2014A&A...566A.132S

Query : 2014A&A...566A.132S

2014A&A...566A.132S - Astronomy and Astrophysics, volume 566A, 132-132 (2014/6-1)

Accurate age determinations of several nearby open clusters containing magnetic Ap stars.

SILAJ J. and LANDSTREET J.D.

Abstract (from CDS):

To study the time evolution of magnetic fields, chemical abundance peculiarities, and other characteristics of magnetic Ap and Bp stars during their main sequence lives, a sample of these stars in open clusters has been obtained, as such stars can be assumed to have the same ages as the clusters to which they belong. However, in exploring age determinations in the literature, we find a large dispersion among different age determinations, even for bright, nearby clusters. Our aim is to obtain ages that are as accurate as possible for the seven nearby open clusters α Per, Coma Ber, IC 2602, NGC 2232, NGC 2451A, NGC 2516, and NGC 6475, each of which contains at least one magnetic Ap or Bp star. Simultaneously, we test the current calibrations of Te and luminosity for the Ap/Bp star members, and identify clearly blue stragglers in the clusters studied. We explore the possibility that isochrone fitting in the theoretical Hertzsprung-Russell diagram (i.e. log(L/L☉) vs. logTe), rather than in the conventional colour-magnitude diagram, can provide more precise and accurate cluster ages, with well-defined uncertainties. Well-defined ages are found for all the clusters studied. For the nearby clusters studied, the derived ages are not very sensitive to the small uncertainties in distance, reddening, membership, metallicity, or choice of isochrones. Our age determinations are all within the range of previously determined values, but the associated uncertainties are considerably smaller than the spread in recent age determinations from the literature. Furthermore, examination of proper motions and HR diagrams confirms that the Ap stars identified in these clusters are members, and that the presently accepted temperature scale and bolometric corrections for Ap stars are approximately correct. We show that in these theoretical HR diagrams blue stragglers are particularly easy to identify. Constructing the theoretical HR diagram of a nearby open cluster makes possible an accurate age determination, with well defined uncertainty. This diagnostic of a cluster also provides a useful tool for studying unusual stars such as Ap stars and blue stragglers.

Abstract Copyright: ∼

Journal keyword(s): stars: chemically peculiar - Hertzsprung-Russell and C-M diagrams - open clusters and associations: general - stragglers blue

VizieR on-line data: <Available at CDS (J/A+A/566/A132): clusters.dat table3.dat>

Simbad objects: 254

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Number of rows : 254
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 HIP 14697 * 03 09 52.0795481112 +48 28 15.421724112   11.59 10.98     G3V 30 0
2 BD+49 868 * 03 11 49.9911787752 +50 22 46.759558728   10.17 9.69     F5V 61 0
3 HD 19767 * 03 12 42.6541851216 +47 50 18.969198108   9.31 9.01     F0Vn 53 0
4 HD 19805 * 03 13 05.2560841728 +49 00 33.855831288   8.07 7.96     B9.5V 90 0
5 HD 19893 * 03 13 50.3335382568 +49 34 07.963078584   7.183 7.155     B9V 53 0
6 BD+48 871 * 03 15 23.5628618954 +49 26 25.015737214   10.56 10.04     F7V 46 0
7 HD 20191 * 03 16 49.0957023216 +51 13 05.474595684   7.22 7.19     B9 34 0
8 BD+49 897 * 03 18 05.2646061060 +49 54 21.820615047   10.43 9.98     F6V 53 0
9 HD 20344 * 03 18 23.9084603568 +50 33 20.531469456   8.20 8.02     A0 33 0
10 * 29 Per Pu* 03 18 37.7416927200 +50 13 19.834697676 6.232 5.074 5.157     B3V 157 0
11 HD 20391 * 03 18 44.7700654320 +49 46 11.836243992   8.06 7.95     A2V 69 0
12 * 31 Per Pu* 03 19 07.6392847536 +50 05 41.889763428 4.44 4.962 5.032     B5V 134 0
13 HD 20475 * 03 19 41.7503118624 +48 54 49.096633968   9.74 9.38 9.30   F2V 51 0
14 HD 20487 SB* 03 19 47.2567107576 +48 37 40.513080216   7.72 7.66     A0Vn 57 0
15 HD 20510 * 03 20 06.2633961456 +50 58 07.540036500 8.786 7.11 7.06     B9V 41 0
16 HD 20537 * 03 20 23.6671077888 +51 37 06.092481576   7.30 7.29     B9 39 0
17 BD+47 808 * 03 21 30.2356009776 +48 29 37.884541488   9.50 9.12     F1IVn 49 0
18 HD 20809 * 03 23 13.1970566400 +49 12 47.774817972   5.23 5.30     B5V 140 0
19 HD 20863 * 03 23 47.3303869752 +48 36 15.892890228   7.00 6.99     B9V 62 0
20 * alf Per V* 03 24 19.3700924 +49 51 40.245455 2.64 2.27 1.79     F5Ib 833 1
21 HD 20931 * 03 24 30.0367682496 +49 08 23.654318676   7.95 7.88     A1V 66 0
22 BD+47 816 * 03 24 47.0905858896 +48 24 41.985492660   10.40 9.94     F4V 52 0
23 BD+46 745 * 03 24 55.1188078242 +47 24 54.066628987   10.15 9.77     F4V 52 0
24 HD 21071 Pu* 03 25 57.3820460520 +49 07 14.729885580 5.53 6.02 6.09     B7V 168 0
25 HD 21091 * 03 26 10.8542585328 +48 23 02.552907516   7.54 7.50     B9.5V 79 0
26 Cl Melotte 20 OpC 03 26 28.1 +48 58 30           ~ 861 0
27 HD 21117 * 03 26 39.4504127688 +50 50 47.405546016 7.700 7.720 7.630     B8 36 0
28 HD 21181 * 03 27 05.1680623464 +48 12 19.828626120   6.817 6.842     B8.5Vn 76 0
29 HD 21238 * 03 27 38.9699168352 +49 35 59.707899024   6.90 6.93     B9V 39 0
30 HD 21279 SB* 03 27 55.7799652296 +47 44 09.350746332   7.29 7.25     B8.5V 63 0
31 HD 21278 SB* 03 28 03.0707602272 +49 03 46.325803896   4.89 4.97     B5V 209 0
32 HD 21362 * 03 28 52.3279117200 +49 50 54.188026800   5.513 5.572     B6Vn 124 0
33 HD 21527 * 03 30 19.3259640120 +48 29 57.595018020   9.08 8.89     A7IV 58 0
34 HD 21551 Pu* 03 30 36.9521337744 +48 06 12.973490460 5.46 5.78 5.82     B8V 128 0
35 HD 21600 * 03 31 14.6807619624 +49 42 22.469651064   8.79 8.64     A6Vn 54 0
36 HD 21619 * 03 31 30.1844557872 +49 54 07.487261172   9.03 8.80     A6V 62 0
37 HD 21641 Be* 03 31 33.1364138952 +47 51 44.700443460 6.47 6.733 6.763     B8.5V 104 0
38 BD+49 958 Pu* 03 31 58.7245723272 +49 52 12.597869892   9.58 9.25     F1V 59 0
39 HD 21699 Pu* 03 32 08.6084197968 +48 01 24.528548676 4.81 5.355 5.461     B9III 208 0
40 HD 21855 * 03 33 22.2528571080 +47 25 19.375677660   8.36 8.22     A0 39 0
41 BD+49 967 Pe* 03 33 54.3645153816 +50 17 47.947459164   9.87 9.53     kA2hA8mA8Sr 48 0
42 HD 22136 V* 03 35 58.4902578816 +47 05 27.699737244   6.842 6.873     B8V 98 0
43 * psi Per Be* 03 36 29.3797327450 +48 11 33.484405927 3.60 4.17 4.23     B5Ve 415 0
44 BD+49 976 SB* 03 37 13.9689417816 +49 33 27.149738544   10.54 10.12     F6IV-V 20 0
45 HD 22401 * 03 38 15.5822862528 +47 34 37.125835932   7.47 7.46     A0V 96 0
46 HD 22440 * 03 38 35.1030753432 +48 35 36.566853324   8.86 8.63     A2 35 0
47 * del Per Be* 03 42 55.4928046977 +47 47 14.988257477 2.38 2.89 3.01 2.99 3.10 B5III 319 0
48 Cl Melotte 22 OpC 03 46 24.2 +24 06 50           ~ 3435 0
49 HD 44720 * 06 23 06.1112176752 -03 30 56.795889060   7.072 7.188     B5V 23 0
50 HD 45051 ** 06 25 05.504 -04 26 09.01   9.44 9.31 9.46   F0/2V 6 0
51 HD 45238 * 06 26 07.9909132584 -04 37 41.640040668   8.37 8.44     B9V 21 0
52 HD 45321 * 06 26 34.4437338912 -04 35 50.630803548   5.989 6.133     B5V 72 0
53 HD 45399 * 06 26 58.4797149816 -04 37 30.198608328   8.45 8.51     B9V 22 0
54 * 9 Mon * 06 27 00.8781808536 -04 21 20.326948884   6.340 6.472     B4V 40 0
55 HD 45435 * 06 27 10.5488492280 -04 46 48.311635440   9.32 9.25     A2V 18 0
56 NGC 2232 OpC 06 27 33.1 -04 44 56           ~ 185 0
57 HD 45516 * 06 27 47.6163029448 -04 49 28.967702592   7.75 7.79     B8V 31 0
58 HD 45532 * 06 27 50.8410418224 -05 09 17.481206052   8.02 8.09     B8/9(V) 24 0
59 NGC 2232 40 Y*? 06 27 57.3236919178 -04 42 43.991942540   11.15 10.72     ~ 18 0
60 * 10 Mon bC* 06 27 57.5680324346 -04 45 43.731399093 4.11 4.861 5.041     B2V 136 0
61 HD 295102 Y*? 06 27 59.0025041496 -04 47 45.391933140   8.71 8.71     A0 23 0
62 V* V682 Mon a2* 06 28 10.7659506576 -04 53 56.511231684   7.85 7.97     ApSi 93 0
63 HD 295100 Y*? 06 28 15.7006354968 -04 36 18.788036148   10.65 10.5     A5 19 0
64 HD 45627 Y*? 06 28 23.0862013992 -05 02 02.316561324   9.03 8.94     A0/1IV/V 23 0
65 HD 46165 * 06 31 36.0922992840 -05 22 07.448881296   7.368 7.438     B8/9III 26 0
66 HD 61621 * 07 38 26.2600279824 -38 42 18.830603880   8.132 8.072     A0V 17 0
67 * d01 Pup * 07 39 27.3386401968 -38 18 28.884430663 3.99 4.65 4.84 4.92 5.08 B3V 101 0
68 * d02 Pup Pu* 07 39 43.8155696712 -38 08 21.473167920   5.62 5.77     B5V 51 0
69 HD 62226 SB* 07 41 15.8125770360 -38 32 00.719252124   5.254 5.393     B3V 60 0
70 HD 62376 * 07 41 58.0231253880 -38 31 42.029908788   6.445 6.523     B8V 48 0
71 HD 62398 * 07 42 25.2022247544 -32 42 44.914359312   9.52 9.12     F3V 5 0
72 HD 62479 * 07 42 29.8350605304 -38 06 28.810322820   9.383 9.084     A7IV 31 0
73 HD 62503 * 07 42 30.6146444256 -39 12 04.561991136   7.202 7.259     B9V 32 0
74 NGC 2451A OpC 07 42 56.6 -38 15 50           ~ 129 0
75 HD 62578 * 07 43 11.9831906160 -36 03 00.323891640   5.450 5.585     B5V 42 0
76 HD 62642 Pu* 07 43 29.4711583728 -37 45 02.030198256   7.850 7.614 7.436 7.589 B9.5V 28 0
77 HD 62712 * 07 43 42.9160399680 -38 12 06.767386272 5.76 6.24 6.40     B8IV 83 0
78 HD 62803 * 07 44 02.4982921080 -38 49 04.628204868   7.350 7.407     B9V 36 0
79 HD 62876 * 07 44 28.0958555856 -37 59 15.806663916   8.698 8.576     A2V 29 0
80 CD-38 3604 * 07 44 28.1021621904 -38 46 41.671872840   9.467 9.199     A5 14 0
81 HD 62893 * 07 44 34.1830281624 -37 56 34.510493904   5.759 5.870     B8V 65 0
82 HD 62961 * 07 44 43.9006501488 -39 01 14.600633808   8.146 8.105     A0V 27 0
83 HD 62974 ** 07 44 59.6805831138 -38 05 39.162239997   8.435 8.302     A3V 29 0
84 CD-37 3859 * 07 45 01.6851326352 -38 02 20.161377996   10.508 10.059 9.817 9.614 ~ 18 0
85 HD 63080 * 07 45 21.5018412816 -39 20 42.724351824   7.172 7.188     A0IV 32 0
86 NGC 2451 Cl* 07 45.4 -37 58           ~ 158 1
87 HD 63079 * 07 45 27.3624173688 -37 35 46.630622868   6.857 6.909     B9V 52 0
88 HD 63215 Be* 07 46 10.5442184088 -37 56 01.239555912   5.755 5.869     B5V 62 0
89 V* OX Pup a2* 07 47 05.7565479792 -39 19 51.585710340   6.171 6.322     ApSi 87 0
90 HD 63465 Pu* 07 47 24.9925592232 -38 30 40.110462576 4.32 4.952 5.068     B2IV/V 70 0
91 HD 63511 * 07 47 39.2167291416 -38 40 36.151016412   8.922 8.778     A2/3IV 23 0
92 HD 64320 * 07 49 54.7652080728 -60 03 05.187529692   7.954 6.716     K0II 32 0
93 HD 64028 * 07 50 26.0014938480 -36 14 30.811535880   7.18 7.26     B8/9V 20 0
94 HD 64507 * 07 50 56.8269334920 -59 38 46.384669860   7.29 7.29     B8/9Ib/II 24 0
95 HD 64831 Be* 07 52 22.2705843576 -59 29 35.202230124   7.92 7.83     B8Vn 24 0
96 HD 65094 * 07 53 29.2418568216 -61 03 16.152455736   7.84 7.81     B8V 26 0
97 CD-60 1906 * 07 54 41.9901053904 -60 57 48.828688164   11.47 10.97 11.05 10.50 ~ 19 0
98 HD 65467 * 07 55 21.3243354888 -60 50 39.963130980   9.53 9.39     A0IV/V 24 0
99 HD 65578 * 07 55 50.6180557320 -61 10 09.108258312   8.20 8.17     B8V 37 0
100 CD-59 1764 EB* 07 56 02.0066657280 -60 15 27.028671084   9.68 9.65     A0.5V 19 0
101 HD 65599 * 07 56 04.8271042680 -60 14 33.712764612   8.87 8.86     B9V 38 0
102 HD 65663 Be* 07 56 15.7697008 -61 05 57.949993 6.54 6.723 6.730     B8V 51 1
103 HD 65662 * 07 56 18.6483286488 -60 31 35.166305856   7.266 5.717     K3+IIIa 57 0
104 HD 65691 * 07 56 20.0746644456 -60 48 03.448724076   8.97 9.01     B8/9V 38 0
105 V* V607 Car a2* 07 56 22.6795854768 -61 17 02.136961464   9.365 9.340     ApSi 46 0
106 CPD-60 944A a2* 07 56 45.1050993480 -60 48 54.285743628   8.345 8.370     B8pSi 49 0
107 CPD-60 944B Pu* 07 56 46.2620797099 -60 48 58.296559706   8.77 8.76     B8III 46 0
108 CD-60 1929 Pu* 07 56 47.1971927808 -60 50 27.055744692 8.34 8.56 8.52     B8.5IV 43 0
109 CD-60 1931 Pu* 07 56 54.6806295288 -60 35 54.497068332 7.72 8.04 8.09     B7 48 0
110 CD-60 1932 * 07 56 59.5709860224 -60 47 01.831267392   9.94 9.93   9.500 A0Vnn 39 0
111 HD 65835 * 07 57 10.9275296904 -60 53 20.189094036   9.66 9.70     B9.5V 35 0
112 CD-60 1936 * 07 57 19.8110014152 -60 48 46.298213784   9.49 9.30     B9V 39 0
113 HD 65869 * 07 57 21.1266315240 -60 46 03.008222832   7.73 7.72     B8/9V 45 0
114 HD 65896 * 07 57 31.7403701472 -60 37 51.247355808   9.40 9.35     A0V 48 0
115 HD 65931 * 07 57 34.7967915336 -61 03 30.669483204   8.91 8.85     B9/A0V 34 0
116 CD-60 1946 SB* 07 57 37.8603841224 -60 54 32.082010704   8.89 8.81     B9V+A4V 44 0
117 HD 65950 V* 07 57 45.2194757688 -60 55 35.265618408 6.56 6.86 6.87     B8III 95 0
118 CD-60 1953 Be* 07 57 45.9261198264 -60 49 34.831188192   9.03 8.98     B9:p_sh_He-n 37 0
119 HD 65949 * 07 57 47.6703410424 -60 36 34.921501344 7.99 8.31 8.37     B8/9 98 0
120 CD-60 1954 Pu* 07 57 49.1756921659 -60 41 01.094971793   8.54 8.50     B9.5V 45 0
121 CD-60 1956 * 07 57 49.4649807267 -60 43 16.570451381   9.765 9.665 9.970   A0.5V 30 0
122 CD-60 1960 EB* 07 57 58.0340402784 -60 50 45.508338024   9.05 8.92     A0V 45 0
123 V* V391 Car a2* 07 58 02.5012020672 -60 48 46.812060396   8.89 8.96     A0pEuCrSr 61 0
124 V* V356 Car SB* 07 58 02.9117451672 -60 36 53.230792248 7.22 7.55 7.59     B9.5IVpSi 97 0
125 NGC 2516 OpC 07 58 06.5 -60 48 00           ~ 713 0
126 CD-60 1964 EB* 07 58 08.0526772176 -60 46 49.994541948   8.43 8.38     B8.5V 33 0
127 CD-60 1965 * 07 58 09.6293826072 -60 49 00.824187504   7.92 6.69     K2II 34 0
128 CD-60 1971 EB* 07 58 13.0116331656 -60 52 26.790779064   8.13 8.12     B8.5V 38 0
129 HD 66066B * 07 58 22.2659936496 -60 51 22.338259740   7.70 7.69     B8 24 0
130 CD-60 1974 * 07 58 24.0920706408 -60 52 30.957681684   9.48 9.44     A1V 33 0
131 CD-60 1975 * 07 58 27.2893208016 -60 48 07.402806936   8.49 8.39     B9V 41 0
132 CD-60 1978 * 07 58 30.7341134692 -60 43 44.632760324 8.55 8.71 8.70     B8.5IV-V 44 0
133 CD-60 1986 * 07 58 38.1487456440 -61 00 48.628912968   9.72 9.57     A2Van 25 0
134 HD 66137 SB* 07 58 43.5816517464 -60 42 05.077676880   7.87 7.84     B9(V) 43 0
135 HD 66194 Be* 07 58 50.5509433080 -60 49 28.060460040 4.92 5.72 5.81 5.77 5.83 B3Vn 140 0
136 HD 66259 * 07 59 14.6921011440 -60 35 13.574694156 8.26 8.36 8.33     B9.5V 56 0
137 V* V422 Car a2* 07 59 21.2942838672 -60 48 56.393118468   9.13 9.08     B8/9pSi 77 0
138 HD 66318 * 07 59 27.4731907320 -60 47 47.144978988   9.69 9.56   9.555 A2:IV:pSiSrCr 95 0
139 V* V460 Car LP* 07 59 37.5423065376 -60 35 13.423848216   6.91 5.18     M1.5IIb 90 0
140 HD 66341 * 07 59 40.0869376656 -60 12 26.462694780 5.84 6.233 6.294     B5III 58 0
141 HD 66409 Ro* 07 59 57.8067802465 -60 44 48.469843598 8.08 8.38 8.37     B8IV/V 56 0
142 CD-60 2017 * 08 00 34.4558383608 -60 42 55.967765400   10.00 9.92     A0V 30 0
143 HD 67170 * 08 03 07.5330759696 -62 07 58.122875784   8.10 8.11     B8III/IV 28 0
144 HD 67277 Ro* 08 03 41.6431002984 -60 54 27.201228984   8.24 8.26     B8III 33 0
145 HD 68372 SB* 08 08 44.4562448136 -60 37 32.926576620   7.28 7.31     B8III 21 0
146 HD 88980 * 10 13 45.9517652016 -63 53 59.709829236   9.04 8.73     A8V 26 0
147 HD 89903 * 10 20 18.8414432928 -66 03 49.019500584   7.59 7.50     A0/1Vn 18 0
148 HD 90731 * 10 26 44.4239816304 -64 21 06.126829848   7.43 7.41     A0V 25 0
149 HD 90837 * 10 27 30.2505358824 -63 31 23.762717940   8.52 8.32     A3IV 24 0
150 HD 91043 * 10 28 43.6989118512 -64 35 39.071458284   9.60 9.18     F3V 24 0
151 * p Car Be* 10 32 01.4650915230 -61 41 07.195030368 2.46 3.18 3.27 3.22 3.28 B4Vne 232 0
152 V* V407 Car a2* 10 38 17.5533646560 -65 02 30.968296872   6.646 6.711     B9Vn 89 0
153 HD 92467A * 10 38 51.3746764495 -64 29 52.801836545   7.15 7.17     ~ 49 0
154 HD 92467 ** 10 38 51.3790597 -64 29 52.853349 6.86         B9.5V 48 0
155 HD 92478 * 10 39 02.4966492552 -64 58 29.841808764   7.62 7.59     A0V 48 0
156 HD 92536 * 10 39 22.8313738440 -64 06 42.438258936 5.95 6.238 6.314     B8V 72 0
157 HD 92535 * 10 39 24.9815405520 -63 46 41.141644932   8.47 8.27     A6V 36 0
158 V* V364 Car a2* 10 40 11.4474547680 -65 06 00.752607072 4.79 5.36 5.52     ApSi 146 0
159 HD 92715 * 10 40 42.1062180072 -64 39 11.462208876   6.772 6.800     B9.5V 49 0
160 HD 92783 * 10 41 06.4151530080 -64 28 27.769312128   6.642 6.689     B9V 69 0
161 HD 92837 * 10 41 35.1354483384 -64 06 23.009947632   7.148 7.163     A0V 55 0
162 HD 92938 Be* 10 42 14.1192723749 -64 27 59.133997516 4.10 4.68 4.82     B3V 121 0
163 HD 92966 * 10 42 25.1567646288 -64 23 55.721600772   7.25 7.25     B9V 45 0
164 IC 2602 OpC 10 42 27.1 -64 25 34           ~ 675 0
165 HD 92928 * 10 42 27.4008075552 -58 39 32.480762724   9.42 8.84     F0Ib/II 13 0
166 HD 92989 * 10 42 38.4130732032 -64 40 40.612543428   7.64 7.58     A0V 37 0
167 * tet Car SB* 10 42 57.4019674 -64 23 40.020796 1.53 2.54 2.76 2.87 3.10 B0Vp 340 0
168 HD 93098 * 10 43 29.4848028216 -64 04 06.512815632   7.64 7.60     A0V 44 0
169 HD 93194 * 10 44 06.9012455223 -63 57 39.869369989 4.03 4.649 4.789     B3/5Vn 89 0
170 HD 93517 * 10 46 09.8943231384 -64 35 44.089335456   7.95 7.86     A1V 39 0
171 HD 93540 Pu* 10 46 16.5473233704 -64 30 52.422448716 4.79 5.24 5.34     B6Vnn 93 0
172 HD 93549 SB* 10 46 29.5881441504 -64 15 47.653678296 4.69 5.136 5.229     B6-7V 87 0
173 HD 93607 * 10 46 51.2189828556 -64 23 00.504549149 4.06 4.69 4.83     B4V 95 0
174 HD 93648 * 10 47 09.1391862120 -64 15 52.852239900   7.97 7.87     A0Vn 26 0
175 HD 93738 ** 10 47 53.5366177728 -64 15 46.204877412   6.442 6.452     B9.5V 51 0
176 HD 93874 * 10 48 41.9556676536 -63 49 58.846928484   8.35 8.19     A3(IV) 38 0
177 HD 94174 * 10 50 46.0221369336 -64 28 46.037836056   7.87 7.78     A0V 49 0
178 HD 95786 * 11 01 54.7207888800 -66 00 44.417137536   7.58 7.52     A0/1V 28 0
179 HD 96287 * 11 04 49.9428886992 -64 36 56.624865552   7.236 7.231     B9.5V 36 0
180 HD 105805 V* 12 10 46.0951571112 +27 16 53.421950208   6.110 5.987     A4Vn 92 0
181 HD 105863 * 12 11 07.3820881128 +25 59 24.629771616   10.18 9.55     F8.2 38 0
182 V* GM Com dS* 12 12 24.8945127048 +27 22 48.353939724   8.44 8.1     F2-3V 117 0
183 HD 106691 * 12 16 08.3755905912 +25 45 37.337623776   8.46 8.08     F5IV 101 0
184 HD 106946 * 12 17 50.9063952576 +25 34 16.838682780   8.19 7.87     F2Vs 100 0
185 HD 107067 SB* 12 18 36.1809470880 +23 07 12.274326840   9.17 8.70     F8 91 0
186 HD 107132 V* 12 19 01.4794667088 +24 50 46.186912968   9.26 8.81     F7Vv 82 0
187 V* FM Com dS* 12 19 02.0250151224 +26 00 30.060577116   6.605 6.433     A6:IV-Vmv 157 0
188 * 8 Com * 12 19 19.1929880208 +23 02 04.821806040   6.416 6.220     A8m 138 0
189 * 10 Com * 12 19 50.6242729536 +28 27 51.675976548   6.812 6.617     Am 119 0
190 HD 107399 * 12 20 45.5706181896 +25 45 57.104302932   9.62 9.00     F8V 108 0
191 V* KU Com dS* 12 21 26.7390932544 +24 59 49.298164296   7.64 7.38     Am 118 0
192 HD 107583 * 12 21 49.0266762216 +26 32 56.750515116   9.89 9.31     G0V 96 0
193 HD 107611 * 12 21 56.1616739640 +27 18 34.236329472   8.95 8.50     F6V 110 0
194 HD 107685 * 12 22 24.7563796200 +22 27 50.908932288   8.98 8.54     F6 88 0
195 * 12 Com SB* 12 22 30.3113907816 +25 50 46.167660348 5.56 5.30 4.81 4.34 4.01 F6III+A3V 188 0
196 HD 107793 SB* 12 23 08.3994739320 +25 51 04.947925896   9.64 9.09     F9V 111 0
197 HD 107877 V* 12 23 41.0100897456 +26 58 47.754411960   8.75 8.35     F6 101 0
198 Cl Melotte 111 OpC 12 24 03.4 +25 39 07           ~ 480 0
199 HD 107935 SB* 12 24 03.4621039848 +25 51 04.359102696   6.917 6.693     Am 88 0
200 V* IL Com RS* 12 25 02.2563809088 +25 33 38.383306020   8.63 8.14     F8 151 0
201 HD 108154 * 12 25 22.4975294904 +23 13 44.725774908   8.99 8.56     F5 90 0
202 HD 108226 V* 12 25 51.9521131776 +26 46 36.015060288   8.76 8.34     F5 101 0
203 * 14 Com * 12 26 24.0644226936 +27 16 05.659806648 5.40 5.22 4.95 4.70 4.55 F1IV:npS_sh 161 0
204 NAME Coma Dwarf Galaxy G 12 26 59.0 +23 54 15     14.1     ~ 452 1
205 * 16 Com * 12 26 59.2962947904 +26 49 32.526134544   5.045 4.959   4.93 A4V 160 0
206 HD 108486 EB* 12 27 38.3636590224 +25 54 43.580490048   6.835 6.654     A1IV-VSrSi 127 0
207 * 17 Com a2* 12 28 54.7022406648 +25 54 46.265813136   5.208 5.236     B9VCrEu 280 0
208 * 21 Com a2* 12 31 00.5605002264 +24 34 01.797245328   5.496 5.436     A2pv 283 0
209 HD 108976 * 12 31 03.0979192032 +27 43 49.221073380   9.03 8.57     F6V 104 0
210 HD 109069 * 12 31 50.5548514464 +29 18 50.908640220   7.86 7.55     F0V 59 0
211 * 22 Com * 12 33 34.2193153104 +24 16 58.739975472   6.363 6.243     A4Vm 155 0
212 HD 109483 * 12 34 54.2985164088 +27 27 20.207769624   9.60 9.0     G4.8 31 0
213 NAME Upper Sco-Cen As* 16 15 -24.2           ~ 1330 1
214 HD 161575 * 17 47 47.5511946360 -34 18 38.451957264   6.94 6.93     B9III(pSi) 37 0
215 HD 161649 * 17 48 11.2561948752 -34 34 55.003044864   7.78 7.79     B8/9Ib/II 22 0
216 HD 161855 * 17 49 29.0976160944 -35 22 41.176830072   7.35 7.35     B9.5V 28 0
217 HD 162144 * 17 51 02.1250944312 -35 04 13.969414956   7.61 7.63     A0III/IV 35 0
218 HD 162205 * 17 51 16.7040973824 -34 49 14.203507728   9.33 9.36     B5III 7 0
219 HD 162223 * 17 51 25.6954385640 -34 33 35.790123924   9.21 8.91     A2III 26 0
220 HD 162224 * 17 51 25.9014964032 -35 02 03.810883524   9.18 9.11     A0IV 20 0
221 HD 162285 * 17 51 50.3135826168 -34 32 53.460753576   8.75 8.71     A2 18 0
222 HD 162305 * 17 51 52.8802756344 -34 46 56.811887580   7.76 7.77     B8/9III/IV 45 0
223 HD 320765 * 17 52 05.2064788728 -34 55 42.347880048   8.80 8.73     A1V 15 0
224 HD 320764 ** 17 52 09.8992540872 -34 53 40.323689880   9.38 9.38 9.55   ~ 38 1
225 HD 162349 * 17 52 10.4411841792 -35 00 06.529597956   8.40 8.35     A0IV/V 14 0
226 V* V957 Sco BS* 17 52 13.6613130072 -34 47 57.109291728 5.16 5.80 5.90     B5IVp 136 0
227 HD 162392 * 17 52 19.6185257376 -34 37 05.118685248   9.02 9.01     A0V 13 0
228 HD 162391 SB* 17 52 19.7613514968 -34 25 00.630446052   6.95 5.85     G8/K0III 47 0
229 HD 162393 * 17 52 20.0207711592 -34 58 27.951145932   8.09 8.06     A0V 25 0
230 HD 162457 * 17 52 40.8797417712 -34 55 45.713277156   8.32 8.29     A9V 29 0
231 HD 162496 * 17 52 49.2230547264 -34 06 53.395481952   7.30 6.06     K1III 28 0
232 HD 162514 * 17 52 54.4615094904 -34 35 28.949082972   9.10 8.87     A7/8V 20 0
233 HD 162515 SB* 17 52 55.7709053280 -35 01 08.012539056   6.57 6.57     B9III 75 0
234 V* V958 Sco a2* 17 53 15.9791676888 -34 37 15.060028836   7.01 6.99     B8/9III 79 0
235 HD 162586 ** 17 53 19.58018 -34 43 50.9011   6.07 6.12     B3/5III 69 0
236 V* V959 Sco a2* 17 53 23.4267824736 -35 01 01.013132676   7.21 7.22     ApSi 63 0
237 HD 162587 ** 17 53 23.47133 -34 53 42.4372           K3III 51 0
238 V* V1091 Sco a2* 17 53 29.9974736448 -36 30 30.809865420   7.99 8.00     ApSi 34 0
239 HD 162679 SB* 17 53 44.1375776664 -34 47 39.825723444   8.76 8.88 8.37   B9/A0(V) 59 0
240 HD 162678 * 17 53 45.5007392112 -34 47 09.707011908   6.38 6.38     B9/A0II/III 48 0
241 NGC 6475 OpC 17 53 47.3 -34 50 28           ~ 384 0
242 V* V906 Sco EB* 17 53 54.7731227 -34 45 09.785378   5.95 5.96     B9V+B9V 122 0
243 V* V951 Sco a2* 17 53 58.1358478008 -34 49 51.800052684   6.43 6.42     kB6hA0VHeA0pSiCr 102 0
244 HD 162781 * 17 54 13.0006902336 -34 49 24.460574232   7.59 7.50     A0IV 35 0
245 HD 162780 SB* 17 54 14.3800584792 -34 43 39.531808668   6.94 6.91     A0(IV) 67 0
246 HD 162804 * 17 54 22.0846696176 -34 52 42.379719384   7.04 7.06     B9III/IV 38 0
247 HD 162817 * 17 54 27.1232887320 -34 28 00.204740616   6.15 6.11     B9.5/A0III 77 0
248 HD 162874 * 17 54 38.2624134912 -33 57 22.741077672   7.84 7.80     B9.5V 35 0
249 HD 162888 Be* 17 54 47.8841794680 -34 32 31.801946712   6.99 6.98     A0IIIe 56 0
250 HD 162926 * 17 55 08.0316869184 -36 28 32.320078824   6.113 6.053     B9.5III 28 0
251 HD 163109 * 17 55 56.1879202704 -34 17 11.854990428   8.02 8.01     B9IV 39 0
252 HD 163139 * 17 56 07.8774555672 -35 02 56.052945780   6.75 6.73     B9.5III 26 0
253 HD 163251 * 17 56 46.3579283952 -35 12 05.311045620   7.71 7.74     B7II/III 18 0
254 HD 164108 * 18 01 11.8677749208 -35 19 44.807115468   8.86 8.75     A0V 24 0

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