NGC 6715 / C1851-305 / Messier 54 (Updated November 2010) RA: 18:55:03.33 DEC: -30:28:47.5 (J2000) ============================================================ Bytes Format Explanation 1-8 A8 Star ID 10-32 A11,1x,A11 Position 34-35 A2 Units for position R0 denotes RA, DEC in the J2000 coordinates R5 denotes RA, DEC in the 1950 coordinates XA denotes X, Y in arcseconds XP denotes X, Y in pixels 37-44 F8.4 Period (days) 46-51 F6.3 Mean magnitude (or maximum magnitude if "max" is indicated in the remarks column) 53-57 F5.3 Light amplitude (range of variability) 59 A1 Colour for mean magnitude and amplitude e.g. B, V, R, I or P (for photographic). 61-65 A5 Type of variable (draft 2006 GCVS classifications) NV denotes not variable 67-80 A19 Notes and Remarks (f denotes field star) "--" or "----" indicates no data available ========================================================================= ID Position Period ampl C Type Notes/ RA/X Dec/Y Units Remarks ========================================================================= 1 18:55:09.75 -30:28:36.5 R0 1.3476 17.24 0.94 V CW 2 18:55:02.91 -30:27:15.6 R0 1.0945 17.34 0.89 V CW 3 18:55:02.19 -30:25:46.5 R0 0.5726 18.19 0.76 V RR0 4 18:54:58.92 -30:23:35.2 R0 0.4801 18.32 0.71 V RR0 5 18:54:53.24 -30:28:01.2 R0 0.5791 18.11 0.95 V RR0 6 18:55:19.37 -30:31:43.5 R0 0.5384 18.03 0.71 V RR0 7 18:55:07.45 -30:31:23.8 R0 0.5944 18.21 0.74 V RR0 8 18:55:31.22 -30:34:16.4 R0 ---- 16.20 1.0 P E? f,Ros 9 18:54:57.87 -30:39:20.8 R0 ---- 17.25 0.9 P RR? f,Ros 10 18:55:11.98 -30:37:36.2 R0 ---- 17.25 0.7 P RR? f,Ros 11 18:54:54.81 -30:46:55.6 R0 ---- -- -- ? f,Ros 12 18:54:46.07 -30:32:52.4 R0 0.3226 16.71 0.34 V RR1 f 13 18:54:45.07 -30:21:13.2 R0 ---- 17.00 1.0 P RR f,Ros 14 18:55:21.86 -30:25:14.4 R0 0.4807 -- -- V RR0 15 18:55:13.29 -30:29:46.7 R0 0.5869 18.21 0.93 V RR0 16 18:55:08.90 -30:43:53.8 R0 ---- -- -- ? f,Ros 17 18:55:56.90 -30:36:03.8 R0 0.4660 17.10 1.0 P RR0 f,Ros 18 18:55:42.67 -30:22:27.0 R0 ---- 16.85 0.7 P RR f,Ros 19 18:53:25.71 -30:31:45.2 R0 ---- -- -- ? f,Ros 20 18:55:11.6 -30:27:08.0 R0 ---- 18.34 -- V NV LS 21 18:55:09.40 -30:32:32.7 R0 ---- -- -- NV? LS,Note 22 18:55:02.47 -30:31:31.4 R0 ---- 16.52 -- V NV LS 23 18:55:30.73 -30:25:31.0 R0 0.5177 18.230 1.112 V RR0 LS 24 18:55:38.24 -30:27:51.2 R0 ---- 16.5 -- V NV f,Ros 25 18:54:58.30 -30:27:34.3 R0 ---- 15.39 0.83 V SR LS,Note 26 18:55:17.75 -30:31:13.8 R0 ---- -- -- NV? LS,Note 27 18:55:19.39 -30:33:49.6 R0 ---- 17.74 -- V NV LS 28 18:55:08.64 -30:26:02.9 R0 0.5088 18.08 1.18 V RR0 Sgr 29 18:54:53.44 -30:29:32.8 R0 0.5897 18.25 0.72 V RR0 30 18:55:03.48 -30:27:25.5 R0 0.5739 18.24 0.87 V RR0 31 18:54:55.76 -30:29:54.7 R0 0.6466 18.18 0.40 V RR0 32 18:54:49.53 -30:27:44.3 R0 0.5191 18.08 0.90 V RR0 33 18:55:09.38 -30:30:26.3 R0 0.4930 18.13 0.77 V RR0 34 18:54:59.37 -30:31:19.1 R0 0.5034 18.16 1.14 V RR0 35 18:54:57.07 -30:27:54.2 R0 0.5267 18.20 1.09 V RR0 36 18:55:13.28 -30:27:49.6 R0 0.5990 18.16 0.60 V RR0 37 18:55:06.82 -30:29:26.8 R0 0.6275 18.21 0.48 V RR0 38 18:54:58.20 -30:28:11.0 R0 0.6111 18.04 0.43 V RR0 39 18:54:55.76 -30:29:51.2 R0 0.5996 18.19 0.76 V RR0 40 18:54:59.60 -30:30:36.8 R0 0.5864 -- -- V RR0 41 18:55:13.25 -30:27:55.7 R0 0.6177 18.15 1.04 V RR0 42 18:55:08.80 -30:27:46.5 R0 0.3264 18.19 0.49 V RR1 43 18:54:51.61 -30:27:57.4 R0 0.5929 18.20 0.80 V RR0 44 18:55:04.52 -30:30:05.3 R0 0.6207 18.25 0.39 V RR0 45 18:55:12.87 -30:30:28.8 R0 0.4888 18.24 1.02 V RR0 46 18:55:00.72 -30:29:25.2 R0 0.6048 18.08 0.56 V RR0 Sgr 47 18:55:01.03 -30:27:11.6 R0 0.5070 18.22 0.70 V RR0 48 18:55:23.17 -30:29:21.0 R0 0.6870 18.11 0.67 V RR0 49 18:54:56.28 -30:31:01.5 R0 0.3313 18.03 0.38 V RR1 50 18:55:11.32 -30:27:40.8 R0 0.5636 18.14 0.61 V RR0 Sgr 51 18:55:19.90 -30:25:18.4 R0 0.6054 18.29 0.54 V RR0 52 18:55:10.63 -30:29:31.3 R0 0.6386 -- -- V RR0 53 18:54:58.84 -30:30:02.3 R0 ---- 18.13 -- V NV LS 54 18:54:53.84 -30:23:26.3 R0 0.5734 -- -- V RR0 55 18:55:15.41 -30:32:02.5 R0 0.4261 18.64 1.13 V RR0 f 56 18:54:38.15 -30:31:01.0 R0 0.3677 18.16 0.38 V RR1 57 18:55:26.05 -30:29:04.2 R0 0.5466 18.19 1.00 V RR0 58 18:55:09.25 -30:24:25.2 R0 0.5487 18.22 0.72 V RR0 59 18:54:47.62 -30:33:04.7 R0 0.5994 18.20 0.66 V RR0 60 18:54:43.67 -30:32:52.6 R0 0.5798 18.25 0.60 V RR0 61 18:54:59.96 -30:27:01.4 R0 0.6039 18.21 0.76 V RR0 62 18:54:56.14 -30:27:14.4 R0 0.6136 18.17 0.26 V RR0 63 18:55:00.91 -30:30:58.3 R0 0.5901 18.26 0.54 V RR0 Sgr 64 18:55:24.95 -30:36:48.0 R0 ---- 17.10 0.8 P SR f,Ros 65 18:55:21.70 -30:25:52.0 R0 0.5748 17.61 0.67 V RR0 f 66 18:55:20.81 -30:25:11.1 R0 ---- -- -- V SR 67 18:55:03.38 -30:27:36.7 R0 0.5900 18.17 0.68 V RR0 68 18:54:13.15 -30:23:36.4 R0 0.5414 17.25 0.9 P RR0 f,Ros 69 18:54:37.53 -30:24:18.5 R0 0.6798 17.89 0.66 V RR0 f 70 18:55:14.69 -30:35:42.0 R0 ---- 17.10 0.6 P RR f,Ros 71 18:55:00.80 -30:27:02.2 R0 ---- -- -- V SR 72 18:54:58.56 -30:26:19.8 R0 ---- 15.93 -- V NV LS 73 18:55:04.35 -30:27:43.4 R0 ---- -- -- RR? LS,Note 74 18:55:12.66 -30:30:59.9 R0 0.2889 18.14 0.51 V RR1 Sgr 75 18:55:04.68 -30:27:25.6 R0 0.5846 17.70 0.43 V RR0 76 18:54:55.78 -30:29:09.9 R0 0.7065 18.09 0.60 V RR0 77 18:54:55.09 -30:29:30.8 R0 0.5769 18.17 0.70 V RR0 78 18:55:09.19 -30:28:55.4 R0 0.4020 18.10 0.43 V RR1 79 18:55:06.0 -30:29:29.0 R0 ---- -- -- RR? LS,Note 80 18:55:08.66 -30:29:31.4 R0 0.6394 -- -- V RR0 81 18:55:07.0 -30:28:32.0 R0 ---- -- -- RR? LS,Note 82 18:55:00.02 -30:29:31.2 R0 0.5879 18.15 0.71 V RR0 83 18:54:53.97 -30:33:24.8 R0 0.5783 18.19 1.08 V RR0 Sgr 84 18:55:02.82 -30:29:35.9 R0 0.5997 -- -- V RR0 85 18:55:02.04 -30:30:16.3 R0 0.5213 18.14 0.87 V RR0 86 18:55:08.56 -30:29:30.5 R0 0.5837 18.147 0.885 V RR0 LS 87 18:55:11.35 -30:29:10.7 R0 0.5547 -- -- V RR0 88 18:54:51.56 -30:25:48.3 R0 0.4937 18.28 0.67 V RR0 89 18:54:55.9 -30:25:16.0 R0 0.6108 18.255 0.823 V RR0 LS 90 18:55:07.95 -30:26:10.2 R0 0.6131 18.165 0.614 V RR0 LS 91 18:55:26.85 -30:24:50.6 R0 0.4098 17.137 2.65 V E? max,LS 92 18:55:06.06 -30:28:38.4 R0 0.4841 17.85 0.93 V RR0 f,blend 93 18:55:01.94 -30:25:41.4 R0 0.5585 17.45 0.62 V RR0 f 94 18:55:10.20 -30:24:38.5 R0 0.6559 18.23 0.27 V RR0 95 18:55:01.4 -30:29:59.0 R0 0.5884 18.007 0.794 V RR0 LS 96 18:55:25.10 -30:34:19.6 R0 0.5585 18.11 0.98 V RR0 97 18:55:05.60 -30:27:59.5 R0 0.3367 18.21 0.45 V RR1 98 18:55:10.78 -30:29:12.7 R0 0.6201 -- -- V RR0 99 18:54:57.10 -30:25:44.2 R0 0.3466 18.26 0.23 V EC f 100 18:55:02.2 -30:28:07.0 R0 ---- 18.223 -- V NV? LS,Note 101 18:54:43.55 -30:28:55.4 R0 ---- 16.54 0.70 V L Note 102 18:55:14.63 -30:33:12.4 R0 ---- 16.95 0.34 V L Note 103 18:54:57.21 -30:28:54.2 R0 ---- 17.74 1.12 V L Note 104 18:54:58.78 -30:25:35.0 R0 ---- 15.98 0.53 V L Note 105 18:54:54.14 -30:28:09.7 R0 ---- 16.08 0.27 V L Note 106 18:55:02.13 -30:33:09.3 R0 ---- 15.56 0.22 V L Note 107 18:55:04.93 -30:28:49.4 R0 ---- 16.22 1.25 V L Note 108 18:55:21.39 -30:25:20.3 R0 ---- 16.12 0.20 V L? LS 109 18:55:13.45 -30:26:42.3 R0 ---- 15.27 0.12 V L Note 110 18:55:14.39 -30:28:12.9 R0 ---- 15.19 0.12 V L Note 111 18:55:01.18 -30:28:27.4 R0 ---- 15.39 0.67 V L? LS 112 18:55:02.0 -30:28:35.0 R0 ---- 15.33 0.60 V L? LS 113 18:54:52.21 -30:29:12.8 R0 ---- 16.12 0.12 V L Note 114 18:54:54.36 -30:33:43.0 R0 ---- 15.35 0.07 V L Note 115 18:54:59.47 -30:28:19.3 R0 ---- 15.17 o.12 V L Note 116 18:55:09.21 -30:25:34.4 R0 0.4096 19.47 0.73 V E 117 18:55:20.00 -30:25:44.1 R0 0.3288 19.03 0.26 V EC f 118 18:55:23.31 -30:31:04.4 R0 0.6277 18.35 0.34 V RR0 119 18:55:18.48 -30:31:49.3 R0 0.6366 15.84 0.35 V RR0 f 120 18:55:10.83 -30:27:47.9 R0 0.7357 18.08 0.29 V RR0 121 18:55:10.38 -30:27:48.7 R0 0.7487 17.67 0.24 V RR0 f 122 18:55:09.80 -30:27:31.8 R0 0.6539 18.22 0.31 V RR0 123 18:55:03.15 -30:28:04.8 R0 0.5142 18.32 1.17 V RR0 Sgr 124 18:55:09.07 -30:29:44.3 R0 0.5823 17.98 0.52 V RR0 125 18:55:06.09 -30:27:48.9 R0 0.7341 18.05 0.41 V RR0 126 18:55:04.57 -30:27:42.3 R0 0.3517 18.12 0.29 V RR1 127 18:55:02.98 -30:27:52.3 R0 0.5912 18.08 0.38 V RR0 128 18:55:00.62 -30:28:35.1 R0 0.6810 17.22 0.31 V RR0 f,blend 129 18:54:55.20 -30:29:09.3 R0 0.6027 17.97 0.42 V RR0 130 18:55:00.16 -30:28:12.9 R0 0.6765 18.36 0.29 V RR0 131 18:54:55.13 -30:31:04.6 R0 0.6336 18.15 0.32 V RR0 132 18:55:01.09 -30:28:54.9 R0 0.6607 17.45 0.44 V RR0 f,blend 133 18:55:00.39 -30:29:24.2 R0 0.3648 18.32 0.41 V RR1 134 18:55:08.75 -30:23:60.0 R0 0.9095 19.10 0.43 V EC 135 18:54:35.59 -30:33:54.1 R0 0.3191 17.82 0.13 V EC f 136 18:54:48.93 -30:29:45.7 R0 0.6974 18.12 0.27 V RR0 137 18:55:06.09 -30:27:59.8 R0 0.7773 18.03 0.19 V RR0 138 18:55:05.99 -30:28:22.1 R0 0.3116 18.19 0.47 V RR1 139 18:55:03.95 -30:29:24.6 R0 0.4040 18.03 0.48 V RR0 Sgr 140 18:55:02.47 -30:30:00.2 R0 0.7479 18.10 0.30 V RR0 141 18:55:01.25 -30:29:19.3 R0 0.3339 18.02 0.30 V RR1 Sgr 142 18:54:59.63 -30:28:51.0 R0 0.2978 17.60 0.28 V RR1 f,blend 143 18:54:57.40 -30:29:43.5 R0 0.6739 18.13 0.13 V RR0 144 18:55:12.10 -30:30:04.5 R0 0.7216 19.27 0.34 V EC 145 18:55:06.42 -30:28:26.6 R0 0.5267 18.07 0.25 V ? 146 18:54:34.79 -30:34:30.1 R0 0.0653 19.51 0.32 V SXPHE f 147 18:55:04.85 -30:28:49.2 R0 1.1154 17.29 0.19 V ? 148 18:55:02.83 -30:29:26.5 R0 0.2670 18.12 0.19 V RR1 149 18:54:58.65 -30:29:57.2 R0 0.0808 18.69 0.18 V SXPHE f 150 18:54:33.58 -30:29:16.9 R0 0.0616 20.48 0.61 V SXPHE 151 18:54:51.82 -30:28:32.1 R0 0.3433 -- -- V RR1 152 18:55:06.25 -30:28:45.2 R0 0.3142 --- -- V RR1 153 18:55:00.68 -30:27:56.9 R0 ---- -- -- V L 154 18:55:00.93 -30:28:08.0 R0 ---- -- -- V L 155 18:55:00.08 -30:30:33.5 R0 ---- -- -- V L 156 18:54:57.72 -30:25:57.4 R0 ---- -- -- V L 157 18:55:21.50 -30:25:20.5 R0 0.4556 -- -- V RR1 158 18:54:58.30 -30:30:27.1 R0 0.6161 -- -- V RR0 159 18:55:03.58 -30:29:55.4 R0 0.6590 -- -- V RR0 160 18:55:03.92 -30:28:30.1 R0 0.6195 -- -- V RR0 161 18:55:06.83 -30:28:46.7 R0 0.3963 -- -- V RR1 162 18:55:03.75 -30:29:30.3 R0 0.5955 -- -- V RR0 163 18:55:05.04 -30:29:29.6 R0 0.5894 -- -- V RR0 164 18:55:01.71 -30:29:20.9 R0 0.5171 -- -- V RR0 165 18:55:05.97 -30:29:14.9 R0 0.6653 -- -- V RR0 166 18:54:44.42 -30:24:28.7 R0 0.3325 -- -- V RR1 167 18:54:59.85 -30:23:56.0 R0 0.3328 -- -- V RR1 168 18:55:07.13 -30:29:05.0 R0 0.5567 -- -- V RR0 169 18:55:04.68 -30:29:02.7 R0 0.3979 -- -- V RR1 170 18:55:24.73 -30:24:39.7 R0 0.5152 -- -- V RR0 171 18:55:04.26 -30:28:18.4 R0 0.5680 -- -- V RR0 172 18:55:06.13 -30:29:00.8 R0 0.3029 -- -- V RR1 173 18:55:02.48 -30:29:00.2 R0 0.3616 -- -- V RR1 174 18:55:05.89 -30:29:29.9 R0 0.2975 -- -- V RR1 175 18:55:04.89 -30:28:19.0 R0 0.5895 -- -- V RR0 176 18:55:06.83 -30:27:57.8 R0 0.5994 -- -- V RR0 177 18:55:01.15 -30:28:30.6 R0 0.4880 -- -- V RR0 178 18:55:01.64 -30:28:32.4 R0 0.6566 -- -- V RR0 179 18:55:01.24 -30:28:35.1 R0 0.5716 -- -- V RR0 180 18:55:03.46 -30:29:14.5 R0 0.5319 -- -- V RR0 181 18:55:02.40 -30:28:34.3 R0 0.5072 -- -- V RR0 182 18:55:01.59 -30:28:51.7 R0 0.6857 -- -- V RR0 183 18:55:04.83 -30:29:45.9 R0 0.2695 -- -- V RR1 184 18:55:01.42 -30:29:22.0 R0 0.4806 -- -- V RR1 185 18:55:01.67 -30:28:26.5 R0 0.3272 -- -- V RR1 186 18:54:59.85 -30:28:35.4 R0 0.4715 -- -- V RR1 187 18:55:02.61 -30:29:08.8 R0 0.5534 -- -- V RR0 188 18:55:03.16 -30:29:19.7 R0 0.5622 -- -- V RR0 189 18:55:14.97 -30:33:14.0 R0 0.3321 -- -- V RR1 190 18:55:20.14 -30:26:46.0 R0 0.7535 -- -- V RR0 191 18:55:04.35 -30:29:10.4 R0 0.3768 -- -- V RR1 192 18:55:01.99 -30:29:02.7 R0 0.3987 -- -- V RR1 193 18:55:05.26 -30:28:47.4 R0 0.3081 -- -- V RR1 194 18:55:02.72 -30:29:14.4 R0 0.5741 -- -- V RR0 195 18:55:07.94 -30:30:16.2 R0 0.7083 -- -- V E 196 18:55:08.02 -30:25:03.2 R0 0.3521 -- -- V RR1 197 18:55:27.01 -30:27:35.0 R0 0.3520 -- -- V RR1 198 18:55:17.99 -30:27:48.8 R0 0.3527 -- -- V RR1 199 18:55:07.30 -30:25:50.3 R0 0.3541 -- -- V RR1 200 18:55:01.42 -30:25:36.5 R0 0.3511 -- -- V RR1 201 18:55:02.70 -30:25:39.8 R0 0.5587 -- -- V RR0 202 18:55:03.00 -30:24:49.8 R0 0.5052 -- -- V RR0 203 18:55:14.54 -30:28:13.1 R0 0.5617 -- -- V RR0 204 18:54:56.47 -30:27:54.4 R0 0.5047 -- -- V RR0 205 18:55:05.91 -30:30:04.9 R0 0.5029 -- -- V RR0 206 18:55:00.64 -30:28:39.5 R0 0.5243 -- -- V RR0 207 18:54:54.46 -30:33:43.1 R0 0.5058 -- -- V RR0 208 18:54:48.82 -30:31:29.7 R0 0.5002 -- -- V RR0 209 18:54:49.70 -30:31:33.6 R0 0.5032 -- -- V RR0 210 18:55:09.64 -30:29:05.3 R0 0.5030 -- -- V RR0 211 18:55:05.83 -30:28:23.2 R0 1.3238 -- -- V ? ======================================================================= Supplementary Notes and References NGC 6715 (M54) resides at the centre of the Sagittarius dwarf galaxy. According to Sollima et al. (2010, MNRAS 406, 329), it probably formed independently and later plunged into the Sgr nucleus. Sollima et al. concluded that some of the variables in the above table are probable Sgr galaxy members; these are indicated by "Sgr" in the Notes/Remarks column. The data listed in the above table are from Sollima et al. (2010, MNRAS 406, 329) unless they are indicated by "Ros" or "LS" in the Notes/Remarks column, in which case the RA and Dec are the values listed by Samus et al. (2009, PASP 121, 1378) and the remaining data are either from Rosino & Nobili (1958, Mem. Soc. Astron. Italiana 29, 413) or from Layden & Sarajedini (2000, AJ 119, 1760) The variables studied only by Rosino & Nobili: V8, 9, 10, 11, 13, 16, 17, 18, 19, 24, 64, 68, 70 were all outside the fields observed by Layden & Sarajedini and by Sollima et al. They are all considered to be field stars because their distances from the cluster centre exceed the tidal radius. ============================================ Notes on individual stars V21, V26: Layden & Sarajedini (2000) found that the positions of these stars on Rosino & Nobili's finder charts did not match their published x,y coordinates which were later listed by Sawyer Hogg (1973) in her 3rd catalog. They checked several candidate variables in the regions in question and found no evidence for variability. Rosino & Nobili had already noted that V21 might be constant and we assume that V26 might be constant as well. The RA and dec listed in the above table for these stars were derived by Samus et al. (2009) and were based on the finder charts of Rosino & Nobili. V25: Rosino & Nobili (1959) classified V25 as semiregular and derived an approximate period of 100 days. They concluded that it was a cluster member because its absolute magnitude was comparable to similar stars in other globular clusters. V73, V79, V81: Rosino & Nobili (1959) noted that it was difficult to estimate the magnitudes for these three stars, but neverthelss concluded that they were all variable. Layden & Sarajedini (2000) had difficulty locating them from the x,y coordinates that were published by Rosino & Nobili and later listed by Sawyer Hogg (1973) in her 3rd catalog. However, they checked several candidate stars in the regions in question and in each case they detected one candidate variable, but were unable to derive any acceptable periods. They marked the positions of each of these candidate variables on a finder chart. Based on the mean magnitudes published by Rosino & Nobili, it appears that these stars are RR Lyrae type. The RA and dec listed in the above table are the values published by Samus et al. (2009), but these should be used in conjunction with Layden & Sarajedini's finder charts to identify the variables. V100: Layden & Sarajedini derived a period of 0.96473 for this star and classified it as a possible RR0 variable, but Sollima et al. found it to be non-variable so we have tentatively classified it as NV. V101-V107, V109-V110, V113-V115: These stars are long period variables that were first detected by Layden & Sarajedini (2000) and later confirmed by Sollima et al. (2010). The RA and dec listed in the above table are from Sollima et al. and the mean magnitudes and amplitudes are from Layden & Sarajedini because Sollima et al. were unable to obtain calibrated photometry for these stars. ================================================================= Discovery of the variable stars in M54: V1-28 Rosino (1952, Bologna Publ V, No. 18 = Mem. Soc. Astron. Italiana, 23, p49) with x,y (arcsec) coordinates and ID charts V29-82 Rosino & Nobili (1959, Univ of Padova Asiago Contr 97= 1958, Mem. Soc. Astron. Italiana, 29, No.4) with x,y (arcsec) coordinates and ID charts. Also all the variables from V1-28 (with the exception of V11, 16 and 19) were labelled on the charts. V83-117 Layden & Sarajedini (2000, AJ 119, 1760) with X,Y (pixel) coordinates. They also published small finder charts (field 20 by 20 arcsec) for each of the variables they studied. These authors also announced three candidate variables which they numbered SV1-3. Their study was based on VI photometry. V118-211 Sollima et al. (2010, MNRAS 406, 329) with RA and dec. They also published magnitudes, amplitudes and colours based on BVI photometry for the variables in their investigation and indicated which RR Lyrae variables were probably in the field of the Sagittarius dwarf galaxy and which ones were Blazhko variables. ---------------------------- Montiel & Mighell (2010, AJ 140, 1500) announced 50 RR Lyrae candidates based on an analysis of archival HST WFPC2 data. They assigned numbers VC1 to VC50 to their candidates. The HST observations were obtained over an interval of a few hours on one day and were not sufficient for period determination. However, a comparison with the known RR Lyrae variables indicates that 14 of their candidates are known RR Lyrae variables: VC2=V127, VC11=V162, VC12=V163, VC13=V95, VC14=V164, VC15=V142, VC17=V129, VC28=V181, VC34=V160, VC44=V46, VC45=V148, VC46=V192, VC47=V76. The declinations listed in the above table are on average 1 arcsec south of the decs listed by Montiel & Mighell and the RAs are approximately 0.02 seconds (of time) east. ===============================================================