603404 6.87 7.16 6.85 6.44 6.22 B8Iab 98 0
35 Ass Per OB 1 As* 02 21 +57.6           ~ 181 1
36 HD 14443 V* 02 22 00.5764087032 +57 08 41.872012908 7.85 8.39 7.6934 7.70 7.2734 BC2Ib 113 0
37 HD 14542 s*b 02 23 00.4259329872 +57 23 13.220532924 7.46 7.60 6.9770   6.5893 B8Iab 120 0
38 * 10 Per s*b 02 25 16.0283450208 +56 36 35.354429280 5.95 6.56 6.26 5.93 5.74 B2Ia 248 0
39 HD 14956 s*b 02 26 45.6955268424 +57 40 45.044622588 7.63 7.92 7.20 6.56 6.05 B1.5Ia 154 0
40 HD 15497 s*b 02 31 53.3760247896 +57 41 51.509327532 7.73 7.80 7.02 6.31 5.70 B6Ia 138 0
41 NGC 957 OpC 02 33 25.4 +57 33 13   8.34 7.6     ~ 110 0
42 HD 15690 s*b 02 33 32.7864443808 +57 32 14.747812368 10.055 8.54 8.02     B2Iab-Ib 93 0
43 * ome For * 02 33 50.7014978880 -28 13 56.415570096 4.7 4.90 4.96     B9.5IV 73 0
44 HD 16808 s*b 02 44 06.7751354136 +58 19 34.583586132 10.332 9.07 8.64     B0.2Ib 49 0
45 * pi. Cet SB* 02 44 07.3477594066 -13 51 31.279407049 3.66 4.112 4.236     B8IV 349 0
46 HD 17088 s*b 02 46 51.4503254424 +57 44 01.684040676 8.37 8.27 7.61     B9Ia 69 0
47 HD 17145 s*b 02 47 24.2471821992 +57 40 37.592649912 8.97 8.98 8.16 7.39 6.76 B6Iab 71 0
48 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 7988 0
49 HD 19803 * 03 10 41.7339328512 -15 26 10.218409944   9.74 8.52     K1III 12 0
50 HD 19805 * 03 13 05.2560841728 +49 00 33.855831288   8.07 7.96     B9.5V 101 0
51 * 29 Per Pu* 03 18 37.7416927200 +50 13 19.834697676 6.232 5.074 5.157     B3V 167 0
52 * 31 Per Pu* 03 19 07.6392847536 +50 05 41.889763428 4.44 4.962 5.032     B5V 146 0
53 ACO 426 ClG 03 19 47.6 +41 30 54           ~ 2508 1
54 HD 20809 * 03 23 13.1970566400 +49 12 47.774817972   5.23 5.30     B5V 150 0
55 * alf Per V* 03 24 19.3700924 +49 51 40.245455 2.64 2.27 1.79     F5Ib 870 1
56 HD 21071 Pu* 03 25 57.3820460520 +49 07 14.729885580 5.53 6.02 6.09     B7V 180 0
57 Cl Melotte 20 MGr 03 26 50.6 +48 51 48           ~ 928 0
58 HD 21279 SB* 03 27 55.7799652296 +47 44 09.350746332   7.29 7.25     B8.5V 76 0
59 HD 21278 SB* 03 28 03.0707602272 +49 03 46.325803896   4.89 4.97     B5V 220 0
60 HD 21483 * 03 28 46.6537212648 +30 22 31.231016796 7.080 7.390 7.070     B3III 155 0
61 HD 21291 s*b 03 29 04.1328896160 +59 56 25.201164588 4.40 4.63 4.22 3.84 3.46 B9Ia 298 0
62 * 34 Per * 03 29 22.0494961351 +49 30 32.230623601 4.01 4.610 4.735     B3V 172 0
63 HD 21389 sg* 03 29 54.7436040912 +58 52 43.496880384 4.99 5.10 4.54 4.03 3.53 A0Ia 305 0
64 HD 21661 * 03 31 49.0389469824 +49 24 03.939105996   6.467 6.411     B9II-III 40 0
65 HD 21672 * 03 31 53.9456792880 +48 44 06.519249276   6.61 6.63     B8V 87 0
66 HD 21931 * 03 34 12.9646849896 +48 37 02.908747200   7.39 7.37     B9V 88 0
67 * o Per * 03 42 22.6459308614 +33 57 54.093701142 4.13 4.912 4.972     B0.5V 315 0
68 * del Per Be* 03 42 55.4928046977 +47 47 14.988257477 2.38 2.89 3.01 2.99 3.10 B5III 328 0
69 * omi Per SB* 03 44 19.1337687984 +32 17 17.687367960 3.13 3.91 3.91 3.71 3.71 B1III 628 0
70 * 16 Tau V* 03 44 48.2149362048 +24 17 22.083331452 5.09 5.42 5.46 5.42 5.47 B7V 272 0
71 * 17 Tau Be* 03 44 52.5370897890 +24 06 48.016260072 3.19 3.59 3.70 3.71 3.80 B6IIIe 415 1
72 * 18 Tau PM* 03 45 09.7401340368 +24 50 21.343198416 5.21 5.57 5.64 5.61 5.68 B8V 293 0
73 * q Tau SB* 03 45 12.4999931614 +24 28 02.185543730 3.73 4.19 4.30 4.30 4.40 B6IV 288 0
74 * 20 Tau PM* 03 45 49.6081548365 +24 22 03.877565838 3.40 3.80 3.87 3.85 3.90 B7III 451 1
75 * 21 Tau PM* 03 45 54.4764507648 +24 33 16.235698248 5.49 5.72 5.76 5.71 5.74 B8V 234 0
76 * 22 Tau ** 03 46 02.9003257344 +24 31 40.428415632   6.402 6.421   6.41 A0Vn 183 0
77 * 23 Tau Be* 03 46 19.5858871361 +23 56 54.092177220 3.70 4.12 4.18   4.16 B6IV(e) 446 2
78 HD 23682 * 03 46 35.6771989128 -12 25 37.877149704   10.19 9.32     G6/8IV 8 0
79 Cl Melotte 22 OpC 03 46 38.0 +24 10 41           ~ 3679 0
80 HD 23568 ** 03 46 59.3943532032 +24 31 12.448365564   6.83 6.82   6.76 B9.5V 165 0
81 * eta Tau Be* 03 47 29.0765529 +24 06 18.488347 2.44 2.78 2.87 2.84 2.88 B7III 557 1
82 HD 23753 PM* 03 48 20.8167826752 +23 25 16.495877028 5.06 5.38 5.45 5.42 5.48 B8V 194 0
83 * 27 Tau SB* 03 49 09.7430578114 +24 03 12.301679809 3.18 3.54 3.63 3.62 3.68 B8III 387 0
84 * 28 Tau Be* 03 49 11.2165977912 +24 08 12.156712008 4.73 5.01 5.09   5.08 B8Vne 494 0
85 HD 23873 * 03 49 21.7502453688 +24 22 51.434157000   6.563 6.586   6.57 B9.5V 155 0
86 NGC 1444 OpC 03 49 26.6 +52 39 10   7.04 6.6     ~ 73 0
87 HD 23675 BS? 03 49 27.5698156680 +52 39 19.453394520 8.265 7.12 6.82     B0.5III 93 0
88 HD 23923 * 03 49 43.5315887616 +23 42 42.667696476   6.104 6.153   6.18 B8.5V 173 0
89 HD 24131 * 03 51 53.7187356648 +34 21 32.823349956 4.96 5.730 5.772     B1V 183 0
90 * zet Per s*b 03 54 07.9224751 +31 53 01.081262 2.19 2.97 2.85 2.71 2.62 B1Ib 881 0
91 * eps Per bC* 03 57 51.2393818140 +40 00 36.719213615 1.71 2.71 2.89 2.96 3.14 B0.5III 533 0
92 HD 26739 Em* 04 13 38.1466725144 -01 08 59.056715940 5.76 6.296 6.423     B4V 75 0
93 * d Per bC* 04 21 33.1662438000 +46 29 55.964841936 4.31 4.757 4.812     B4IV 200 1
94 HD 27936 PM* 04 24 22.0337888136 -05 31 04.556770860   9.54 8.96     G0V 11 0
95 * 1 Cam ** 04 32 01.84227 +53 54 39.0450 6.41 5.876 5.772     B0III+B0IV/V 108 0
96 * 49 Eri V* 04 37 13.6756755060 +00 59 53.980114702   5.193 5.315     B8IV 82 0
97 * mu. Eri SB* 04 45 30.1514281206 -03 15 16.775320589 3.26 3.87 4.00     B5IV 170 0
98 * pi.03 Ori PM* 04 49 50.4112051485 +06 57 40.600622266 3.620 3.630 3.190 2.77 2.51 F6V 601 0
99 * pi.04 Ori SB* 04 51 12.3657730111 +05 36 18.373859886 2.700 3.500 3.680 3.74 3.90 B2III 319 0
100 HD 31327 * 04 56 20.0879684184 +36 10 06.713559372 6.03 6.426 6.089     B2II 96 0
101 HD 32612 * 05 03 52.1246868960 -14 22 12.827588844   6.223 6.406     B2IV 87 0
102 * eta Aur PM* 05 06 30.8941413263 +41 14 04.112669983 2.33 3.00 3.18 3.23 3.40 B3V 391 0
103 * bet Ori s*b 05 14 32.27210 -08 12 05.8981 -0.56 0.10 0.13 0.13 0.15 B8Ia 786 0
104 * tau Ori * 05 17 36.3903358088 -06 50 39.866785352 3.01 3.47 3.59     B6III 198 0
105 * rho Aur SB* 05 21 48.4165451880 +41 48 16.459353360   5.070 5.207     B4V 167 0
106 HD 35299 Pu* 05 23 42.3086240496 -00 09 35.347024692 4.610 5.490 5.700 5.77 5.96 B1.5V 217 0
107 * gam Ori V* 05 25 07.86325 +06 20 58.9318 0.54 1.42 1.64 1.73 1.95 B2III 542 1
108 * bet Tau PM* 05 26 17.51312 +28 36 26.8262 1.03 1.52 1.65 1.66 1.76 B7III 380 2
109 HD 35600 s*b 05 27 08.2723588272 +30 12 30.969836964 5.56 5.861 5.720     B9Ib 88 0
110 HD 35912 * 05 28 01.4701489584 +01 17 53.700185940 5.52 6.212 6.380     B2V 167 0
111 HD 36285 * 05 30 20.7537108216 -07 26 05.338118076 5.29 6.130 6.313     B2V 130 0
112 HD 36430 * 05 31 20.8933113744 -06 42 30.168166680 5.29 6.041 6.208     B3V 144 0
113 HD 36212 * 05 31 45.5362354416 +34 52 54.959540700 7.61 7.98 7.81     B3II 56 0
114 * ups Ori SB* 05 31 55.8599595648 -07 18 05.535884975 3.30 4.36 4.63 4.75 5.01 O9.7V 426 0
115 HD 36591 V* 05 32 41.3510096736 -01 35 30.595447356 4.240 5.15 5.34     B1IV 255 0
116 * chi Aur s*b 05 32 43.6743764213 +32 11 31.280527096 4.68 5.15 4.79 4.42 4.15 B4Ia 219 0
117 HD 36629 Y*O 05 32 57.0824474232 -04 33 59.339585016 7.01 7.67 7.65 7.53 7.53 B2V 201 0
118 * phi01 Ori Y*O 05 34 49.2376273598 +09 29 22.510380606 3.29 4.26 4.41 4.42 4.59 B0.2IV 272 0
119 HD 36936 * 05 34 59.0052704976 -04 21 15.320553408   7.44 7.55     B5V 70 0
120 HD 36960 * 05 35 02.6823091513 -06 00 07.308349203 3.52 4.50 4.72     B0.5V 283 0
121 * c Ori Y*O 05 35 23.1646530684 -04 50 18.059784995 3.46 4.40 4.59 4.67 4.85 B1V+? 232 0
122 * tet02 Ori B Y*O 05 35 26.4007537560 -05 25 00.793767576 5.36 6.29 6.38 6.29 11.050 B0.7V 206 0
123 * eps Ori s*b 05 36 12.81335 -01 12 06.9089 0.48 1.51 1.69 1.76 1.93 B0Ia 921 0
124 HD 37744 V* 05 40 37.2968503824 -02 49 30.852237396 5.14 6.02 6.22     B1.5V 164 0
125 * kap Ori s*b 05 47 45.3888404 -09 40 10.577707 0.87 1.88 2.06 2.09 2.27 B0.5Ia 588 0
126 * 134 Tau * 05 49 32.9303335271 +12 39 04.760685507 4.68 4.811 4.875     B9V 208 0
127 HD 250289 Be* 06 01 05.8696266144 +23 20 20.383138500 7.74 8.71 8.23     B2III:e 71 0
128 NGC 2129 OpC 06 01 06.6 +23 20 04   7.31 6.7     ~ 120 0
129 * chi02 Ori s*b 06 03 55.1843706432 +20 08 18.428141364 4.24 4.91 4.63 4.32 4.10 B2Ia 465 0
130 HD 41692 * 06 06 38.7363839832 -04 11 37.808375208 4.71 5.231 5.362     B4III 135 0
131 HD 42041 * 06 08 08.1615469560 -10 34 13.640190708   7.98 7.87     A1V 12 0
132 * 3 Gem s*b 06 09 43.9852949424 +23 06 48.472220448 5.33 5.96 5.75     B2.5Ib 234 0
133 * 12 Gem * 06 19 22.5236029008 +23 16 28.221772116 7.64 7.37 6.97     B9II 68 1
134 * bet CMa bC* 06 22 41.9853527 -17 57 21.307352 0.77 1.73 1.97 2.11 2.35 B1II-III 748 0
135 HD 46075 * 06 31 39.3798829272 +11 47 32.175475836   6.53 6.65     B8IV 53 0
136 * ksi01 CMa bC* 06 31 51.3662820799 -23 25 06.319934859 3.10 4.09 4.33 4.45 4.72 B0.7IV 336 0
137 * 13 Mon sg* 06 32 54.2279021568 +07 19 58.690911432 4.30 4.50 4.50 4.40 4.36 A0Ib 208 1
138 NGC 2264 OpC 06 40 53.7 +09 52 32           ~ 1876 0
139 HD 48434 s*b 06 43 38.6456583720 +03 55 57.109225980 4.99 5.88 5.90     B0III 166 0
140 HD 49567 * 06 49 03.6560827200 +01 00 07.442689536 5.34 6.001 6.150     B3III 81 0
141 * 33 Gem Pe* 06 49 49.8362378064 +16 12 10.382708016 5.24 5.72 5.87     B9III 158 0
142 * 43 Cam * 06 53 42.2482692144 +68 53 17.919625020 4.54 4.975 5.096     B6III 68 0
143 * iot CMa s*b 06 56 08.2245944314 -17 03 15.259069948 3.62 4.297 4.385 6.40   B3Ib 184 0
144 * eps CMa * 06 58 37.54876 -28 58 19.5102 0.36 1.29 1.50 1.59 1.80 B1.5II 519 0
145 * 40 Gem ** 06 59 27.9326561760 +25 54 50.987089260 5.71 6.280 6.397     B9III 94 0
146 * omi02 CMa s*b 07 03 01.4713413613 -23 49 59.858307121 2.14 2.94 3.02 3.01 3.10 B3Ia 336 0
147 * gam CMa * 07 03 45.4934693195 -15 37 59.833212992 3.52 4.00 4.12 4.13 4.23 B8II 193 0
148 HD 53929 * 07 07 06.4712319600 +04 54 38.091397320 5.52 5.961 6.088     B9III 105 0
149 HD 57608 * 07 22 03.4786871760 +00 10 37.637998896 5.62 5.897 5.971     B9II-III 48 0
150 * eta CMa s*b 07 24 05.70228 -29 18 11.1798 1.65 2.37 2.45 2.38 2.44 B5Ia 379 0
151 * zet CMi * 07 51 41.9887267800 +01 46 00.726461076 4.58 5.03 5.16 5.18 5.33 B8II 102 0
152 NGC 2516 OpC 07 58 00.5 -60 46 36           ~ 793 0
153 * eta Leo sg* 10 07 19.9523915176 +16 45 45.587968398 3.17 3.39 3.41 3.32 3.35 A0Ib 351 0
154 * alf Leo PM* 10 08 22.31099 +11 58 01.9516 0.88 1.24 1.40 1.37 1.47 B8IVn 891 1
155 * bet Sex a2* 10 30 17.4802898904 -00 38 13.314537996 4.43 4.96 5.10 5.13 5.27 B6V 193 0
156 * rho Leo s*b 10 32 48.6703908997 +09 18 23.705339948 2.780 3.720 3.870 3.90 4.06 B1Iab 550 0
157 HD 306414 HXB 11 21 46.8238550520 -59 51 47.970396396 10.12 10.69 10.23 10.00   B1Ia 162 0
158 * 90 Leo ** 11 34 42.49024 +16 47 48.8956 5.150 5.780 5.940     B6.6(IV)+B3.7(V) 152 0
159 * gam UMa Em* 11 53 49.8473166 +53 41 41.135025 2.440 2.450 2.440 2.44 2.47 A0V 417 0
160 * eta UMa PM* 13 47 32.43776 +49 18 47.7602 0.99 1.67 1.86 1.98 2.16 B3V 630 0
161 * alf Dra SB* 14 04 23.3575968507 +64 22 33.130623243 3.520 3.640 3.680     A0III 290 0
162 * ups Her PM* 16 02 47.8978183032 +46 02 12.133917132 4.33 4.616 4.709     B9.5III 248 0
163 * bet02 Sco SB* 16 05 26.5686169680 -19 48 06.845424840 4.19 4.87 4.89 5.58   B2V 229 0
164 * ome Sco bC* 16 06 48.4249866846 -20 40 09.079866331 3.10 3.92 3.97 3.91 3.99 B1V 492 0
165 NGC 6067 OpC 16 13 10.2 -54 13 48           ~ 239 0
166 * tau Her Pu* 16 19 44.4367980146 +46 18 48.102135319 3.190 3.73 3.87 4.00 4.16 B5V 417 0
167 * sig Sco bC* 16 21 11.3157134 -25 35 34.051476 2.32 3.02 2.89 1.69 1.58 B1III+B1:V 898 0
168 * i Sco * 16 30 12.4752690460 -25 06 54.796568058 3.93 4.72 4.79 4.85 4.99 B2.5V 319 1
169 HD 148688 s*b 16 31 41.7687715992 -41 49 01.732565676 5.16 5.78 5.39 5.05 4.70 B1Iaeqp 170 0
170 * tau Sco * 16 35 52.9528530 -28 12 57.661515 1.55 2.56 2.81 2.93 3.18 B0V 959 0
171 HD 152235 s*b 16 53 58.8528412848 -41 59 39.577848180 6.47 6.92 6.38 5.84 5.42 B0.5Ia 205 0
172 HD 154445 * 17 05 32.2587926880 -00 53 31.437713328 5.10 5.73 5.61 5.39 5.34 B1V 276 0
173 * zet Dra ** 17 08 47.1877295740 +65 42 52.723177105 2.63 3.06 3.17 3.23 3.35 B8III 248 0
174 * iot Her bC* 17 39 27.8868980278 +46 00 22.792978043 2.940 3.630 3.800     B3IV 470 1
175 HD 161572 * 17 45 57.0657876600 +05 41 39.963638724   7.59 7.59     B5V 75 0
176 IC 4665 OpC 17 46 04.0 +05 36 54           ~ 407 0
177 HD 161573 SB* 17 46 07.3255120272 +05 31 48.717378912   6.824 6.848     B4 84 0
178 HD 161677 * 17 46 41.0414298072 +05 46 27.384818520   7.113 7.125     B8 82 0
179 HD 161672 * 17 49 51.3418791888 -53 19 34.085837532   8.42 7.97     F2II 19 0
180 * 67 Oph s*b 18 00 38.7157893000 +02 55 53.633402904 3.34 3.96 3.93 3.84 3.81 B4Ib-II 422 0
181 HD 164402 s*b 18 01 54.3809958600 -22 46 49.059228432 4.88 5.77 5.77 5.74 5.69 B0Ib 184 0
182 * 15 Sgr s*b 18 15 12.9063291264 -20 43 41.767600368 4.64 5.42 5.37 5.27 5.19 O9.7Iab 268 0
183 HD 167838 V* 18 17 37.7108042088 -15 25 50.562693948 6.83 7.19 6.73 7.60   B3Ia/ab 104 0
184 HD 169454 s*b 18 25 15.1937863728 -13 58 42.309359544 7.39 7.61 6.71 5.82 5.13 B1Ia+ 359 1
185 HD 170475 * 18 30 22.1690617296 -19 21 59.855465376   9.18 9.02     B8III/IV 19 0
186 HD 170682 Be* 18 31 24.2109018096 -19 09 31.025696112 8.06 8.20 7.95     B5III 63 0
187 HD 170719 * 18 31 37.5565765440 -19 05 18.934840788 8.18 8.34 8.12     B6III 38 0
188 IC 4725 OpC 18 31 47.5 -19 07 37           ~ 239 0
189 HD 170836 Ro* 18 32 12.2960813736 -19 16 32.636206308 9.03 9.26 8.95     B8II 50 0
190 HD 171301 * 18 32 49.9577254800 +30 33 15.151676292 4.93 5.381 5.468     B8V 64 0
191 HD 171012 s*b 18 33 10.0974482736 -18 22 06.189324240 6.90 7.49 6.99 6.58 6.18 B0.2Ia 76 0
192 * alf Lyr dS* 18 36 56.33635 +38 47 01.2802 0.03 0.03 0.03 0.07 0.10 A0V 2787 1
193 HD 175156 * 18 54 43.1136473552 -15 36 10.932683925   5.208 5.086     B3II 136 0
194 * sig Sgr ** 18 55 15.92650 -26 17 48.2068 1.06 1.923 2.067     B2.5V 284 1
195 HD 176502 Pu* 18 58 46.5878648352 +40 40 45.088297752 5.39 6.037 6.192     B3V 79 0
196 * gam Lyr * 18 58 56.6225626515 +32 41 22.400666366 3.140 3.200 3.250 3.27 3.28 B9.5II-III 296 0
197 HD 178065 SB* 19 07 09.0293341368 +00 38 27.491355672 6.31 6.584 6.538     B9III 103 0
198 HD 178849 * 19 08 45.1963846656 +34 45 37.084339152   6.916 7.053     B3V 41 0
199 * 21 Aql a2* 19 13 42.7011956712 +02 17 37.310297604 4.67 5.08 5.15     B8III 243 0
200 * 1 Vul SB* 19 16 13.0391965104 +21 23 25.544515308 4.18 4.72 4.77 4.76 4.83 B4IV 130 0
201 * d Aql * 19 20 35.6863700904 -00 53 31.774520544 5.22 5.408 5.451     B9.5III 58 0
202 * 3 Vul Pu* 19 22 50.8855509384 +26 15 44.667340056 4.53 5.065 5.192     B7V 133 0
203 HD 183143 s*b 19 27 26.5636061496 +18 17 45.193019136 8.25 8.08 6.86 5.74 4.79 B7Ia+ 464 0
204 HD 184943 s*b 19 35 56.1285772200 +23 51 23.096582532 8.94 9.02 8.29 7.65 7.10 B8.5Iab 42 0
205 * iot Aql * 19 36 43.2777028800 -01 17 11.758614396 3.84 4.28 4.36 4.34 4.42 B5III 180 0
206 * kap Aql * 19 36 53.4488871022 -07 01 38.924816492 4.050 4.930 4.960 4.90 4.94 B0.5IIIn 354 0
207 * del Cyg PM* 19 44 58.4769226339 +45 07 50.932673095 2.75 2.85 2.87 2.88 2.90 B9.5IV 303 0
208 HD 190066 s*b 20 02 22.1030449008 +22 09 05.249915568 6.07 6.78 6.60 6.43 6.36 B0.7Ib 87 0
209 HD 190603 s*b 20 04 36.1742825304 +32 13 06.953333016 5.73 6.19 5.65 5.13 4.71 B1.5Ia+ 357 0
210 HD 190919 * 20 05 56.1608742336 +35 40 19.500552228 6.86 7.54 7.29     B0.7II 94 0
211 NGC 6871 OpC 20 06 07.9 +35 46 45   5.43 5.2     ~ 237 0
212 HD 191243 s*b 20 07 41.4408550416 +34 25 22.464338340 6.09 6.248 6.141     B5II 93 0
213 HD 191612 SB* 20 09 28.6105997664 +35 44 01.286453904 7.40 8.07 7.80     O8fpe 250 0
214 HD 191746 Pu* 20 10 31.8222281640 +28 26 03.381187056 6.51 7.168 7.189     B2IV 44 0
215 HD 192422 s*b 20 13 22.4819705328 +38 45 55.513574424 7.13 7.61 7.10 6.62 6.25 B0.5Ib 95 0
216 HD 193007 * 20 16 31.3886986440 +37 38 31.219483236 7.95 8.40 7.95     B0.5II 60 0
217 IC 4996 OpC 20 16 32.7 +37 38 46           ~ 187 0
218 HD 193076 * 20 16 58.8836596416 +37 40 53.103033732 7.38 7.88 7.65     B0.7II 61 0
219 HD 193183 s*b 20 17 22.7627493456 +38 14 08.422560204   7.386 7.021     B1.5Ib 77 0
220 HD 194057 Em* 20 21 40.3238926920 +44 48 51.235589772 8.21 8.20 7.52     B1Ib 52 0
221 HD 194279 s*b 20 23 18.1647782064 +40 45 32.598481500 8.01 8.04 7.01 5.98 5.17 B2Ia 200 0
222 HD 194779 Em* 20 25 55.0769169552 +41 20 11.723232408 7.48 7.98 7.80     B3II 50 0
223 HD 194839 s*b 20 26 21.5475791160 +41 22 45.646427280 8.40 8.49 7.49     B0.5Ia 120 0
224 NAME Cyg Complex reg 20 32 +45.0           ~ 667 0
225 * alf Del ** 20 39 38.2796355689 +15 54 43.776032197 3.550 3.740 3.800 3.77 3.81 B9IV 289 0
226 * alf Cyg sg* 20 41 25.91514 +45 16 49.2197 1.11 1.34 1.25 1.14 1.04 A2Ia 778 0
227 * lam Cyg ** 20 47 24.53766 +36 29 26.5737 3.93 4.43 4.54 4.58 4.69 B5V 312 0
228 * 55 Cyg s*b 20 48 56.2915921440 +46 06 50.883645024 4.83 5.28 4.86 4.41 4.10 B2.5Ia 506 0
229 HD 199216 * 20 53 52.4036563032 +49 32 00.325435776 7.05 7.51 7.03     B1II 93 0
230 HD 199478 s*b 20 55 49.8039729168 +47 25 03.564093468 5.79 6.12 5.64 5.16 4.78 B7Ia 231 0
231 HD 201795 * 21 10 38.5495121016 +38 57 40.324573944 6.61 7.50 7.53     B0.7V 44 0
232 * sig Cyg s*b 21 17 24.9522700076 +39 23 40.847039148 3.98 4.37 4.24 4.06 3.92 B9Iab 272 0
233 * 69 Cyg s*b 21 25 47.0250895464 +36 40 02.584183260 4.89 5.86 5.94     B0.2Iab 207 0
234 HD 205196 s*b 21 31 38.4074213784 +57 30 09.325268748 7.57 7.918 7.427     B0Ib 74 0
235 * 9 Cep s*b 21 37 55.2241394424 +62 04 54.990376788 4.49 5.03 4.73 4.42 4.24 B2Ib 315 0
236 HD 206813 * 21 44 46.2187591920 -07 02 25.836302220   10.31 9.97     A5/7II 9 0
237 * pi.02 Cyg SB* 21 46 47.6097792927 +49 18 34.454260528 3.4 4.11 4.18     B2.5III 180 0
238 HD 207538 * 21 47 39.7896725544 +59 42 01.348647696 7 7.55 7.30     O9.7IV 213 1
239 * 13 Cep s*b 21 54 53.1538880928 +56 36 40.415024952 6.50 6.52 5.80 5.12 4.52 B7Iab 195 0
240 HD 208947 SB* 21 57 11.1009923376 +66 09 22.155335100 5.65 6.337 6.394     B2V 102 0
241 * 35 Aqr * 22 08 58.9903231176 -18 31 10.536229236   5.629 5.793     B2III 94 0
242 * 30 Peg V* 22 20 27.5725870760 +05 47 22.209463367 4.880 5.340 5.370     B5III 100 0
243 * 32 Peg ** 22 21 19.3389504648 +28 19 49.906861392 4.62 4.81 4.81 4.72 4.73 B9III 104 0
244 V* RW Cep s*r 22 23 07.0152061200 +55 57 47.624368284 11.25 8.87 6.65 4.94 3.78 K2_0-Ia 181 0
245 * 4 Lac s*b 22 24 30.9914928480 +49 28 35.010584652 4.33 4.67 4.58 4.45 4.35 B9Iab-Ib 188 0
246 * 26 Cep s*b 22 27 05.3104700184 +65 07 56.160347196 5.24 5.806 5.515     B0.5Ib 157 0
247 * 42 Peg PM* 22 41 27.7207176 +10 49 52.907917 3.10 3.33 3.41 3.43 3.50 B8.5IV 320 0
248 * 12 Lac bC* 22 41 28.6495065456 +40 13 31.609736580 4.24 5.080 5.229     B1.5III 369 0
249 HD 215191 * 22 42 55.4466891648 +37 48 09.840220380 5.53 6.290 6.421     B1.5V 93 0
250 * 14 Lac EB* 22 50 21.7785565224 +41 57 12.221400240 5.49 5.961 5.910     B4III 155 0
251 HD 216411 s*b 22 51 33.7733926512 +59 00 30.758302800 7.38 7.81 7.20     B0.7Ia 114 0
252 HD 217490 * 23 00 09.0451083545 +59 37 11.600239596 9.26 9.639 9.213 8.881   B0II 51 0
253 * 1 Cas * 23 06 36.8177774777 +59 25 11.135356051 3.93 4.771 4.840     B0.5III 254 0
254 * iot And Pu* 23 38 08.2003054524 +43 16 05.062997840 3.90 4.18 4.29 4.29 4.38 B8V 169 0
255 * ome02 Aqr PM* 23 42 43.3453038933 -14 32 41.659905000   4.448 4.484     B9.5V 152 0
256 HD 223960 s*b 23 53 49.9830046536 +60 51 12.243820356 7.56 7.61 6.90     B9Ia 98 0
257 HD 224112 * 23 55 16.6896570888 -31 53 03.373074852   6.734 6.816     B8V 63 0

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