2012ApJ...747...51H


C.D.S. - SIMBAD4 rel 1.7 - 2020.12.02CET14:23:23

2012ApJ...747...51H - Astrophys. J., 747, 51 (2012/March-1)

Time-series photometry of stars in and around the Lagoon Nebula.I. Rotation periods of 290 low-mass pre-main-sequence stars in NGC 6530.

HENDERSON C.B. and STASSUN K.G.

Abstract (from CDS):

We have conducted a long-term, wide-field, high-cadence photometric monitoring survey of ∼50,000 stars in the Lagoon Nebula H II region. This first paper presents rotation periods for 290 low-mass stars in NGC 6530, the young cluster illuminating the nebula, and for which we assemble a catalog of infrared and spectroscopic disk indicators, estimated masses and ages, and X-ray luminosities. The distribution of rotation periods we measure is broadly uniform for 0.5 days < P < 10 days; the short-period cutoff corresponds to breakup. We observe no obvious bimodality in the period distribution, but we do find that stars with disk signatures rotate more slowly on average. The stars' X-ray luminosities are roughly flat with rotation period, at the saturation level (log LX/Lbol~ -3.3). However, we find a significant positive correlation between LX/Lbol and corotation radius, suggesting that the observed X-ray luminosities are regulated by centrifugal stripping of the stellar coronae. The period-mass relationship in NGC 6530 is broadly similar to that of the Orion Nebula Cluster (ONC), but the slope of the relationship among the slowest rotators differs from that in the ONC and other young clusters. We show that the slope of the period-mass relationship for the slowest rotators can be used as a proxy for the age of a young cluster, and we argue that NGC 6530 may be slightly younger than the ONC, making it a particularly important touchstone for models of angular momentum evolution in young, low-mass stars.

Abstract Copyright:

Journal keyword(s): stars: individual: NGC 6530 - stars: pre-main sequence - stars: rotation

VizieR on-line data: <Available at CDS (J/ApJ/747/51): table4.dat table5.dat>

Simbad objects: 307

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Number of rows : 307

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 IC 348 OpC 03 44 34 +32 09.8           ~ 1238 1
2 Cl Melotte 22 OpC 03 47 00 +24 07.0           ~ 3037 0
3 Cl Melotte 25 OpC 04 26 54.00 +15 52 00.0           ~ 2715 0
4 NAME Tau-Aur Complex SFR 04 30 +25.0           ~ 1234 0
5 * psi01 Ori Be* 05 24 44.8269466961 +01 50 47.202396831 3.83 4.76 4.96 5.04 5.26 B1Vn 323 0
6 NAME Orion Nebula Cluster OpC 05 35.0 -05 29           ~ 2021 1
7 V* V1647 Ori Or* 05 46 13.1370923766 -00 06 04.876812846     18.1     ~ 237 1
8 NGC 2264 OpC 06 40 58 +09 53.7     3.9     ~ 1606 1
9 NGC 2362 OpC 07 18 41 -24 57.3     4.1     ~ 361 0
10 NGC 2516 OpC 07 58 04 -60 45.2           ~ 597 0
11 NGC 2547 OpC 08 09 52.360 -49 10 35.01           ~ 319 0
12 M 8 HII 18 03 37 -24 23.2           ~ 559 1
13 NAME Herschel 36 ** 18 03 40.321 -24 22 42.86 10.26 10.88 10.30 10.27   O7:V 181 2
14 Cl* NGC 6530 SCB 203 Em* 18 03 47.2003471397 -24 24 21.361962230 18.593 17.394 16.109   14.409 K2-K3V 9 0
15 Cl* NGC 6530 SCB 222 Em* 18 03 49.2001339853 -24 22 08.529996656 19.363 18.051 16.836   15.083 ~ 8 0
16 Cl* NGC 6530 WFI 16866 Y*O 18 03 49.3472626530 -24 24 01.316214015   22.130 20.295   16.917 ~ 5 0
17 V* V1762 Sgr Or* 18 03 50.2264117529 -24 22 23.385108503 19.491 17.168 15.863   14.173 ~ 8 0
18 2MASS J18035351-2421237 Y*O 18 03 53.5061051876 -24 21 23.782995456 16.583 15.530 14.522   13.271 ~ 8 0
19 2MASS J18035388-2421276 Y*O 18 03 53.8820643261 -24 21 27.602061076 20.459 20.333 18.123   16.013 ~ 5 0
20 2MASS J18035409-2423572 Y*O 18 03 54.0847082604 -24 23 57.325986363 20.793 19.241 17.743   15.699 K4-K6V 7 0
21 2MASS J18035410-2420051 Y*O 18 03 54.0856851545 -24 20 05.071967790   22.065 20.309   17.412 ~ 6 0
22 2MASS J18035526-2417000 Y*O 18 03 55.2620664576 -24 17 00.001854919   15.733 14.700   13.429 K4-K5V 10 0
23 2MASS J18035604-2419148 Y*O 18 03 56.0348222624 -24 19 14.913935210 21.206 20.201 18.483   16.215 ~ 5 0
24 2MASS J18035619-2422408 Y*O 18 03 56.20 -24 22 40.9   19.542 17.857   15.727 ~ 4 0
25 2MASS J18035636-2417043 Y*O 18 03 56.3574103310 -24 17 04.450963200 22.574 21.887 19.978   16.881 ~ 5 0
26 2MASS J18035730-2416099 Y*O 18 03 57.3010633886 -24 16 09.986071447   17.468 16.317   14.871 K7-M0V 9 0
27 2MASS J18035828-2421048 Y*O 18 03 58.2743290878 -24 21 04.809577571 20.736 19.550 18.154   16.064 ~ 5 0
28 2MASS J18035837-2421266 Y*O 18 03 58.3721519431 -24 21 26.617047713 22.050 19.280 17.507   15.253 ~ 6 0
29 2MASS J18035851-2426292 Y*O 18 03 58.5100985329 -24 26 29.236764169 21.615 21.827 19.185   16.016 ~ 5 0
30 2MASS J18035885-2425292 Y*O 18 03 58.8353169733 -24 25 29.204779506 20.162 18.863 17.279   15.021 ~ 6 0
31 2MASS J18035910-2422376 Y*O 18 03 59.0960300221 -24 22 37.706927190   20.321 18.448   16.229 ~ 5 0
32 2MASS J18035929-2416583 Y*O 18 03 59.2906800488 -24 16 58.442645017 21.539 21.026 19.389   16.527 ~ 5 0
33 2MASS J18035946-2412235 Y*O 18 03 59.4540951629 -24 12 23.604665552 18.572 16.939 15.708   14.146 ~ 7 0
34 2MASS J18035987-2417056 Y*O 18 03 59.8636682794 -24 17 05.853461235   22.618 20.087   17.309 ~ 5 0
35 2MASS J18040008-2419119 Y*O 18 04 00.0733982036 -24 19 11.965764917 17.604 16.464 15.351   13.961 ~ 8 0
36 2MASS J18040014-2424092 Y*O 18 04 00.15 -24 24 09.3   22.049 19.647   16.647 ~ 5 0
37 2MASS J18040016-2419253 Y*O 18 04 00.1580022226 -24 19 25.378033137   19.929 18.286   15.406 ~ 5 0
38 2MASS J18040018-2421218 Y*O 18 04 00.18 -24 21 21.9 21.755 19.871 18.079   15.685 ~ 5 0
39 2MASS J18040023-2424484 Y*O 18 04 00.2248800731 -24 24 48.610934038   22.895 19.846   17.106 ~ 5 0
40 2MASS J18040057-2425024 Y*O 18 04 00.5676843966 -24 25 02.449435342 20.382 20.718 19.202   16.687 ~ 5 0
41 2MASS J18040062-2416374 Y*O 18 04 00.6149252142 -24 16 37.452086401 20.999 20.147 18.615   16.507 ~ 5 0
42 2MASS J18040065-2426135 Y*O 18 04 00.6507727087 -24 26 13.708756989 21.597 20.399 18.454   15.934 ~ 5 0
43 2MASS J18040152-2413233 Y*O 18 04 01.5133331596 -24 13 23.381988824 19.108 17.444 16.023   14.258 ~ 7 0
44 2MASS J18040222-2417533 Y*O 18 04 02.2208554667 -24 17 53.482267159 21.458 20.272 18.735   16.509 M0-M1V 6 0
45 2MASS J18040225-2416013 Y*O 18 04 02.271 -24 16 01.19   21.203 19.580   17.088 ~ 4 0
46 2MASS J18040253-2413374 Y*O 18 04 02.5270794362 -24 13 37.569135978 22.166 21.344 19.651   17.107 ~ 5 0
47 2MASS J18040256-2420109 Y*O 18 04 02.5342733758 -24 20 10.945229160   19.795 18.271   16.142 ~ 5 0
48 NGC 6530 16 * 18 04 02.688 -24 10 55.05   12.403 12.151   11.812 ~ 11 0
49 2MASS J18040275-2422232 Y*O 18 04 02.7306167345 -24 22 23.282941361 22.068 20.177 18.489   16.242 ~ 5 0
50 Cl* NGC 6530 WFI 27090 Em* 18 04 02.7636015844 -24 17 54.755337217 22.307 20.291 18.965   16.788 ~ 6 0
51 2MASS J18040288-2424562 Y*O 18 04 02.8970665903 -24 24 56.301061315     20.330   16.813 ~ 5 0
52 2MASS J18040296-2426442 Y*O 18 04 02.9585942979 -24 26 44.271079785 19.761 18.626 17.119   15.038 K5-K6V 8 0
53 2MASS J18040338-2420401 Y*O 18 04 03.39 -24 20 40.1 20.873 19.722 18.264   16.175 ~ 5 0
54 2MASS J18040373-2421053 Y*O 18 04 03.7281185605 -24 21 05.361337620 21.403 19.319 17.768   15.824 ~ 7 0
55 2MASS J18040375-2425539 Y*O 18 04 03.7377092647 -24 25 53.599379891   22.520 20.785   17.509 ~ 5 0
56 2MASS J18040412-2419413 Y*O 18 04 04.1186056431 -24 19 41.135351830 21.953 20.041 18.441   16.066 ~ 5 0
57 2MASS J18040430-2419083 Y*O 18 04 04.2994619077 -24 19 08.356410434 20.414 19.227 17.651   15.532 ~ 6 0
58 2MASS J18040430-2417105 Y*O 18 04 04.3014172350 -24 17 10.615747109 21.836 19.551 17.871   15.571 G7-G9V 7 0
59 2MASS J18040479-2426373 Y*O 18 04 04.7834530400 -24 26 37.248667436 20.371 18.620 17.203   15.382 ~ 7 0
60 2MASS J18040490-2427321 Y*O 18 04 04.8942819718 -24 27 32.196916601   19.413 17.852   15.973 K4-K6V 6 0
61 2MASS J18040510-2416421 Y*O 18 04 05.1037161946 -24 16 42.128802245 19.570 17.659 16.276   14.539 M0.5-M1V 11 0
62 2MASS J18040520-2425131 Y*O 18 04 05.1957462716 -24 25 13.226057715   20.905 19.131   16.418 ~ 6 0
63 2MASS J18040526-2423388 Y*O 18 04 05.2759081476 -24 23 38.883425974 21.616 19.229 17.808   15.768 ~ 6 0
64 2MASS J18040541-2422327 Y*O 18 04 05.4090504048 -24 22 32.764824982 20.999 22.261 20.690   17.309 ~ 5 0
65 2MASS J18040565-2424550 Y*O 18 04 05.6531724432 -24 24 55.120160628 19.788 17.963 16.420   14.548 ~ 6 0
66 2MASS J18040576-2414550 Y*O 18 04 05.7613545327 -24 14 55.035997820 20.509 18.448 17.040   15.026 K7.5-M0.5V 8 0
67 2MASS J18040582-2425186 Y*O 18 04 05.8268420032 -24 25 18.365812674 19.717 18.149 16.765   14.990 K2.5-K3.5V 9 0
68 2MASS J18040650-2417412 Y*O 18 04 06.4987006924 -24 17 41.240439780 19.871 19.233 17.948   16.261 ~ 7 0
69 2MASS J18040773-2421542 Y*O 18 04 07.7296442970 -24 21 54.186600341 22.926 21.202 19.539   16.936 ~ 5 0
70 2MASS J18040780-2420292 Y*O 18 04 07.7836024402 -24 20 29.187472030   20.109 18.188   15.455 ~ 5 0
71 2MASS J18040901-2417556 Y*O 18 04 09.0111022143 -24 17 55.544560056 22.414 20.740 19.010   16.609 ~ 5 0
72 2MASS J18040914-2423375 Y*O 18 04 09.15 -24 23 37.5 22.058 21.027 19.740   17.030 ~ 5 0
73 V* V1768 Sgr Or* 18 04 09.1514262749 -24 20 19.847768397 20.535 18.644 17.094   14.977 ~ 7 0
74 Cl* NGC 6530 WFI 29683 Y*O 18 04 09.326 -24 16 30.95 21.961 19.801 18.206   16.082 M0.5-M1V 6 0
75 2MASS J18040943-2427038 Y*O 18 04 09.4115154882 -24 27 03.922921584   19.186 17.667   15.693 ~ 6 0
76 2MASS J18040946-2422091 Y*O 18 04 09.4609464299 -24 22 09.067541498 21.071 21.207 19.789   17.108 ~ 5 0
77 2MASS J18040975-2416228 Y*O 18 04 09.75 -24 16 22.8 21.553 20.290 18.602   16.337 K1-K2V 6 0
78 2MASS J18040998-2419298 Y*O 18 04 09.9902817303 -24 19 29.842325926   18.389 16.800   14.748 M0-M1V 7 0
79 2MASS J18041010-2424198 Y*O 18 04 10.1168134539 -24 24 19.715538259 22.314 21.139 19.786   16.988 ~ 5 0
80 Cl* NGC 6530 WFI 32594 * 18 04 10.14 -24 15 15.3   20.511 18.694   16.222 ~ 4 0
81 2MASS J18041024-2414009 Y*O 18 04 10.2499597587 -24 14 00.861583120 22.468 19.893 18.227   15.949 ~ 5 0
82 2MASS J18041065-2418228 Y*O 18 04 10.6629133751 -24 18 22.785622662 22.666 20.534 18.864   16.645 ~ 5 0
83 [BNM2013] 7.04 2545 * 18 04 11.3093169488 -24 19 33.117689646 21.223 21.499 20.053   17.090 ~ 4 0
84 2MASS J18041195-2426279 Y*O 18 04 11.9538125229 -24 26 27.867433404 19.973 18.106 16.556   14.358 ~ 10 0
85 2MASS J18041200-2425112 Y*O 18 04 11.9967978588 -24 25 11.427929706 22.270 19.848 18.143   15.987 ~ 5 0
86 Cl* NGC 6530 WFI 15682 Y*O 18 04 12.071 -24 24 47.22 22.295 21.767 20.130   17.447 ~ 6 0
87 2MASS J18041207-2419098 Y*O 18 04 12.0784935804 -24 19 09.820582698 21.470 19.165 17.495   15.275 M0.5-M1.5V 7 0
88 Cl* NGC 6530 SCB 438 Em* 18 04 12.1481820635 -24 22 19.774907788 19.515 18.286 16.899   15.020 ~ 8 0
89 2MASS J18041229-2420031 Y*O 18 04 12.3011558718 -24 20 03.027851497 21.067 19.950 18.310   16.109 ~ 5 0
90 2MASS J18041249-2419033 Y*O 18 04 12.4920377227 -24 19 03.556040350 21.852 19.666 17.959   15.489 ~ 5 0
91 2MASS J18041268-2422489 Y*O 18 04 12.6909090789 -24 22 48.911523045 22.251 21.409 20.409   17.198 ~ 5 0
92 2MASS J18041273-2423127 Y*O 18 04 12.7350522126 -24 23 12.642013347 23.039 19.341 17.754   15.642 ~ 6 0
93 2MASS J18041277-2414530 Y*O 18 04 12.7928994658 -24 14 53.463263168 22.869 20.673 18.801   16.411 ~ 5 0
94 2MASS J18041283-2423445 Y*O 18 04 12.83 -24 23 44.5 21.061 20.704 18.923   16.202 ~ 5 0
95 Cl* NGC 6530 WFI 17456 Y*O 18 04 12.849 -24 23 42.75   20.664 18.844   16.499 ~ 4 0
96 2MASS J18041306-2422429 Y*O 18 04 13.0695462828 -24 22 42.937516683 20.467 18.667 17.340   15.601 K4-K6V 8 0
97 2MASS J18041308-2426135 Y*O 18 04 13.0900498393 -24 26 13.445842965 19.871 19.207 17.467   15.119 K7.5-M0.5V 9 0
98 2MASS J18041326-2413456 Y*O 18 04 13.2756090723 -24 13 45.645548593   22.482 20.765   17.535 ~ 5 0
99 2MASS J18041345-2417491 Y*O 18 04 13.4619974344 -24 17 49.096038319 21.953 21.155 19.580   16.935 ~ 5 0
100 2MASS J18041353-2417273 Y*O 18 04 13.54 -24 17 27.4   19.540 17.882   15.561 M0-M1V 5 0
101 2MASS J18041377-2424051 Y*O 18 04 13.7783309773 -24 24 05.066851324 18.644 16.956 15.622   13.898 ~ 9 0
102 2MASS J18041384-2420309 Y*O 18 04 13.8658271234 -24 20 31.009296524   20.932 18.834   16.323 ~ 5 0
103 2MASS J18041388-2417173 Y*O 18 04 13.8862251361 -24 17 17.485164202 21.373 19.833 18.208   15.876 ~ 5 0
104 2MASS J18041411-2421306 Y*O 18 04 14.1176382770 -24 21 30.527543786 21.854 20.151 18.381   15.887 ~ 5 0
105 Cl* NGC 6530 SCB 461 * 18 04 14.38 -24 15 33.4   17.128 16.242   14.998 ~ 4 0
106 2MASS J18041465-2419041 Y*O 18 04 14.6585804873 -24 19 04.095569468   20.141 18.410   15.983 ~ 8 0
107 2MASS J18041471-2420073 Y*O 18 04 14.7153846126 -24 20 07.329222546   21.586 19.562   16.970 ~ 5 0
108 2MASS J18041476-2421154 Y*O 18 04 14.7687127155 -24 21 15.424620525 21.311 20.774 18.918   16.246 ~ 5 0
109 2MASS J18041483-2423558 Y*O 18 04 14.83 -24 23 55.9   20.127 18.636   16.470 ~ 5 0
110 2MASS J18041485-2417378 Y*O 18 04 14.8609915078 -24 17 37.794306393 21.741 19.919 18.243   15.937 M0-M1V 6 0
111 2MASS J18041486-2426377 Y*O 18 04 14.8653726258 -24 26 37.644908736   20.160 18.666   16.247 ~ 5 0
112 2MASS J18041504-2424161 Y*O 18 04 15.0456484536 -24 24 16.104515905 21.978 19.312 17.899   15.869 ~ 7 0
113 2MASS J18041519-2419071 Y*O 18 04 15.1987945210 -24 19 07.025024307 19.326 17.990 16.762   15.180 ~ 7 0
114 2MASS J18041531-2426369 Y*O 18 04 15.3193743596 -24 26 36.813764111 21.371 19.057 17.547   15.536 ~ 7 0
115 2MASS J18041541-2425270 Y*O 18 04 15.4157178487 -24 25 26.751222151 20.698 19.350 17.859   15.569 ~ 6 0
116 2MASS J18041560-2421518 Y*O 18 04 15.6085344496 -24 21 51.717178190 20.985 18.915 17.480   15.620 ~ 6 0
117 2MASS J18041583-2425077 Y*O 18 04 15.8423686044 -24 25 07.654818059 20.627 18.722 17.291   15.384 ~ 7 0
118 2MASS J18041623-2418477 Y*O 18 04 16.2407605103 -24 18 47.781128628   20.070 18.142   15.394 ~ 5 0
119 V* V1778 Sgr Or* 18 04 16.4012857710 -24 24 38.832983090 19.725 18.188 16.771   14.774 ~ 11 0
120 2MASS J18041652-2424072 Y*O 18 04 16.5255964981 -24 24 07.122930492 22.169 19.531 18.023   15.936 ~ 6 0
121 Cl* NGC 6530 WFI 19113 * 18 04 16.64 -24 22 46.0 21.700 22.166 20.943   17.837 ~ 4 0
122 2MASS J18041664-2421360 Y*O 18 04 16.6463212736 -24 21 36.045424154 19.584 17.545 16.124   14.246 ~ 7 0
123 2MASS J18041679-2418309 Y*O 18 04 16.7808830200 -24 18 30.960328555 22.199 21.543 19.720   16.729 ~ 5 0
124 2MASS J18041705-2415579 Y*O 18 04 17.1035172547 -24 15 57.642408655 22.666 21.825 19.945   17.015 ~ 5 0
125 Cl* NGC 6530 WFI 29815 Em* 18 04 17.1386028681 -24 16 27.491068617 21.105 19.325 17.602   15.375 ~ 7 0
126 2MASS J18041730-2422280 Y*O 18 04 17.3043798451 -24 22 27.987504593 20.230 18.380 16.918   14.953 ~ 7 0
127 Cl* NGC 6530 SCB 893 Em* 18 04 17.7621209354 -24 17 09.471912082 20.338 18.915 17.385   15.323 ~ 7 0
128 2MASS J18041790-2424110 Y*O 18 04 17.9065379844 -24 24 10.961902643   22.248 19.615   16.410 ~ 5 0
129 2MASS J18041792-2418423 Y*O 18 04 17.9261762455 -24 18 42.273777204   21.594 19.635   16.889 ~ 5 0
130 2MASS J18041791-2418028 Y*O 18 04 17.9271435172 -24 18 02.520756530 22.074 20.166 18.503   16.196 ~ 5 0
131 2MASS J18041821-2420190 Y*O 18 04 18.2122375875 -24 20 18.867209107 22.073 20.626 18.998   16.633 ~ 5 0
132 2MASS J18041838-2428001 Y*O 18 04 18.3865536363 -24 28 00.043263686   20.507 18.840   16.243 ~ 4 0
133 2MASS J18041858-2418454 Y*O 18 04 18.5886471630 -24 18 45.482583387 22.719 21.396 19.637   16.924 ~ 5 0
134 2MASS J18041861-2418140 Y*O 18 04 18.6215951113 -24 18 13.965202475   22.351 20.270   17.475 ~ 5 0
135 2MASS J18041881-2427287 Y*O 18 04 18.8060295483 -24 27 28.596144553 19.192 17.729 16.461   14.824 ~ 7 0
136 2MASS J18041897-2421320 Y*O 18 04 18.9805541952 -24 21 31.970385318 20.597 18.646 17.099   15.111 ~ 6 0
137 2MASS J18041909-2422115 Y*O 18 04 19.0969770148 -24 22 11.469095573 21.300 19.610 18.027   15.837 ~ 5 0
138 2MASS J18041924-2421354 Y*O 18 04 19.2498067414 -24 21 35.470984176 19.874 17.768 16.331   14.507 ~ 7 0
139 2MASS J18041925-2422269 Y*O 18 04 19.2582993142 -24 22 26.829871346 20.776 19.960 18.673   16.284 ~ 9 0
140 Cl* NGC 6530 WFI 14041 Em* 18 04 19.4137928842 -24 26 07.140364576 20.974 19.345 17.852   15.767 ~ 8 0
141 2MASS J18041965-2428064 Y*O 18 04 19.65 -24 28 06.5   21.007 19.212   16.748 ~ 5 0
142 2MASS J18041980-2418061 Y*O 18 04 19.7998692120 -24 18 06.054838043 22.507 20.171 18.544   16.315 ~ 5 0
143 Cl* NGC 6530 SCB 540 Em* 18 04 20.0348951039 -24 22 48.116745449 18.864 17.389 16.143   14.354 ~ 11 0
144 2MASS J18042004-2420414 Y*O 18 04 20.0453021073 -24 20 41.380153885 21.826 21.730 19.922   16.859 ~ 5 0
145 Cl* NGC 6530 WFI 31545 Y*O 18 04 20.1123799821 -24 15 41.946551124 21.028 19.415 17.799   15.583 ~ 6 0
146 2MASS J18042032-2422487 Y*O 18 04 20.3288850827 -24 22 48.830426577 21.726 20.472 18.592   15.934 ~ 5 0
147 2MASS J18042035-2424069 Y*O 18 04 20.3537983739 -24 24 06.886101989 20.091 18.472 16.916   14.797 ~ 6 0
148 2MASS J18042040-2422590 Y*O 18 04 20.3907738074 -24 22 58.933746177 21.976 19.639 17.747   15.044 ~ 6 0
149 2MASS J18042040-2423180 Y*O 18 04 20.4084487776 -24 23 17.953082371   21.792 19.888   17.253 ~ 5 0
150 2MASS J18042041-2417171 Y*O 18 04 20.4191679809 -24 17 17.111568157 21.711 20.003 18.310   15.682 ~ 5 0
151 2MASS J18042044-2419236 Y*O 18 04 20.4427970227 -24 19 23.556034473 21.296 18.626 17.059   14.998 ~ 7 0
152 2MASS J18042101-2427029 Y*O 18 04 21.0093092435 -24 27 02.811246167 20.637 19.095 17.310   14.726 ~ 6 0
153 2MASS J18042108-2420473 Y*O 18 04 21.0823207938 -24 20 47.349486627 20.313 18.246 16.780   14.786 ~ 8 0
154 Cl* NGC 6530 SCB 556 Em* 18 04 21.091 -24 23 25.38 19.792 18.419 16.923   14.734 ~ 11 0
155 2MASS J18042110-2415450 Y*O 18 04 21.1105448239 -24 15 45.087097588 21.893 20.253 18.601   16.332 ~ 5 0
156 2MASS J18042132-2427451 Y*O 18 04 21.3265341685 -24 27 45.072996530   17.285 15.765   13.839 ~ 6 0
157 2MASS J18042175-2425294 Y*O 18 04 21.7633935305 -24 25 29.377092781 20.611 18.962 17.484   15.507 ~ 6 0
158 2MASS J18042178-2419053 Y*O 18 04 21.7887760984 -24 19 05.266715941   20.409 18.633   16.096 ~ 5 0
159 2MASS J18042181-2428464 Y*O 18 04 21.8057831239 -24 28 46.372998010   22.255 20.345   16.760 ~ 5 0
160 Cl* NGC 6530 WFI 19339 Y*O 18 04 22.082 -24 22 37.66   20.226 18.707   16.287 ~ 4 0
161 2MASS J18042209-2421174 Y*O 18 04 22.1014562804 -24 21 17.403603374   19.516 17.818   15.830 ~ 6 0
162 2MASS J18042210-2425466 Y*O 18 04 22.1076116468 -24 25 46.562915155 17.945 17.214 15.692   13.557 ~ 7 0
163 2MASS J18042234-2419371 Y*O 18 04 22.3351941257 -24 19 37.171408747 21.715 19.855 18.243   15.966 ~ 5 0
164 2MASS J18042257-2418506 Y*O 18 04 22.5721661024 -24 18 50.579143443   20.514 18.744   16.164 ~ 4 0
165 2MASS J18042264-2421110 Y*O 18 04 22.6503574469 -24 21 10.921702649 20.425 18.539 16.955   14.816 ~ 9 0
166 2MASS J18042279-2422238 Y*O 18 04 22.8037510743 -24 22 24.123697724 21.149 20.906 20.006   16.907 ~ 5 0
167 2MASS J18042282-2423564 Y*O 18 04 22.8271501500 -24 23 56.360909796 20.060 18.137 16.731   14.908 ~ 8 0
168 2MASS J18042336-2428322 Y*O 18 04 23.3602198754 -24 28 32.077508611 19.841 19.082 17.726   15.938 ~ 6 0
169 2MASS J18042369-2419570 Y*O 18 04 23.6911804227 -24 19 56.905683654 21.594 22.136 20.323   16.972 ~ 5 0
170 2MASS J18042368-2417292 Y*O 18 04 23.6918850557 -24 17 29.258882155 20.995 18.486 16.822   14.573 ~ 7 0
171 2MASS J18042369-2422398 Y*O 18 04 23.7002342270 -24 22 39.862453317 19.944 17.948 16.472   14.509 ~ 7 0
172 2MASS J18042374-2417511 Y*O 18 04 23.7478970555 -24 17 51.118496311 20.762 18.786 17.242   15.124 ~ 7 0
173 V* V1782 Sgr Or* 18 04 23.7841306055 -24 16 35.333644864 20.202 18.670 17.289   15.490 ~ 7 0
174 2MASS J18042403-2416536 Y*O 18 04 24.0303424865 -24 16 53.767943077 22.131 20.202 18.447   16.002 ~ 5 0
175 2MASS J18042410-2427002 Y*O 18 04 24.0986384315 -24 27 00.142136524 21.629 21.412 19.577   16.841 ~ 5 0
176 2MASS J18042427-2416517 Y*O 18 04 24.2811798989 -24 16 51.656237230 22.744 19.442 17.920   15.845 ~ 8 0
177 2MASS J18042438-2420386 Y*O 18 04 24.4004031021 -24 20 38.597748347 21.628 20.742 19.132   16.594 ~ 5 0
178 2MASS J18042444-2419517 Y*O 18 04 24.4425345887 -24 19 51.714787189 20.911 19.237 17.771   15.765 ~ 6 0
179 2MASS J18042466-2420263 Y*O 18 04 24.6629844547 -24 20 26.269563545 19.627 17.998 16.554   14.668 ~ 8 0
180 Cl* NGC 6530 WFI 15289 * 18 04 24.76 -24 25 02.6   21.213 18.844   16.218 ~ 3 0
181 Cl* NGC 6530 WFI 19545 Em* 18 04 24.9262450065 -24 22 30.006006845 20.763 19.024 17.647   15.738 ~ 7 0
182 2MASS J18042496-2424493 Y*O 18 04 24.9657193057 -24 24 49.255677170 21.004 19.159 17.621   15.479 ~ 5 0
183 2MASS J18042517-2424326 Y*O 18 04 25.1717707192 -24 24 32.542152693   20.928 19.150   16.314 ~ 6 0
184 V* V1785 Sgr Or* 18 04 25.2048701117 -24 13 34.054572208 20.287 18.684 17.184   15.177 ~ 6 0
185 2MASS J18042526-2420144 Y*O 18 04 25.2724000870 -24 20 14.384164514 20.571 18.700 17.214   15.058 ~ 6 0
186 Cl* NGC 6530 WFI 13456 * 18 04 25.32 -24 26 41.1   20.564 18.802   16.188 ~ 4 0
187 2MASS J18042557-2422072 Y*O 18 04 25.5836944975 -24 22 07.055265828 20.498 18.714 17.367   15.644 ~ 6 0
188 Cl* NGC 6530 WFI 19014 Y*O 18 04 25.978 -24 22 49.26   19.389 17.954   15.801 ~ 4 0
189 2MASS J18042652-2419043 Y*O 18 04 26.5293804871 -24 19 04.299537692 21.274 19.254 17.691   15.455 ~ 7 0
190 2MASS J18042683-2414107 Y*O 18 04 26.9163466806 -24 14 10.790940682 21.810 20.001 18.248   15.843 ~ 5 0
191 Cl* NGC 6530 WFI 24884 Em* 18 04 27.3240332639 -24 19 31.786144692   20.286 18.689   16.134 ~ 5 0
192 2MASS J18042758-2422206 Y*O 18 04 27.579 -24 22 20.57 21.236 19.473 17.951   15.767 ~ 5 0
193 V* V1788 Sgr Or* 18 04 27.7161876959 -24 20 51.246738434 19.601 17.794 16.502   14.805 ~ 6 0
194 Cl* NGC 6530 WFI 27280 * 18 04 27.85 -24 17 48.2 21.398 20.574 18.696   16.026 ~ 4 0
195 2MASS J18042790-2422085 Y*O 18 04 27.9100016001 -24 22 08.497189782 20.477 18.163 16.739   14.947 ~ 8 0
196 2MASS J18042794-2427599 Y*O 18 04 27.9512903198 -24 27 59.787824683   20.923 18.978   15.841 K0-K1V 5 0
197 2MASS J18042823-2425377 Y*O 18 04 28.2388289859 -24 25 37.643251600 21.658 19.513 17.922   15.618 M0-M0.5V 7 0
198 2MASS J18042875-2424397 Y*O 18 04 28.75 -24 24 39.7 20.513 19.438 17.842   15.640 ~ 5 0
199 Cl* NGC 6530 WFI 18719 Y*O 18 04 28.768 -24 22 59.45   21.490 19.444   16.711 ~ 4 0
200 Cl* NGC 6530 WFI 22057 Em* 18 04 28.8145951710 -24 21 04.493941172   20.403 19.021   16.512 ~ 6 0
201 2MASS J18042910-2420390 Y*O 18 04 29.11 -24 20 39.1 20.457 18.491 16.941   14.804 ~ 6 0
202 2MASS J18042914-2421526 Y*O 18 04 29.1393117368 -24 21 52.702443885 17.082 16.061 14.943   13.479 ~ 8 0
203 2MASS J18042915-2426320 Y*O 18 04 29.1526146669 -24 26 32.002179469 20.091 18.518 17.020   15.059 ~ 9 0
204 2MASS J18042914-2426107 Y*O 18 04 29.1583054817 -24 26 10.638885955   21.937 19.875   16.704 ~ 5 0
205 Cl* NGC 6530 WFI 18300 Y*O 18 04 29.196 -24 23 14.92   20.117 18.481   16.248 ~ 4 0
206 Cl* NGC 6530 WFI 19263 Y*O 18 04 29.316 -24 22 40.96   21.542 19.549   16.819 ~ 5 0
207 Cl* NGC 6530 WFI 16802 Y*O 18 04 29.341 -24 24 04.15   19.900 18.114   15.826 ~ 5 0
208 2MASS J18042934-2427040 Y*O 18 04 29.3448154519 -24 27 03.967441671 22.878 20.388 18.635   16.157 ~ 5 0
209 V* V1791 Sgr Or* 18 04 29.4465303869 -24 23 04.206447016 18.810 17.338 15.899   13.940 ~ 9 0
210 Cl* NGC 6530 WFI 21779 Em* 18 04 29.6571364858 -24 21 13.718139950 19.036 19.178 17.618   15.390 ~ 6 0
211 2MASS J18042974-2420041 Y*O 18 04 29.7359287529 -24 20 03.961650934 22.340 21.364 19.752   16.720 ~ 5 0
212 Cl* NGC 6530 WFI 14962 Y*O 18 04 29.815 -24 25 15.63 22.172 21.443 19.808   17.245 ~ 5 0
213 V* V1792 Sgr Or* 18 04 30.0059194641 -24 20 19.273881170 19.608 18.564 17.080   15.019 ~ 8 1
214 2MASS J18043031-2423089 Y*O 18 04 30.3109108682 -24 23 08.844518004   20.345 18.606   16.052 ~ 4 0
215 Cl* NGC 6530 WFI 14588 Y*O 18 04 30.408 -24 25 35.91   21.366 19.743   17.167 ~ 4 0
216 2MASS J18043044-2421360 Y*O 18 04 30.4276558500 -24 21 36.422979719 21.075 19.205 17.519   15.263 ~ 6 0
217 [BNM2013] 7.01 1876 * 18 04 30.4300044708 -24 28 53.269962220   20.006 18.289   15.930 ~ 5 0
218 2MASS J18043051-2417048 Y*O 18 04 30.5268537690 -24 17 04.798325973 20.497 18.725 17.355   15.558 ~ 7 0
219 2MASS J18043056-2423085 Y*O 18 04 30.5725100659 -24 23 08.472086668   19.780 18.194   15.925 ~ 5 0
220 2MASS J18043059-2420212 Y*O 18 04 30.5966233615 -24 20 21.087878418 21.068 19.575 17.981   15.746 ~ 5 0
221 NGC 6530 OpC 18 04 31 -24 21.5   4.74 4.6     ~ 356 1
222 Cl* NGC 6530 WFI 30332 Y*O 18 04 31.018 -24 16 14.54   22.118 20.204   16.888 ~ 4 0
223 2MASS J18043137-2424046 Y*O 18 04 31.3797199778 -24 24 04.853755903 21.969 20.268 18.489   16.182 ~ 5 0
224 2MASS J18043173-2414543 Y*O 18 04 31.7407492651 -24 14 54.331618860 21.464 19.877 18.121   15.597 K2-K3V 7 0
225 2MASS J18043189-2424403 Y*O 18 04 31.8964645665 -24 24 40.283897071 19.477 17.651 16.249   14.417 K2-K4V 8 0
226 2MASS J18043220-2421280 Y*O 18 04 32.2060828984 -24 21 28.080245671 19.125 17.639 16.250   14.368 ~ 8 0
227 Cl* NGC 6530 WFI 20027 Y*O 18 04 32.3974053113 -24 22 13.462401709 21.337 20.235 18.652   16.207 ~ 5 0
228 2MASS J18043285-2416222 Y*O 18 04 32.8577821659 -24 16 22.215335383   20.457 18.925   16.688 K7.5-M0.5V 5 0
229 2MASS J18043304-2427093 Y*O 18 04 33.04 -24 27 09.4   20.092 18.454   16.175 ~ 5 0
230 2MASS J18043338-2424115 Y*O 18 04 33.39 -24 24 11.5 22.527 20.402 19.036   16.755 ~ 5 0
231 2MASS J18043355-2426539 Y*O 18 04 33.5497784179 -24 26 53.576531278 20.582 18.952 17.390   15.236 G9-K1V 7 0
232 2MASS J18043359-2424066 Y*O 18 04 33.6017607768 -24 24 06.577495563   20.811 19.161   16.544 ~ 5 0
233 2MASS J18043395-2418273 Y*O 18 04 33.9725203973 -24 18 27.444128850 21.443 19.829 18.450   16.216 M0-M0.5V 6 0
234 2MASS J18043439-2420575 Y*O 18 04 34.3872171536 -24 20 57.511634072 22.258 19.253 17.501   15.242 ~ 5 0
235 2MASS J18043492-2422519 Y*O 18 04 34.9238149088 -24 22 51.939067791 20.387 19.543 17.963   15.728 ~ 8 0
236 2MASS J18043495-2422439 Y*O 18 04 34.9517273204 -24 22 43.913061940 22.763 19.528 18.005   15.822 ~ 5 0
237 Cl* NGC 6530 WFI 17674 Y*O 18 04 35.2009471855 -24 23 35.104125253 20.647 19.242 17.718   15.613 ~ 5 0
238 Cl* NGC 6530 WFI 28104 Y*O 18 04 35.3097075558 -24 17 18.764435048   20.416 18.813   16.478 ~ 5 0
239 2MASS J18043533-2427303 Y*O 18 04 35.3333107984 -24 27 30.284836931 19.514 18.220 16.647   14.556 M0-M0.5V 10 0
240 Cl* NGC 6530 WFI 19318 Em* 18 04 36.2287259340 -24 22 38.498144087 18.595 19.890 18.459   16.250 ~ 6 0
241 Cl* NGC 6530 WFI 28698 * 18 04 36.59 -24 16 59.5   22.753 20.467   17.503 ~ 4 0
242 Cl* NGC 6530 WFI 16098 Em* 18 04 37.0301485325 -24 24 31.858500742 20.205 19.137 17.573   15.431 ~ 8 0
243 Cl* NGC 6530 SCB 749 Y*O 18 04 37.108 -24 24 17.44 19.212 17.969 16.686   15.041 ~ 6 0
244 2MASS J18043796-2423161 Y*O 18 04 37.97 -24 23 16.2   20.463 18.717   16.345 ~ 5 0
245 2MASS J18043829-2423177 Y*O 18 04 38.3005131824 -24 23 17.651656339     21.826   18.047 ~ 5 0
246 2MASS J18043836-2422298 Y*O 18 04 38.3714026321 -24 22 29.821684044 22.374 19.734 18.054   15.660 ~ 5 0
247 2MASS J18043890-2427169 Y*O 18 04 38.8842399197 -24 27 16.668068955 20.641 19.131 17.442   15.182 ~ 7 0
248 2MASS J18043896-2425328 Y*O 18 04 38.9360378519 -24 25 33.265383381 21.277 19.314 17.791   15.770 ~ 8 0
249 2MASS J18043893-2416107 Y*O 18 04 38.9387586014 -24 16 10.750728425   18.955 17.567   15.669 K4-K5V 7 0
250 2MASS J18043931-2422345 Y*O 18 04 39.3161005248 -24 22 34.470631502 21.191 19.203 17.619   15.440 K7-M0V 7 0
251 Cl* NGC 6530 WFI 13000 Em* 18 04 39.4348588447 -24 27 09.056942858 20.604 19.385 17.641   15.223 F7-F8V 9 0
252 2MASS J18043943-2426459 Y*O 18 04 39.4454117702 -24 26 45.739571787   20.491 18.757   15.917 ~ 5 0
253 2MASS J18043949-2423143 Y*O 18 04 39.4980937047 -24 23 14.244998253   23.091 20.969   17.633 ~ 5 0
254 2MASS J18043950-2417203 Y*O 18 04 39.51 -24 17 20.4 22.097 19.230 17.645   15.552 ~ 8 0
255 2MASS J18043951-2427240 Y*O 18 04 39.5107633996 -24 27 23.919112250 21.092 19.703 18.052   15.795 ~ 5 0
256 2MASS J18043984-2422264 Y*O 18 04 39.8358081786 -24 22 26.589279404   20.393 18.550   15.896 ~ 5 0
257 Cl* NGC 6530 WFI 16944 Y*O 18 04 40.2520517552 -24 23 58.571218067 19.253 17.857 16.389 15.93 14.427 ~ 7 0
258 2MASS J18044028-2425393 Y*O 18 04 40.2854625158 -24 25 39.532294609   21.785 19.942   17.177 ~ 5 0
259 2MASS J18044045-2426416 Y*O 18 04 40.46 -24 26 41.7 21.099 19.228 17.594   15.430 ~ 6 0
260 2MASS J18044066-2427504 Y*O 18 04 40.6457767361 -24 27 50.576140031   18.072 16.565   14.628 K7-M0V 8 0
261 2MASS J18044088-2420001 Y*O 18 04 40.8587323770 -24 20 00.337995248   19.961 18.268   15.827 K0.5-K2.5V 6 0
262 2MASS J18044168-2427468 Y*O 18 04 41.6571990530 -24 27 46.592794513   21.328 19.644   17.034 ~ 4 0
263 2MASS J18044214-2421341 Y*O 18 04 42.15 -24 21 34.1 20.691 19.759 18.223   15.931 ~ 5 0
264 2MASS J18044223-2422477 Y*O 18 04 42.2186917458 -24 22 47.867799060 22.174 19.601 17.955   15.610 M0-M0.5V 7 0
265 2MASS J18044251-2427057 Y*O 18 04 42.4996250984 -24 27 05.871898651 21.492 19.811 18.153   15.794 ~ 5 0
266 2MASS J18044295-2419019 Y*O 18 04 42.9523435265 -24 19 02.066899880   20.569 18.848   16.386 ~ 5 0
267 2MASS J18044307-2424087 Y*O 18 04 43.0610756126 -24 24 08.884307466   20.060 18.526   16.311 ~ 5 0
268 2MASS J18044310-2424516 Y*O 18 04 43.0989705911 -24 24 51.759882649 20.954 19.020 17.586   15.794 ~ 6 0
269 2MASS J18044404-2419394 Y*O 18 04 44.0337424672 -24 19 39.612600345 19.580 17.711 16.297   14.391 ~ 10 0
270 2MASS J18044413-2414388 Y*O 18 04 44.1125355036 -24 14 38.994074392 19.002 17.458 16.197   14.594 M0-M1V 10 0
271 V* V1801 Sgr Or* 18 04 44.2208884748 -24 15 38.232817199 20.714 19.097 17.588   15.561 M0-M1V 7 0
272 2MASS J18044426-2423572 Y*O 18 04 44.2364894628 -24 23 57.469654649 19.668 18.115 16.652   14.772 ~ 7 0
273 2MASS J18044501-2424258 Y*O 18 04 44.9993455161 -24 24 25.986910221   20.155 18.441   15.772 ~ 5 0
274 V* V1802 Sgr Or* 18 04 45.2222805689 -24 20 58.688788722   17.616 16.185   14.352 ~ 6 0
275 2MASS J18044526-2416575 Y*O 18 04 45.2459151879 -24 16 57.581042466 21.397 18.610 17.109   15.211 M0-M1V 8 0
276 Cl* NGC 6530 WFI 17154 * 18 04 45.30 -24 23 49.9   21.056 19.244   16.801 ~ 3 0
277 2MASS J18044575-2426586 Y*O 18 04 45.76 -24 26 58.7 20.827 20.888 19.127   16.382 ~ 5 0
278 2MASS J18044579-2426331 Y*O 18 04 45.7675504637 -24 26 33.134818947 20.985 20.058 18.475   16.056 ~ 5 0
279 Cl* NGC 6530 WFI 26643 Y*O 18 04 46.0036544740 -24 18 15.235497455   21.249 19.439   16.901 ~ 5 0
280 2MASS J18044636-2428062 Y*O 18 04 46.3443735158 -24 28 06.525101375   20.248 18.507   16.087 K4.5-K5.5V 5 0
281 2MASS J18044676-2426302 Y*O 18 04 46.7485268160 -24 26 30.364130019 20.719 21.119 19.228   16.300 ~ 5 0
282 2MASS J18044742-2427150 Y*O 18 04 47.43 -24 27 15.1 20.344 20.162 18.455   16.111 ~ 6 0
283 Cl* NGC 6530 WFI 20587 * 18 04 47.78 -24 21 53.0 21.700 20.637 18.900   16.330 ~ 4 0
284 2MASS J18044786-2423304 Y*O 18 04 47.8472509141 -24 23 30.632790257 18.114 16.977 15.680   13.928 K1.5-K2.5V 8 0
285 2MASS J18044841-2429040 Y*O 18 04 48.4005344201 -24 29 04.112409873 19.067 17.346 15.901   14.011 ~ 8 0
286 2MASS J18044939-2425460 Y*O 18 04 49.3840674199 -24 25 46.153838922 20.503 22.584 20.251   16.988 ~ 5 0
287 Cl* NGC 6530 WFI 14135 * 18 04 49.41 -24 25 59.7   22.376 20.055   16.980 ~ 3 0
288 2MASS J18045005-2426512 Y*O 18 04 50.0364274823 -24 26 51.402414051 20.800 20.717 18.996   16.462 ~ 5 0
289 [BNM2013] 7.04 1101 * 18 04 50.5318635703 -24 26 15.162316214   20.076 18.306   15.760 ~ 4 0
290 Cl* NGC 6530 WFI 16451 Y*O 18 04 51.52920 -24 24 17.3232   21.437 19.042   15.961 ~ 7 0
291 2MASS J18045161-2425157 Y*O 18 04 51.5984385027 -24 25 15.811919908 19.722 18.654 17.002   14.726 K3.5-K4.5V 10 0
292 2MASS J18045238-2425260 Y*O 18 04 52.3760305859 -24 25 26.720431428   21.677 19.551   16.488 ~ 5 0
293 2MASS J18045287-2425092 Y*O 18 04 52.8661793975 -24 25 09.351850703 20.720 21.532 19.734   16.911 ~ 5 0
294 Cl* NGC 6530 WFI 13902 * 18 04 53.5993924398 -24 26 20.519529407   23.228 20.967   17.433 ~ 3 0
295 2MASS J18045431-2422172 Y*O 18 04 54.3017219435 -24 22 17.513096556   19.633 18.019   15.708 ~ 5 0
296 2MASS J18045493-2426148 Y*O 18 04 54.9226265873 -24 26 14.971475802   23.662 20.593   17.255 ~ 4 0
297 2MASS J18045558-2424358 Y*O 18 04 55.5701633626 -24 24 36.069272832   18.796 17.257   15.071 ~ 6 0
298 Cl* NGC 6530 WFI 26449 * 18 04 56.1154581505 -24 18 26.703195629   22.115 20.023   17.310 ~ 3 0
299 2MASS J18045631-2420363 Y*O 18 04 56.3007401166 -24 20 36.495340423   20.217 18.563   16.156 ~ 4 0
300 2MASS J18045658-2417507 Y*O 18 04 56.5884845627 -24 17 50.958801549   20.427 18.780   16.443 ~ 4 0
301 2MASS J18045673-2424361 Y*O 18 04 56.7195085372 -24 24 36.254878327   19.054 17.368   15.031 ~ 5 0
302 Cl* NGC 6530 WFI 20919 Y*O 18 04 56.790 -24 21 41.46   20.828 18.918   16.120 ~ 4 0
303 2MASS J18045767-2424564 Y*O 18 04 57.6633175737 -24 24 56.645057049   19.208 17.620   15.450 K7.5-M0.5V 7 0
304 Cl* NGC 6530 WFI 18807 Y*O 18 04 57.984 -24 22 56.49   21.604 19.621   16.540 ~ 4 0
305 EM* LkHA 116 Or* 18 04 58.6225393327 -24 24 36.460096273   19.172 17.521   15.020 ~ 6 0
306 IC 5070 HII 20 51.0 +44 22           ~ 181 1
307 NGC 7000 HII 20 58 47 +44 19.8           ~ 365 1

    Equat.    Gal    SGal    Ecl

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2020.12.02-14:23:23

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