2000A&A...355..138B

Query : 2000A&A...355..138B

2000A&A...355..138B - Astronomy and Astrophysics, volume 355138-144 (2000/3-1)

CCD photometry in the region of NGC 6994: The remains of an old open cluster.

BASSINO L.P., WALDHAUSEN S. and MARTINEZ R.E.

Abstract (from CDS):

We present the results of BV(RI)KC CCD photometry down to V=21mag in the region of NGC 6994. To our knowledge, no photometry has previously been reported for this object and we find evidences that it is a poor and sparse old open cluster, with a minimum angular diameter of 9 arcmin, i.e. larger than the 3 arcmin originally assigned to it. We obtain a color excess EB–V=0.07±0.02mag by means of the BVIC technique. Based on the theoretical isochrones from VandenBerg (1985) that are in better agreement with our data, we estimate for this cluster a distance from the Sun of 620pc (V0-MV=9±0.25mag) and an age lying within the range of 2-3Gyr, adopting solar metallicity. Thus, the corresponding cluster's Galactocentric distance is 8.1kpc and is placed at about 350pc below the Galactic plane. According to these results, NGC 6994 belongs to the old open cluster population located in the outer disk and at large distances from the Galactic Plane, and must have suffered significant individual dynamical evolution, resulting in mass segregation and evaporation of low mass stars.

Abstract Copyright: ∼

Journal keyword(s): open clusters and associations: general - open clusters and associations: individual: NGC 6994 - techniques: photometric

VizieR on-line data: <Available at CDS (J/A+A/355/138): table1.dat>

Nomenclature: Table 1: Cl* NGC 6994 BWM NNN (Nos 1-144).

Errata: Erratum vol. 356, p. 389 (2000)

Simbad objects: 145

goto View the references in ADS

Number of rows : 145
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* NGC 6994 BWM 100 * 20 58 08.5 -12 35 30   19.98 19.072     ~ 1 0
2 Cl* NGC 6994 BWM 38 * 20 58 39.2268715992 -12 38 10.909645872   17.812 17.060     ~ 1 0
3 Cl* NGC 6994 BWM 68 * 20 58 40.2 -12 39 43   19.249 18.199     ~ 1 0
4 Cl* NGC 6994 BWM 109 * 20 58 40.3 -12 39 35   20.035 19.437     ~ 1 0
5 Cl* NGC 6994 BWM 101 * 20 58 41.1 -12 39 25   19.793 19.119     ~ 1 0
6 Cl* NGC 6994 BWM 66 * 20 58 41.1 -12 39 18   18.743 18.177     ~ 1 0
7 Cl* NGC 6994 BWM 88 * 20 58 41.4 -12 37 58   19.389 18.740     ~ 1 0
8 Cl* NGC 6994 BWM 41 * 20 58 41.6651074512 -12 38 29.402481660   17.14 17.163     ~ 1 0
9 Cl* NGC 6994 BWM 20 * 20 58 41.7427719336 -12 37 45.233822604   16.204 15.698     ~ 1 0
10 Cl* NGC 6994 BWM 37 * 20 58 41.8 -12 35 51   17.864 17.040     ~ 1 0
11 Cl* NGC 6994 BWM 29 * 20 58 42.4836938376 -12 36 07.796851704   17.297 16.538     ~ 1 0
12 Cl* NGC 6994 BWM 14 * 20 58 42.6863157648 -12 40 06.484798632   16.217 14.959     ~ 1 0
13 Cl* NGC 6994 BWM 17 * 20 58 42.9106931832 -12 36 31.964786604   16.072 15.470     ~ 1 0
14 Cl* NGC 6994 BWM 60 * 20 58 43.2 -12 38 03   18.335 17.802     ~ 1 0
15 Cl* NGC 6994 BWM 12 * 20 58 43.2593245785 -12 37 30.957039018   15.241 14.628 14.511   ~ 3 0
16 Cl* NGC 6994 BWM 15 * 20 58 43.9370796408 -12 40 16.399162596   15.71 15.026     ~ 1 0
17 Cl* NGC 6994 BWM 98 * 20 58 44.2 -12 37 04   19.736 19.009     ~ 1 0
18 Cl* NGC 6994 BWM 35 * 20 58 44.6224040088 -12 40 08.177868444   17.526 16.963     ~ 1 0
19 Cl* NGC 6994 BWM 144 * 20 58 44.7 -12 35 58   21.582 20.819     ~ 1 0
20 Cl* NGC 6994 BWM 86 * 20 58 44.9 -12 36 45   19.484 18.635     ~ 1 0
21 Cl* NGC 6994 BWM 61 * 20 58 45.1 -12 35 49   18.441 17.864     ~ 1 0
22 Cl* NGC 6994 BWM 107 * 20 58 45.3 -12 41 03   20.039 19.328     ~ 1 0
23 Cl* NGC 6994 BWM 42 * 20 58 45.8 -12 40 36   18.577 17.190     ~ 1 0
24 Cl* NGC 6994 BWM 73 * 20 58 45.9436912968 -12 34 49.701583596   19.954 18.365     ~ 1 0
25 Cl* NGC 6994 BWM 95 * 20 58 46.0 -12 41 33   19.642 18.991     ~ 1 0
26 Cl* NGC 6994 BWM 43 * 20 58 46.1 -12 34 12   17.863 17.274     ~ 1 0
27 Cl* NGC 6994 BWM 34 * 20 58 46.71 -12 34 44.5   17.705 16.869     ~ 1 0
28 Cl* NGC 6994 BWM 47 * 20 58 46.8937315296 -12 37 31.325362176   18.415 17.383     ~ 1 0
29 Cl* NGC 6994 BWM 33 * 20 58 47.0317822872 -12 40 53.564809368   17.807 16.865     ~ 1 0
30 Cl* NGC 6994 BWM 84 * 20 58 47.2 -12 37 11   19.068 18.586     ~ 1 0
31 Cl* NGC 6994 BWM 70 * 20 58 47.4033895032 -12 35 24.471423168   18.9 18.226     ~ 1 0
32 Cl* NGC 6994 BWM 59 * 20 58 47.6 -12 36 45   18.305 17.708     ~ 1 0
33 Cl* NGC 6994 BWM 31 * 20 58 47.7075755400 -12 36 09.673599564   17.67 16.688     ~ 1 0
34 Cl* NGC 6994 BWM 57 * 20 58 47.8720549584 -12 34 55.744618260   18.281 17.705     ~ 1 0
35 Cl* NGC 6994 BWM 39 * 20 58 48.1 -12 41 15   17.813 17.125     ~ 1 0
36 Cl* NGC 6994 BWM 74 * 20 58 48.2722346496 -12 41 46.546129428   19.81 18.385     ~ 1 0
37 Cl* NGC 6994 BWM 135 * 20 58 48.3 -12 39 30   20.705 19.996     ~ 1 0
38 Cl* NGC 6994 BWM 46 * 20 58 48.5853489792 -12 42 26.425076904   17.834 17.331     ~ 1 0
39 Cl* NGC 6994 BWM 96 * 20 58 48.6 -12 37 18   19.91 18.996     ~ 1 0
40 Cl* NGC 6994 BWM 110 * 20 58 48.8 -12 40 30   20.029 19.462     ~ 1 0
41 Cl* NGC 6994 BWM 30 * 20 58 48.8175810840 -12 41 14.885987424   17.221 16.585     ~ 1 0
42 Cl* NGC 6994 BWM 48 * 20 58 49.2630595704 -12 34 54.660348336   18.753 17.407     ~ 1 0
43 Cl* NGC 6994 BWM 112 * 20 58 49.4 -12 37 07   20.395 19.504     ~ 1 0
44 Cl* NGC 6994 BWM 122 * 20 58 49.6 -12 37 21   20.391 19.698     ~ 1 0
45 Cl* NGC 6994 BWM 90 * 20 58 49.7 -12 37 38   19.498 18.841     ~ 1 0
46 Cl* NGC 6994 BWM 102 * 20 58 50.3 -12 34 33   19.918 19.148     ~ 1 0
47 Cl* NGC 6994 BWM 132 * 20 58 50.3558150136 -12 40 18.413725296   21.364 19.915     ~ 1 0
48 Cl* NGC 6994 BWM 118 * 20 58 50.6 -12 40 26   20.074 19.595     ~ 1 0
49 Cl* NGC 6994 BWM 82 * 20 58 50.9 -12 36 22   19.228 18.529     ~ 1 0
50 Cl* NGC 6994 BWM 50 * 20 58 51.0 -12 41 17   17.521 17.456     ~ 1 0
51 Cl* NGC 6994 BWM 120 * 20 58 51.4 -12 40 42   20.706 19.676     ~ 1 0
52 Cl* NGC 6994 BWM 16 * 20 58 51.6862747104 -12 41 59.973667980   16.116 15.336     ~ 1 0
53 Cl* NGC 6994 BWM 56 * 20 58 51.7 -12 38 46   18.354 17.676     ~ 1 0
54 Cl* NGC 6994 BWM 67 * 20 58 52.2 -12 39 30   19.288 18.192     ~ 1 0
55 Cl* NGC 6994 BWM 79 * 20 58 52.2 -12 42 19   18.987 18.459     ~ 1 0
56 Cl* NGC 6994 BWM 26 * 20 58 52.4 -12 37 11   17.469 16.191     ~ 1 0
57 Cl* NGC 6994 BWM 108 * 20 58 52.6 -12 36 05   20.008 19.386     ~ 1 0
58 Cl* NGC 6994 BWM 13 * 20 58 52.6813740624 -12 35 37.835556036   15.246 14.679     ~ 2 0
59 Cl* NGC 6994 BWM 114 * 20 58 52.7 -12 36 12   20.271 19.535     ~ 1 0
60 Cl* NGC 6994 BWM 23 * 20 58 52.9 -12 39 22   16.938 15.856     ~ 1 0
61 Cl* NGC 6994 BWM 18 * 20 58 53.0 -12 38 58   16.205 15.502     ~ 1 0
62 Cl* NGC 6994 BWM 5 * 20 58 53.3262555792 -12 37 54.404792472   13.31 11.70     ~ 4 0
63 Cl* NGC 6994 BWM 27 * 20 58 53.4416293512 -12 41 10.544503560   16.908 16.314     ~ 1 0
64 Cl* NGC 6994 BWM 7 * 20 58 53.6967993576 -12 34 35.278722336   14.495 13.626     ~ 3 0
65 Cl* NGC 6994 BWM 52 * 20 58 53.7 -12 38 00   18.171 17.533     ~ 1 0
66 Cl* NGC 6994 BWM 28 * 20 58 54.6315270192 -12 37 34.524381180   17.348 16.509     ~ 1 0
67 Cl* NGC 6994 BWM 133 * 20 58 54.6721257408 -12 41 15.916592220   21.427 19.937     ~ 1 0
68 BD-13 5808 * 20 58 54.7978588656 -12 38 03.916080960   12.54 11.86     ~ 3 0
69 Cl* NGC 6994 BWM 105 * 20 58 55.0 -12 42 32   19.99 19.240     ~ 1 0
70 Cl* NGC 6994 BWM 99 * 20 58 55.2 -12 34 26   19.504 19.066     ~ 1 0
71 Cl* NGC 6994 BWM 91 * 20 58 55.3322410680 -12 39 23.248855044   20.215 18.875     ~ 1 0
72 Cl* NGC 6994 BWM 55 * 20 58 56.0944520184 -12 35 02.513189256   18.342 17.662     ~ 1 0
73 Cl* NGC 6994 BWM 106 * 20 58 56.1889748304 -12 38 54.763652832   20.688 19.268     ~ 1 0
74 Cl* NGC 6994 BWM 89 * 20 58 56.2 -12 34 08   19.619 18.786     ~ 1 0
75 Cl* NGC 6994 BWM 128 * 20 58 56.3 -12 39 48   20.783 19.873     ~ 1 0
76 Cl* NGC 6994 BWM 62 * 20 58 56.4692675520 -12 35 59.354335356   18.588 17.985     ~ 1 0
77 Cl* NGC 6994 BWM 97 * 20 58 56.5 -12 35 33   19.617 19.002     ~ 1 0
78 Cl* NGC 6994 BWM 75 * 20 58 56.5185085464 -12 36 29.741496552   19.347 18.399     ~ 1 0
79 Cl* NGC 6994 BWM 140 * 20 58 56.6 -12 42 00   21.639 20.428     ~ 1 0
80 BD-13 5809 * 20 58 56.7717666840 -12 38 30.309833544   11.393 10.297     ~ 10 0
81 Cl* NGC 6994 BWM 8 * 20 58 57.0885119856 -12 34 42.682806660   14.533 13.809     ~ 2 0
82 Cl* NGC 6994 BWM 22 * 20 58 57.2 -12 36 47   16.486 15.834     ~ 1 0
83 Cl* NGC 6994 BWM 76 * 20 58 57.4 -12 38 04   19.989 18.428     ~ 1 0
84 HD 358033 * 20 58 57.6006763128 -12 37 45.708755772   11.806 11.237 10.96 10.646 F5 21 0
85 Cl* NGC 6994 BWM 72 * 20 58 57.6393390192 -12 40 22.626471468   19.597 18.320     ~ 1 0
86 Cl* NGC 6994 BWM 121 * 20 58 57.7 -12 39 46   20.028 19.683     ~ 1 0
87 Cl* NGC 6994 BWM 6 * 20 58 58.1677877811 -12 34 36.375806194   14.43 13.605     ~ 4 0
88 Cl* NGC 6994 BWM 125 * 20 58 58.4 -12 38 55   21.092 19.791     ~ 1 0
89 Cl* NGC 6994 BWM 4 * 20 58 59.6731326720 -12 41 43.810584576   12.67 12.32     ~ 5 0
90 Cl* NGC 6994 BWM 64 * 20 58 59.8 -12 37 35   18.933 18.081     ~ 1 0
91 NGC 6994 err 20 59.0 -12 38           ~ 32 0
92 Cl* NGC 6994 BWM 138 * 20 59 00.0 -12 35 38   21.3 20.289     ~ 1 0
93 Cl* NGC 6994 BWM 141 * 20 59 00.0 -12 34 37   21.188 20.636     ~ 1 0
94 Cl* NGC 6994 BWM 10 * 20 59 00.5 -12 41 28   14.987 14.150     ~ 1 0
95 Cl* NGC 6994 BWM 36 * 20 59 00.7867841592 -12 34 05.814075684   18.108 16.981     ~ 1 0
96 Cl* NGC 6994 BWM 92 * 20 59 01.1 -12 38 53   19.739 18.915     ~ 1 0
97 Cl* NGC 6994 BWM 130 * 20 59 01.4 -12 41 38   20.69 19.883     ~ 1 0
98 Cl* NGC 6994 BWM 115 * 20 59 01.5 -12 36 44   20.342 19.569     ~ 1 0
99 Cl* NGC 6994 BWM 58 * 20 59 01.9687077240 -12 38 32.814535884   18.254 17.707     ~ 1 0
100 Cl* NGC 6994 BWM 131 * 20 59 02.2 -12 41 40   21.308 19.884     ~ 1 0
101 Cl* NGC 6994 BWM 45 * 20 59 02.2 -12 39 27   18.136 17.319     ~ 1 0
102 Cl* NGC 6994 BWM 81 * 20 59 02.4 -12 39 38   19.478 18.518     ~ 1 0
103 Cl* NGC 6994 BWM 113 * 20 59 02.5881059304 -12 41 59.559254952   21.014 19.528     ~ 1 0
104 Cl* NGC 6994 BWM 69 * 20 59 02.6 -12 41 13   18.982 18.200     ~ 1 0
105 Cl* NGC 6994 BWM 40 * 20 59 02.9 -12 39 51   17.809 17.163     ~ 1 0
106 Cl* NGC 6994 BWM 103 * 20 59 03.1 -12 39 38   19.952 19.230     ~ 1 0
107 Cl* NGC 6994 BWM 129 * 20 59 03.9 -12 40 41   20.368 19.874     ~ 1 0
108 Cl* NGC 6994 BWM 21 * 20 59 03.9 -12 38 55   16.375 15.818     ~ 1 0
109 Cl* NGC 6994 BWM 77 * 20 59 04.2167222496 -12 42 16.342163820   19.742 18.431     ~ 1 0
110 Cl* NGC 6994 BWM 51 * 20 59 04.4485799568 -12 37 35.854376664   18.019 17.485     ~ 1 0
111 Cl* NGC 6994 BWM 127 * 20 59 04.5 -12 39 11   21.519 19.852     ~ 1 0
112 Cl* NGC 6994 BWM 78 * 20 59 04.8 -12 39 28   19.047 18.440     ~ 1 0
113 Cl* NGC 6994 BWM 143 * 20 59 05.3 -12 37 54   21.68 20.762     ~ 1 0
114 Cl* NGC 6994 BWM 126 * 20 59 05.5 -12 37 44   20.656 19.807     ~ 1 0
115 Cl* NGC 6994 BWM 137 * 20 59 05.5 -12 36 36   20.905 20.284     ~ 1 0
116 Cl* NGC 6994 BWM 44 * 20 59 05.7 -12 36 05   18.202 17.294     ~ 1 0
117 Cl* NGC 6994 BWM 93 * 20 59 05.8 -12 37 34   19.779 18.955     ~ 1 0
118 Cl* NGC 6994 BWM 54 * 20 59 06.0240610344 -12 40 20.019875016   18.498 17.609     ~ 1 0
119 Cl* NGC 6994 BWM 104 * 20 59 06.1586815248 -12 37 08.834305548   20.482 19.235     ~ 1 0
120 Cl* NGC 6994 BWM 83 * 20 59 06.2 -12 37 41   18.99 18.566     ~ 1 0
121 Cl* NGC 6994 BWM 136 * 20 59 06.3 -12 37 59   21.079 20.273     ~ 1 0
122 Cl* NGC 6994 BWM 111 * 20 59 06.4 -12 36 36   20.056 19.462     ~ 1 0
123 Cl* NGC 6994 BWM 119 * 20 59 06.6 -12 41 50   20.88 19.638     ~ 1 0
124 Cl* NGC 6994 BWM 116 * 20 59 06.6 -12 37 46   20.158 19.588     ~ 1 0
125 Cl* NGC 6994 BWM 19 * 20 59 06.6361348512 -12 34 39.650825856   16.59 15.616     ~ 2 0
126 Cl* NGC 6994 BWM 11 * 20 59 06.7407605712 -12 35 28.973461020   14.95 14.303     ~ 4 0
127 Cl* NGC 6994 BWM 24 * 20 59 07.0 -12 40 42   16.813 16.011     ~ 1 0
128 Cl* NGC 6994 BWM 94 * 20 59 07.2 -12 41 50   19.534 18.976     ~ 1 0
129 Cl* NGC 6994 BWM 134 * 20 59 07.2 -12 36 34   20.515 19.939     ~ 1 0
130 Cl* NGC 6994 BWM 71 * 20 59 07.3 -12 36 00   19.124 18.318     ~ 1 0
131 Cl* NGC 6994 BWM 85 * 20 59 07.7341126320 -12 40 48.298601640   19.51 18.598     ~ 1 0
132 Cl* NGC 6994 BWM 142 * 20 59 07.8 -12 37 47   21.161 20.761     ~ 1 0
133 Cl* NGC 6994 BWM 32 * 20 59 08.2 -12 38 21   17.44 16.766     ~ 1 0
134 Cl* NGC 6994 BWM 139 * 20 59 08.3 -12 35 11   21.099 20.310     ~ 1 0
135 Cl* NGC 6994 BWM 63 * 20 59 09.0410229048 -12 40 35.814224316   18.814 18.067     ~ 1 0
136 Cl* NGC 6994 BWM 123 * 20 59 09.5 -12 35 01   20.538 19.734     ~ 1 0
137 Cl* NGC 6994 BWM 117 * 20 59 09.7 -12 41 06   20.868 19.591     ~ 1 0
138 Cl* NGC 6994 BWM 49 * 20 59 09.9063221856 -12 38 27.688310664   18.057 17.433     ~ 1 0
139 Cl* NGC 6994 BWM 25 * 20 59 10.13 -12 36 38.9   16.691 16.092     ~ 1 0
140 Cl* NGC 6994 BWM 80 * 20 59 10.9 -12 38 13   20.066 18.482     ~ 1 0
141 Cl* NGC 6994 BWM 53 * 20 59 11.1 -12 40 53   18.336 17.534     ~ 1 0
142 Cl* NGC 6994 BWM 124 * 20 59 11.4 -12 36 12   20.751 19.740     ~ 1 0
143 Cl* NGC 6994 BWM 87 * 20 59 11.8 -12 38 39   20.106 18.660     ~ 1 0
144 Cl* NGC 6994 BWM 65 * 20 59 11.9 -12 39 50   18.749 18.088     ~ 1 0
145 Cl* NGC 6994 BWM 9 * 20 59 13.1341491364 -12 40 13.836448020   14.748 14.047     ~ 3 0

To bookmark this query, right click on this link: simbad:objects in 2000A&A...355..138B and select 'bookmark this link' or equivalent in the popup menu