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

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

2014A&A...566A.132S - Astronomy and Astrophysics, volume 566A132-132 (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 - 2026 		#notes
1 HIP 14697 * 03 09 52.0795481112 +48 28 15.421724112   11.59 10.98     G3V 33 0
2 BD+49 868 * 03 11 49.9911787752 +50 22 46.759558728   10.17 9.69     F5V 70 0
3 HD 19767 * 03 12 42.6541851216 +47 50 18.969198108   9.31 9.01     F0Vn 59 0
4 HD 19805 * 03 13 05.2560841728 +49 00 33.855831288   8.07 7.96     B9.5V 101 0
5 HD 19893 * 03 13 50.3335382568 +49 34 07.963078584   7.183 7.155     B9V 63 0
6 BD+48 871 * 03 15 23.5628618954 +49 26 25.015737214   10.56 10.04     F7V 51 0
7 HD 20191 * 03 16 49.0957023216 +51 13 05.474595684   7.22 7.19     B9 41 0
8 BD+49 897 * 03 18 05.2646061060 +49 54 21.820615047   10.43 9.98     F6V 63 0
9 HD 20344 * 03 18 23.9084603568 +50 33 20.531469456   8.20 8.02     A0 38 0
10 * 29 Per Pu* 03 18 37.7416927200 +50 13 19.834697676 6.232 5.074 5.157     B3V 167 0
11 HD 20391 * 03 18 44.7700654320 +49 46 11.836243992   8.06 7.95     A2V 78 0
12 * 31 Per Pu* 03 19 07.6392847536 +50 05 41.889763428 4.44 4.962 5.032     B5V 146 0
13 HD 20475 * 03 19 41.7503118624 +48 54 49.096633968   9.74 9.38 9.30   F2V 56 0
14 HD 20487 SB* 03 19 47.2567107576 +48 37 40.513080216   7.72 7.66     A0Vn 66 0
15 HD 20510 * 03 20 06.2633961456 +50 58 07.540036500 8.786 7.11 7.06     B9V 48 0
16 HD 20537 * 03 20 23.6671077888 +51 37 06.092481576   7.30 7.29     B9 48 0
17 BD+47 808 Em* 03 21 30.2356009776 +48 29 37.884541488   9.50 9.12     F1IVn 60 0
18 HD 20809 * 03 23 13.1970566400 +49 12 47.774817972   5.23 5.30     B5V 150 0
19 HD 20863 * 03 23 47.3303869752 +48 36 15.892890228   7.00 6.99     B9V 73 0
20 * alf Per V* 03 24 19.3700924 +49 51 40.245455 2.64 2.27 1.79     F5Ib 870 1
21 HD 20931 * 03 24 30.0367682496 +49 08 23.654318676   7.95 7.88     A1V 76 0
22 BD+47 816 * 03 24 47.0905858896 +48 24 41.985492660   10.40 9.94     F4V 62 0
23 BD+46 745 * 03 24 55.1188078242 +47 24 54.066628987   10.15 9.77     F4V 60 0
24 HD 21071 Pu* 03 25 57.3820460520 +49 07 14.729885580 5.53 6.02 6.09     B7V 180 0
25 HD 21091 * 03 26 10.8542585328 +48 23 02.552907516   7.54 7.50     B9.5V 89 0
26 HD 21117 * 03 26 39.4504127688 +50 50 47.405546016 7.700 7.720 7.630     B8 42 0
27 Cl Melotte 20 MGr 03 26 50.6 +48 51 48           ~ 928 0
28 HD 21181 * 03 27 05.1680623464 +48 12 19.828626120   6.817 6.842     B8.5Vn 87 0
29 HD 21238 * 03 27 38.9699168352 +49 35 59.707899024   6.90 6.93     B9V 48 0
30 HD 21279 SB* 03 27 55.7799652296 +47 44 09.350746332   7.29 7.25     B8.5V 76 0
31 HD 21278 SB* 03 28 03.0707602272 +49 03 46.325803896   4.89 4.97     B5V 220 0
32 HD 21362 * 03 28 52.3279117200 +49 50 54.188026800   5.513 5.572     B6Vn 131 0
33 HD 21527 * 03 30 19.3259640120 +48 29 57.595018020   9.08 8.89     A7IV 64 0
34 HD 21551 Pu* 03 30 36.9521337744 +48 06 12.973490460 5.46 5.78 5.82     B8V 138 0
35 HD 21600 * 03 31 14.6807619624 +49 42 22.469651064   8.79 8.64     A6Vn 62 0
36 HD 21619 * 03 31 30.1844557872 +49 54 07.487261172   9.03 8.80     A6V 70 0
37 HD 21641 Be* 03 31 33.1364138952 +47 51 44.700443460 6.47 6.733 6.763     B8.5V 115 0
38 BD+49 958 Pu* 03 31 58.7245723272 +49 52 12.597869892   9.58 9.25     F1V 71 0
39 HD 21699 Pu* 03 32 08.6084197968 +48 01 24.528548676 4.81 5.355 5.461     B9III 220 0
40 HD 21855 * 03 33 22.2528571080 +47 25 19.375677660   8.36 8.22     A0 47 0
41 BD+49 967 Pe* 03 33 54.3645153816 +50 17 47.947459164   9.87 9.53     kA2hA8mA8Sr 56 0
42 HD 22136 V* 03 35 58.4902578816 +47 05 27.699737244   6.842 6.873     B8V 108 0
43 * psi Per Be* 03 36 29.3797327450 +48 11 33.484405927 3.60 4.17 4.23     B5Ve 431 0
44 BD+49 976 SB* 03 37 13.9689417816 +49 33 27.149738544   10.54 10.12     F6IV-V 22 0
45 HD 22401 * 03 38 15.5822862528 +47 34 37.125835932   7.47 7.46     A0V 104 0
46 HD 22440 * 03 38 35.1030753432 +48 35 36.566853324   8.86 8.63     A2 41 0
47 * del Per Be* 03 42 55.4928046977 +47 47 14.988257477 2.38 2.89 3.01 2.99 3.10 B5III 328 0
48 Cl Melotte 22 OpC 03 46 38.0 +24 10 41           ~ 3679 0
49 HD 44720 * 06 23 06.1112176752 -03 30 56.795889060   7.072 7.188     B5V 28 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 26 0
52 HD 45321 * 06 26 34.4437338912 -04 35 50.630803548   5.989 6.133     B5V 80 0
53 HD 45399 * 06 26 58.4797149816 -04 37 30.198608328   8.45 8.51     B9V 27 0
54 * 9 Mon * 06 27 00.8781808536 -04 21 20.326948884   6.340 6.472     B4V 47 0
55 HD 45435 * 06 27 10.5488492280 -04 46 48.311635440   9.32 9.25     A2V 21 0
56 NGC 2232 OpC 06 27 45.6 -04 44 26           ~ 212 0
57 HD 45516 * 06 27 47.6163029448 -04 49 28.967702592   7.75 7.79     B8V 37 0
58 HD 45532 * 06 27 50.8410418224 -05 09 17.481206052   8.02 8.09     B8/9(V) 27 0
59 NGC 2232 40 Y*? 06 27 57.3236919178 -04 42 43.991942540   11.15 10.72     ~ 22 0
60 * 10 Mon bC* 06 27 57.5680324346 -04 45 43.731399093 4.11 4.861 5.041     B2V 140 0
61 HD 295102 Y*? 06 27 59.0025041496 -04 47 45.391933140   8.71 8.71     A0 28 0
62 V* V682 Mon a2* 06 28 10.7659506576 -04 53 56.511231684   7.85 7.97     ApSi 100 0
63 HD 295100 Y*? 06 28 15.7006354968 -04 36 18.788036148   10.65 10.5     A5 23 0
64 HD 45627 Y*? 06 28 23.0862013992 -05 02 02.316561324   9.03 8.94     A0/1IV/V 28 0
65 HD 46165 * 06 31 36.0922992840 -05 22 07.448881296   7.368 7.438     B8/9III 31 0
66 HD 61621 * 07 38 26.2600279824 -38 42 18.830603880   8.132 8.072     A0V 20 0
67 * d01 Pup * 07 39 27.3386401968 -38 18 28.884430663 3.99 4.65 4.84 4.92 5.08 B3V 105 0
68 * d02 Pup Pu* 07 39 43.8155696712 -38 08 21.473167920   5.62 5.77     B5V 53 0
69 HD 62226 SB* 07 41 15.8125770360 -38 32 00.719252124   5.254 5.393     B3V 66 0
70 HD 62376 * 07 41 58.0231253880 -38 31 42.029908788   6.445 6.523     B8V 51 0
71 HD 62398 * 07 42 25.2022247544 -32 42 44.914359312   9.52 9.12     F3V 6 0
72 HD 62479 * 07 42 29.8350605304 -38 06 28.810322820   9.383 9.084     A7IV 34 0
73 HD 62503 * 07 42 30.6146444256 -39 12 04.561991136   7.202 7.259     B9V 35 0
74 NGC 2451A OpC 07 42 55.4 -38 15 05           ~ 159 0
75 HD 62578 * 07 43 11.9831906160 -36 03 00.323891640   5.450 5.585     B5V 48 0
76 HD 62642 Pu* 07 43 29.4711583728 -37 45 02.030198256   7.850 7.614 7.436 7.589 B9.5V 29 0
77 HD 62712 * 07 43 42.9160399680 -38 12 06.767386272 5.76 6.24 6.40     B8IV 87 0
78 HD 62803 * 07 44 02.4982921080 -38 49 04.628204868   7.350 7.407     B9V 41 0
79 HD 62876 * 07 44 28.0958555856 -37 59 15.806663916   8.698 8.576     A2V 33 0
80 CD-38 3604 * 07 44 28.1021621904 -38 46 41.671872840   9.467 9.199     A5 17 0
81 HD 62893 * 07 44 34.1830281624 -37 56 34.510493904   5.759 5.870     B8V 69 0
82 HD 62961 * 07 44 43.9006501488 -39 01 14.600633808   8.146 8.105     A0V 31 0
83 HD 62974 ** 07 44 59.6805831138 -38 05 39.162239997   8.435 8.302     A3V 34 0
84 CD-37 3859 * 07 45 01.6851326352 -38 02 20.161377996   10.508 10.059 9.817 9.614 ~ 21 0
85 HD 63080 * 07 45 21.5018412816 -39 20 42.724351824   7.172 7.188     A0IV 36 0
86 NGC 2451 Cl* 07 45.4 -37 58           ~ 165 1
87 HD 63079 * 07 45 27.3624173688 -37 35 46.630622868   6.857 6.909     B9V 56 0
88 HD 63215 Be* 07 46 10.5442184088 -37 56 01.239555912   5.755 5.869     B5V 66 0
89 V* OX Pup a2* 07 47 05.7565479792 -39 19 51.585710340   6.171 6.322     ApSi 93 0
90 HD 63465 Pu* 07 47 24.9925592232 -38 30 40.110462576 4.32 4.952 5.068     B2IV/V 77 0
91 HD 63511 * 07 47 39.2167291416 -38 40 36.151016412   8.922 8.778     A2/3IV 28 0
92 HD 64320 * 07 49 54.7652080728 -60 03 05.187529692   7.954 6.716     K0II 41 0
93 HD 64028 * 07 50 26.0014938480 -36 14 30.811535880   7.18 7.26     B8/9V 25 0
94 HD 64507 * 07 50 56.8269334920 -59 38 46.384669860   7.29 7.29     B8/9Ib/II 31 0
95 HD 64831 Be* 07 52 22.2705843576 -59 29 35.202230124   7.92 7.83     B8Vn 32 0
96 HD 65094 * 07 53 29.2418568216 -61 03 16.152455736   7.84 7.81     B8V 32 0
97 CD-60 1906 * 07 54 41.9901053904 -60 57 48.828688164   11.47 10.97 11.05 10.50 ~ 23 0
98 HD 65467 * 07 55 21.3243354888 -60 50 39.963130980   9.53 9.39     A0IV/V 30 0
99 HD 65578 * 07 55 50.6180557320 -61 10 09.108258312   8.20 8.17     B8V 43 0
100 CD-59 1764 EB* 07 56 02.0066657280 -60 15 27.028671084   9.68 9.65     A0.5V 25 0
101 HD 65599 * 07 56 04.8271042680 -60 14 33.712764612   8.87 8.86     B9V 44 0
102 HD 65663 Be* 07 56 15.7697008 -61 05 57.949993 6.54 6.723 6.730     B8V 55 1
103 HD 65662 * 07 56 18.6483286488 -60 31 35.166305856   7.266 5.717     K3+IIIa 67 0
104 HD 65691 * 07 56 20.0746644456 -60 48 03.448724076   8.97 9.01     B8/9V 46 0
105 V* V607 Car a2* 07 56 22.6795854768 -61 17 02.136961464   9.365 9.340     ApSi 54 0
106 CPD-60 944A a2* 07 56 45.1050993480 -60 48 54.285743628   8.345 8.370     B8pSi 56 0
107 CPD-60 944B Pu* 07 56 46.2620797099 -60 48 58.296559706   8.77 8.76     B8III 53 0
108 CD-60 1929 Pu* 07 56 47.1971927808 -60 50 27.055744692 8.34 8.56 8.52     B8.5IV 52 0
109 CD-60 1931 Pu* 07 56 54.6806295288 -60 35 54.497068332 7.72 8.04 8.09     B7 58 0
110 CD-60 1932 * 07 56 59.5709860224 -60 47 01.831267392   9.94 9.93   9.500 A0Vnn 47 0
111 HD 65835 * 07 57 10.9275296904 -60 53 20.189094036   9.66 9.70     B9.5V 43 0
112 CD-60 1936 * 07 57 19.8110014152 -60 48 46.298213784   9.49 9.30     B9V 45 0
113 HD 65869 * 07 57 21.1266315240 -60 46 03.008222832   7.73 7.72     B8/9V 53 0
114 HD 65896 * 07 57 31.7403701472 -60 37 51.247355808   9.40 9.35     A0V 57 0
115 HD 65931 * 07 57 34.7967915336 -61 03 30.669483204   8.91 8.85     B9/A0V 42 0
116 CD-60 1946 SB* 07 57 37.8603841224 -60 54 32.082010704   8.89 8.81     B9V+A4V 49 0
117 HD 65950 V* 07 57 45.2194757688 -60 55 35.265618408 6.56 6.86 6.87     B8III 104 0
118 CD-60 1953 Be* 07 57 45.9261198264 -60 49 34.831188192   9.03 8.98     B9:p_sh_He-n 42 0
119 HD 65949 * 07 57 47.6703410424 -60 36 34.921501344 7.99 8.31 8.37     B8/9 108 0
120 CD-60 1954 Pu* 07 57 49.1756921659 -60 41 01.094971793   8.54 8.50     B9.5V 52 0
121 CD-60 1956 * 07 57 49.4649807267 -60 43 16.570451381   9.765 9.665 9.970   A0.5V 35 0
122 CD-60 1960 * 07 57 58.0340402773 -60 50 45.508338035   9.05 8.92     A0V 53 0
123 NGC 2516 OpC 07 58 00.5 -60 46 36           ~ 793 0
124 V* V391 Car a2* 07 58 02.5012020672 -60 48 46.812060396   8.89 8.96     A0pEuCrSr 67 0
125 V* V356 Car SB* 07 58 02.9117451672 -60 36 53.230792248 7.22 7.55 7.59     B9.5IVpSi 109 0
126 CD-60 1964 * 07 58 08.0526772176 -60 46 49.994541948   8.43 8.38     B8.5V 38 0
127 CD-60 1965 * 07 58 09.6293826072 -60 49 00.824187504   7.92 6.69     K2II 43 0
128 CD-60 1971 * 07 58 13.0116331656 -60 52 26.790779064   8.13 8.12     B8.5V 45 0
129 HD 66066B * 07 58 22.2659936496 -60 51 22.338259740   7.70 7.69     B8 28 0
130 CD-60 1974 * 07 58 24.0920706408 -60 52 30.957681684   9.48 9.44     A1V 41 0
131 CD-60 1975 * 07 58 27.2893208016 -60 48 07.402806936   8.49 8.39     B9V 49 0
132 CD-60 1978 * 07 58 30.7341134692 -60 43 44.632760324 8.55 8.71 8.70     B8.5IV-V 55 0
133 CD-60 1986 * 07 58 38.1487456440 -61 00 48.628912968   9.72 9.57     A2Van 30 0
134 HD 66137 SB* 07 58 43.5816517464 -60 42 05.077676880   7.87 7.84     B9(V) 48 0
135 HD 66194 Be* 07 58 50.5509433080 -60 49 28.060460040 4.92 5.72 5.81 5.77 5.83 B3Vn 153 0
136 HD 66259 * 07 59 14.6921011440 -60 35 13.574694156 8.26 8.36 8.33     B9.5V 63 0
137 V* V422 Car a2* 07 59 21.2942838672 -60 48 56.393118468   9.13 9.08     B8/9pSi 84 0
138 HD 66318 * 07 59 27.4731907320 -60 47 47.144978988   9.69 9.56   9.555 A2:IV:pSiSrCr 99 0
139 V* V460 Car LP* 07 59 37.5423065376 -60 35 13.423848216   6.91 5.18     M1.5IIb 97 0
140 HD 66341 * 07 59 40.0869376656 -60 12 26.462694780 5.84 6.233 6.294     B5III 64 0
141 HD 66409 Ro* 07 59 57.8067802465 -60 44 48.469843598 8.08 8.38 8.37     B8IV/V 64 0
142 CD-60 2017 * 08 00 34.4558383608 -60 42 55.967765400   10.00 9.92     A0V 36 0
143 HD 67170 * 08 03 07.5330759696 -62 07 58.122875784   8.10 8.11     B8III/IV 35 0
144 HD 67277 Ro* 08 03 41.6431002984 -60 54 27.201228984   8.24 8.26     B8III 41 0
145 HD 68372 SB* 08 08 44.4562448136 -60 37 32.926576620   7.28 7.31     B8III 26 0
146 HD 88980 * 10 13 45.9517652016 -63 53 59.709829236   9.04 8.73     A8V 31 0
147 HD 89903 * 10 20 18.8414432928 -66 03 49.019500584   7.59 7.50     A0/1Vn 23 0
148 HD 90731 * 10 26 44.4239816304 -64 21 06.126829848   7.43 7.41     A0V 30 0
149 HD 90837 * 10 27 30.2505358824 -63 31 23.762717940   8.52 8.32     A3IV 27 0
150 HD 91043 * 10 28 43.6989118512 -64 35 39.071458284   9.60 9.18     F3V 28 0
151 * p Car Be* 10 32 01.4650915230 -61 41 07.195030368 2.46 3.18 3.27 3.22 3.28 B4Vne 243 0
152 V* V407 Car a2* 10 38 17.5533646560 -65 02 30.968296872   6.646 6.711     B9Vn 96 0
153 HD 92467A * 10 38 51.3746764495 -64 29 52.801836545   7.15 7.17     ~ 52 0
154 HD 92467 ** 10 38 51.3790597 -64 29 52.853349 6.86         B9.5V 50 0
155 HD 92478 * 10 39 02.4966492552 -64 58 29.841808764   7.62 7.59     A0V 54 0
156 HD 92536 * 10 39 22.8313738440 -64 06 42.438258936 5.95 6.238 6.314     B8V 79 0
157 HD 92535 * 10 39 24.9815405520 -63 46 41.141644932   8.47 8.27     A6V 41 0
158 V* V364 Car a2* 10 40 11.4474547680 -65 06 00.752607072 4.79 5.36 5.52     ApSi 154 0
159 HD 92715 * 10 40 42.1062180072 -64 39 11.462208876   6.772 6.800     B9.5V 53 0
160 HD 92783 * 10 41 06.4151530080 -64 28 27.769312128   6.642 6.689     B9V 76 0
161 HD 92837 * 10 41 35.1354483384 -64 06 23.009947632   7.148 7.163     A0V 61 0
162 HD 92938 Be* 10 42 14.1192723749 -64 27 59.133997516 4.10 4.68 4.82     B3V 131 0
163 HD 92966 * 10 42 25.1567646288 -64 23 55.721600772   7.25 7.25     B9V 51 0
164 HD 92928 * 10 42 27.4008075552 -58 39 32.480762724   9.42 8.84     F0Ib/II 15 0
165 HD 92989 * 10 42 38.4130732032 -64 40 40.612543428   7.64 7.58     A0V 42 0
166 IC 2602 OpC 10 42 55.9 -64 25 22           ~ 735 0
167 * tet Car SB* 10 42 57.4019674 -64 23 40.020796 1.53 2.54 2.76 2.87 3.10 B0Vp 351 0
168 HD 93098 * 10 43 29.4848028216 -64 04 06.512815632   7.64 7.60     A0V 50 0
169 HD 93194 * 10 44 06.9012455223 -63 57 39.869369989 4.03 4.649 4.789     B3/5Vn 94 0
170 HD 93517 * 10 46 09.8943231384 -64 35 44.089335456   7.95 7.86     A1V 45 0
171 HD 93540 Pu* 10 46 16.5473233704 -64 30 52.422448716 4.79 5.24 5.34     B6Vnn 100 0
172 HD 93549 SB* 10 46 29.5881441504 -64 15 47.653678296 4.69 5.136 5.229     B6-7V 93 0
173 HD 93607 * 10 46 51.2189828556 -64 23 00.504549149 4.06 4.69 4.83     B4V 101 0
174 HD 93648 * 10 47 09.1391862120 -64 15 52.852239900   7.97 7.87     A0Vn 32 0
175 HD 93738 ** 10 47 53.5366177728 -64 15 46.204877412   6.442 6.452     B9.5V 53 0
176 HD 93874 * 10 48 41.9556676536 -63 49 58.846928484   8.35 8.19     A3(IV) 44 0
177 HD 94174 * 10 50 46.0221369336 -64 28 46.037836056   7.87 7.78     A0V 55 0
178 HD 95786 * 11 01 54.7207888800 -66 00 44.417137536   7.58 7.52     A0/1V 34 0
179 HD 96287 * 11 04 49.9428886992 -64 36 56.624865552   7.236 7.231     B9.5V 42 0
180 HD 105805 Em* 12 10 46.0951571112 +27 16 53.421950208   6.110 5.987     A5V 100 0
181 HD 105863 * 12 11 07.3820881128 +25 59 24.629771616   10.18 9.55     F8.2 47 0
182 Cl Melotte 111 OpC 12 11 54.9 +25 16 36           ~ 520 0
183 V* GM Com dS* 12 12 24.8945127048 +27 22 48.353939724   8.44 8.1     F2-3V 129 0
184 HD 106691 Em* 12 16 08.3755905912 +25 45 37.337623776   8.46 8.08     F3 113 0
185 HD 106946 Em* 12 17 50.9063952576 +25 34 16.838682780   8.19 7.87     F2Vs 110 0
186 HD 107067 SB* 12 18 36.1809470880 +23 07 12.274326840   9.17 8.70     F8 95 0
187 HD 107132 V* 12 19 01.4794667088 +24 50 46.186912968   9.26 8.81     F7Vv 85 0
188 V* FM Com dS* 12 19 02.0250151224 +26 00 30.060577116   6.605 6.433     A6:IV-Vmv 165 0
189 * 8 Com * 12 19 19.1929880208 +23 02 04.821806040   6.416 6.220     kA7hF2mF3 147 0
190 * 10 Com Em* 12 19 50.6242729536 +28 27 51.675976548   6.812 6.617     kA5mA7(V) 129 0
191 HD 107399 Em* 12 20 45.5706181896 +25 45 57.104302932   9.62 9.00     G0 123 0
192 V* KU Com dS* 12 21 26.7390932544 +24 59 49.298164296   7.64 7.38     Am 130 0
193 HD 107583 Em* 12 21 49.0266762216 +26 32 56.750515116   9.89 9.31     G0V 109 0
194 HD 107611 Em* 12 21 56.1616739640 +27 18 34.236329472   8.95 8.50     F5 124 0
195 HD 107685 * 12 22 24.7563796200 +22 27 50.908932288   8.98 8.54     F6 98 0
196 * 12 Com SB* 12 22 30.3113907816 +25 50 46.167660348 5.56 5.30 4.81 4.34 4.01 F6III+A3V 196 0
197 HD 107793 SB* 12 23 08.3994739320 +25 51 04.947925896   9.64 9.09     F9V 123 0
198 HD 107877 Em* 12 23 41.0100897456 +26 58 47.754411960   8.75 8.35     F5 115 0
199 HD 107935 SB* 12 24 03.4621039848 +25 51 04.359102696   6.917 6.693     Am 94 0
200 V* IL Com RS* 12 25 02.2563809088 +25 33 38.383306020   8.63 8.14     F8 161 0
201 HD 108154 * 12 25 22.4975294904 +23 13 44.725774908   8.99 8.56     F5 100 0
202 HD 108226 Em* 12 25 51.9521131776 +26 46 36.015060288   8.76 8.34     F5 113 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 167 0
204 NAME Coma Dwarf Galaxy G 12 26 59.0 +23 54 15     14.1     ~ 482 1
205 * 16 Com * 12 26 59.2962947904 +26 49 32.526134544   5.045 4.959   4.93 A4V 169 0
206 HD 108486 EB* 12 27 38.3636590224 +25 54 43.580490048   6.835 6.654     A1IV-VSrSi 138 0
207 * 17 Com a2* 12 28 54.7022406648 +25 54 46.265813136   5.208 5.236     B9VCrEu 288 0
208 * 21 Com a2* 12 31 00.5605002264 +24 34 01.797245328   5.496 5.436     A2pv 295 0
209 HD 108976 Em* 12 31 03.0979192032 +27 43 49.221073380   9.03 8.57     F6V 116 0
210 HD 109069 * 12 31 50.5548514464 +29 18 50.908640220   7.86 7.55     F0V 62 0
211 * 22 Com * 12 33 34.2193153104 +24 16 58.739975472   6.363 6.243     A4Vm 164 0
212 HD 109483 Em* 12 34 54.2985164088 +27 27 20.207769624   9.60 9.0     G4.8 38 0
213 NAME Upper Sco-Cen As* 16 15 -24.2           ~ 1497 1
214 HD 161575 * 17 47 47.5511946360 -34 18 38.451957264   6.94 6.93     B9III(pSi) 45 0
215 HD 161649 * 17 48 11.2561948752 -34 34 55.003044864   7.78 7.79     B8/9Ib/II 25 0
216 HD 161855 * 17 49 29.0976160944 -35 22 41.176830072   7.35 7.35     B9.5V 35 0
217 HD 162144 * 17 51 02.1250944312 -35 04 13.969414956   7.61 7.63     A0III/IV 41 0
218 HD 162205 * 17 51 16.7040973824 -34 49 14.203507728   9.33 9.36     B5III 8 0
219 HD 162223 * 17 51 25.6954385640 -34 33 35.790123924   9.21 8.91     A2III 31 0
220 HD 162224 * 17 51 25.9014964032 -35 02 03.810883524   9.18 9.11     A0IV 25 0
221 HD 162285 * 17 51 50.3135826168 -34 32 53.460753576   8.75 8.71     A2 21 0
222 HD 162305 * 17 51 52.8802756344 -34 46 56.811887580   7.76 7.77     B8/9III/IV 50 0
223 HD 320765 * 17 52 05.2064788728 -34 55 42.347880048   8.80 8.73     A1V 18 0
224 HD 320764 ** 17 52 09.8992540872 -34 53 40.323689880   9.38 9.38 9.55   ~ 43 1
225 HD 162349 * 17 52 10.4411841792 -35 00 06.529597956   8.40 8.35     A0IV/V 15 0
226 V* V957 Sco BS* 17 52 13.6613130072 -34 47 57.109291728 5.16 5.80 5.90     B5IVp 146 0
227 HD 162392 * 17 52 19.6185257376 -34 37 05.118685248   9.02 9.01     A0V 16 0
228 HD 162391 SB* 17 52 19.7613514968 -34 25 00.630446052   6.95 5.85     G8/K0III 54 0
229 HD 162393 * 17 52 20.0207711592 -34 58 27.951145932   8.09 8.06     A0V 31 0
230 HD 162457 * 17 52 40.8797417712 -34 55 45.713277156   8.32 8.29     A9V 34 0
231 HD 162496 * 17 52 49.2230547264 -34 06 53.395481952   7.30 6.06     K1III 32 0
232 HD 162514 * 17 52 54.4615094904 -34 35 28.949082972   9.10 8.87     A7/8V 24 0
233 HD 162515 SB* 17 52 55.7709053280 -35 01 08.012539056   6.57 6.57     B9III 83 0
234 V* V958 Sco a2* 17 53 15.9791676888 -34 37 15.060028836   7.01 6.99     B8/9III 88 0
235 HD 162586 ** 17 53 19.58018 -34 43 50.9011   6.07 6.12     B3/5III 73 0
236 V* V959 Sco a2* 17 53 23.4267824736 -35 01 01.013132676   7.21 7.22     ApSi 72 0
237 HD 162587 ** 17 53 23.47133 -34 53 42.4372           K3III 56 0
238 V* V1091 Sco a2* 17 53 29.9974736448 -36 30 30.809865420   7.99 8.00     ApSi 40 0
239 NGC 6475 OpC 17 53 44.1 -34 49 36           ~ 413 0
240 HD 162679 ** 17 53 44.1375776664 -34 47 39.825723444   8.76 8.88 8.37   B9/A0(V) 70 0
241 HD 162678 * 17 53 45.5007392112 -34 47 09.707011908   6.38 6.38     B9/A0II/III 55 0
242 V* V906 Sco SB* 17 53 54.7731227 -34 45 09.785378   5.95 5.96     B9V+B9V 128 0
243 V* V951 Sco a2* 17 53 58.1358478008 -34 49 51.800052684   6.43 6.42     kB6hA0VHeA0pSiCr 111 0
244 HD 162781 * 17 54 13.0006902336 -34 49 24.460574232   7.59 7.50     A0IV 39 0
245 HD 162780 SB* 17 54 14.3800584792 -34 43 39.531808668   6.94 6.91     A0(IV) 78 0
246 HD 162804 * 17 54 22.0846696176 -34 52 42.379719384   7.04 7.06     B9III/IV 46 0
247 HD 162817 * 17 54 27.1232887320 -34 28 00.204740616   6.15 6.11     B9.5/A0III 84 0
248 HD 162874 * 17 54 38.2624134912 -33 57 22.741077672   7.84 7.80     B9.5V 42 0
249 HD 162888 Be* 17 54 47.8841794680 -34 32 31.801946712   6.99 6.98     A0IIIe 65 0
250 HD 162926 * 17 55 08.0316869184 -36 28 32.320078824   6.113 6.053     B9.5III 33 0
251 HD 163109 * 17 55 56.1879202704 -34 17 11.854990428   8.02 8.01     B9IV 46 0
252 HD 163139 * 17 56 07.8774555672 -35 02 56.052945780   6.75 6.73     B9.5III 33 0
253 HD 163251 * 17 56 46.3579283952 -35 12 05.311045620   7.71 7.74     B7II/III 20 0
254 HD 164108 * 18 01 11.8677749208 -35 19 44.807115468   8.86 8.75     A0V 28 0

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