The OGLE

project was conducted using the 1-m Swope telescope at Las Campanas Observatory. A single

pixels Loral CCD chip, giving the scale of 0.435 arcsec/pixel was used as the detector. The initial processing of the raw frames was done automatically in near-real time. Details of the standard OGLE processing techniques were described by Udalski et al. (1992).

**Table 1:** Light curve parameters and rectangular coordinates for Cen variables OGLEGC71-211
ID	Field	P	V	A_V	V	X	Y	ID	Field	P	V	A_V	V	X	Y
OGLEGC		day	mean		max	pix	pix	OGLEGC		day	mean		max	pix	pix
71	A	0.3330	14.56	0.17	14.47	126.1	222.2	118	B	0.6768	14.35	0.71	13.98	872.4	1187.5
72	A	1.3461	13.98	0.35	13.84	382.8	276.2	119	B	0.3342	14.53	0.46	14.32	733.8	1269.6
73	A	0.5346	14.26	0.39	14.06	353.2	506.6	120	B	0.7846	14.50	0.59	14.19	550.6	1295.2
74	A	0.7729	14.44	0.65	14.10	611.7	597.1	121	B	0.3159	14.46	0.25	14.35	940.2	1319.4
75	A	0.4932	14.74	0.67	14.40	352.2	1329.1	122	BC	0.8128	14.56	0.49	14.31	867.6	1464.3
76	A	0.4075	14.64	0.42	14.45	793.9	80.5	122	B	0.8131	14.44	0.48	14.18	827.0	1385.7
76	B	0.4075	14.55	0.45	14.35	819.4	1907.1	123	B	1.0253	13.54	0.27	13.47	746.0	1427.7
76	BC	0.4074	14.55	0.40	14.36	863.7	1985.4	124	B	0.8106	14.38	0.72	14.02	656.8	1613.4
77	A	0.5644	14.72	1.00	14.15	729.9	589.8	124	BC	0.8107	14.43	0.72	14.06	699.2	1692.7
78	B	0.3868	14.54	0.49	14.32	1288.7	1848.0	125	B	0.3868	14.52	0.45	14.31	664.7	1686.1
78	A	0.3868	14.57	0.47	14.35	1263.5	21.5	125	BC	0.3867	14.56	0.44	14.35	707.6	1765.4
79	A	0.3380	14.54	0.39	14.36	1384.4	351.1	126	BC	0.5643	14.56	0.75	14.11	798.8	1907.0
80	BC	0.4259	14.57	0.37	14.41	1981.7	1933.3	126	B	0.5647	14.53	0.75	14.16	755.0	1828.4
80	B	0.4264	14.53	0.42	14.33	1937.6	1862.4	127	B	0.7200	14.27	0.54	13.93	814.2	1118.7
80	A	0.4263	14.57	0.43	14.38	1912.2	35.1	128	B	0.5733	14.60	1.20	13.88	1257.5	573.9
80	E	0.4262	14.57	0.43	14.38	108.0	2001.2	129	BC	0.6630	14.48	0.88	13.93	1419.7	744.3
81	A	0.2496	14.61	0.11	14.55	1791.7	128.4	129	B	0.6630	14.52	0.83	13.98	1384.2	669.5
82	A	0.6204	14.54	1.17	13.86	1508.9	130.1	130	B	0.3732	14.56	0.44	14.36	1146.8	672.9
83	A	0.3566	14.60	0.49	14.38	1628.3	131.4	130	BC	0.3732	14.55	0.49	14.30	1182.3	749.3
84	A	0.4221	14.50	0.39	14.33	1922.1	494.0	131	B	0.2381	14.61	0.23	14.50	1282.0	806.9
85	A	0.5032	14.62	1.22	13.87	1645.6	684.4	132	BC	0.4432	14.40	0.43	14.19	1099.7	905.6
86	A	0.3798	14.55	0.49	14.32	1737.5	965.3	132	B	0.4431	14.44	0.43	14.23	1063.0	828.7
87	A	0.7130	14.59	0.93	14.08	1540.0	1187.7	133	B	0.7439	14.45	0.92	13.99	1403.5	864.4
88	BC	0.5675	14.78	0.98	14.21	472.4	332.7	134	B	0.3115	14.63	0.19	14.53	1011.0	1404.3
88	B	0.5675	14.72	0.99	14.16	439.6	251.3	135	B	0.3673	14.59	0.42	14.40	1014.9	749.2
89	BC	0.6304	14.56	1.16	13.88	241.5	393.2	136	B	0.7631	14.46	0.60	14.15	1122.6	1017.3
89	B	0.6305	14.53	1.03	13.94	208.2	310.4	136	BC	0.7628	14.45	0.63	14.13	1160.5	1093.8
90	D	0.7340	14.52	0.77	14.10	2006.9	322.1	137	BC	0.7662	14.26	1.11	13.64	1476.2	1184.7
90	B	0.7340	14.47	0.79	14.05	101.8	473.6	137	B	0.7660	14.33	1.08	13.75	1437.6	1110.3
90	BC	0.7340	14.49	0.80	14.06	136.4	557.1	138	B	0.4066	14.56	0.45	14.35	1078.8	1212.1
91	B	0.8350	14.32	0.59	14.02	378.8	861.6	139	B	0.3672	14.60	0.39	14.42	1263.5	1217.4
92	BC	0.4038	14.52	0.46	14.30	377.3	985.7	140	B	0.3863	14.55	0.44	14.35	1163.0	1329.6
92	B	0.4040	14.45	0.42	14.26	339.9	903.9	140	BC	0.3863	14.55	0.46	14.32	1203.2	1405.7
93	BC	0.5184	14.80	1.05	14.18	437.0	1002.0	141	B	0.6034	14.53	1.04	13.92	1071.6	1337.6
93	B	0.5186	14.72	0.64	14.35	399.5	920.6	142	B	0.3414	14.54	0.13	14.49	1079.0	1355.7
94	BC	0.4215	14.53	0.43	14.33	476.4	1057.9	142	BC	0.3405	14.55	0.25	14.43	1119.4	1432.4
94	B	0.4216	14.46	0.45	14.25	438.5	976.9	143	BC	0.3749	14.56	0.47	14.34	1121.8	1465.3
95	B	0.4881	15.11	0.10	15.07	154.6	834.8	143	B	0.3748	14.57	0.46	14.35	1081.1	1388.6
96	B	0.5028	14.28	0.17	14.19	315.2	1428.3	144	BC	0.3965	14.61	0.49	14.39	1394.6	1500.4
96	BC	0.5024	14.35	0.24	14.24	356.4	1510.0	144	B	0.3965	14.58	0.46	14.38	1353.7	1425.5
97	BC	0.3808	14.43	0.46	14.20	313.0	1538.9	145	B	0.4139	14.46	0.42	14.27	1274.3	1554.0
97	B	0.3808	14.38	0.50	14.13	271.6	1457.0	145	BC	0.4139	14.54	0.40	14.36	1316.2	1629.4
98	BC	0.3748	14.54	0.44	14.35	232.1	1735.8	146	B	0.5109	14.80	1.02	14.19	1108.2	1574.7
98	B	0.3751	14.45	0.40	14.28	189.3	1653.5	146	BC	0.5109	14.86	1.04	14.23	1150.2	1651.1
99	BC	0.6273	14.52	1.06	13.90	373.5	1764.8	147	B	0.5741	14.50	1.17	13.80	1020.9	1623.2
99	B	0.6273	14.43	1.09	13.81	330.6	1683.4	147	BC	0.5742	14.56	1.18	13.84	1063.2	1700.2
100	BC	0.3699	14.52	0.20	14.42	379.3	1800.7	148	B	0.3111	14.60	0.23	14.49	1064.4	1835.1
100	B	0.3699	14.44	0.29	14.30	336.1	1719.4	148	BC	0.3111	14.63	0.24	14.51	1108.3	1911.8
101	B	0.5154	14.67	1.25	13.91	468.1	1825.9	149	B	0.6087	14.50	0.34	14.32	1151.0	1160.7
102	B	0.6349	14.52	1.07	13.91	640.5	450.7	150	B	0.4743	14.60	1.12	13.89	1225.5	771.2
103	B	1.3496	13.63	0.99	13.17	768.1	473.3	151	B	0.3906	14.51	0.42	14.32	1966.5	249.7
104	B	0.5486	14.73	0.73	14.37	531.7	490.4	151	E	0.3906	14.55	0.42	14.35	154.1	389.5
104	BC	0.5486	14.75	1.04	14.17	566.1	571.0	151	BC	0.3908	14.57	0.41	14.38	1999.2	320.7
105	B	0.3042	14.58	0.28	14.44	603.7	618.9	152	B	0.3078	14.55	0.22	14.44	1709.7	328.8
106	BC	0.3059	14.67	0.30	14.53	880.2	753.6	152	BC	0.3078	14.59	0.24	14.48	1742.9	401.6
106	B	0.3059	14.65	0.29	14.50	844.6	675.2	153	E	0.6914	14.55	0.94	14.03	57.1	881.7
107	BC	0.6340	14.55	1.12	13.90	567.8	853.6	153	B	0.6914	14.53	0.93	14.01	1874.5	743.2
107	B	0.6341	14.50	1.10	13.86	531.4	773.1	153	BC	0.6914	14.56	0.92	14.05	1910.6	814.8
108	B	0.3214	14.75	0.45	14.53	885.3	786.9	154	BC	0.5141	14.84	1.17	14.13	1714.0	727.0
109	B	0.6116	14.43	1.00	13.82	907.8	806.2	154	B	0.5141	14.80	1.12	14.14	1678.6	654.0
110	B	0.3920	14.48	0.41	14.29	671.0	913.4	155	B	0.3517	14.59	0.15	14.53	1390.4	1159.6
110	BC	0.3922	14.52	0.41	14.33	708.3	992.9	156	B	1.0066	13.32	0.16	13.24	1509.7	1192.5
111	B	0.4229	14.46	0.37	14.30	684.7	1040.4	157	BC	0.3574	14.59	0.52	14.35	1613.1	1166.1
111	BC	0.4229	14.47	0.30	14.33	722.9	1119.7	157	B	0.3574	14.57	0.52	14.32	1574.6	1092.6
112	B	0.8352	14.41	0.48	14.17	987.9	1080.0	158	B	0.6478	14.54	1.04	13.94	1758.9	1309.8
113	B	0.5885	14.50	0.94	13.94	579.4	1099.3	158	BC	0.6479	14.54	1.02	13.96	1799.1	1382.0
114	B	0.6157	14.73	0.58	14.42	592.6	1113.8	159	B	0.6919	14.53	0.94	14.01	1610.8	1414.7
114	BC	0.6157	14.77	0.62	14.44	631.4	1193.7	159	BC	0.6919	14.52	0.94	14.00	1651.7	1487.9
115	B	0.3524	14.54	0.27	14.40	911.4	1123.2	160	B	0.2806	14.84	0.51	14.59	1533.3	1223.0
116	B	0.6604	13.95	0.44	13.66	807.5	1126.5	161	B	0.9707	13.85	0.11	13.77	1623.9	1157.9
117	B	0.6199	14.48	0.98	13.95	609.4	1161.3	162	BC	0.2681	14.76	0.11	14.70	1700.9	1819.1
117	BC	0.6198	14.47	1.12	13.81	648.5	1241.1	162	B	0.2817	14.71	0.18	14.62	1657.6	1746.3

**Table 1:** continued
ID	Field	P	V	A_V	V	X	Y	ID	Field	P	V	A_V	V	X	Y
OGLEGC		day	mean		max	pix	pix	OGLEGC		day	mean		max	pix	pix
163	BC	0.6155	14.57	1.08	13.94	1749.1	1120.2	189	E	0.4623	14.48	0.38	14.30	394.4	299.2
163	B	0.6156	14.54	1.10	13.93	1710.8	1047.6	190	E	0.3960	14.56	0.43	14.36	458.7	310.6
164	B	2.2743	13.65	0.57	13.41	1716.0	1129.9	190	F	0.3959	14.58	0.45	14.38	580.9	1977.5
165	C	0.6046	14.69	0.96	14.10	45.5	1671.8	191	E	0.3034	14.65	0.22	14.54	192.2	680.3
166	C	0.5929	14.58	1.17	13.90	967.7	1165.6	192	E	0.2996	14.86	0.46	14.64	264.8	1160.3
167	C	0.2850	14.63	0.07	14.60	1300.4	263.0	193	E	0.3358	14.59	0.42	14.38	407.4	1369.0
168	C	0.3319	14.63	0.49	14.39	1114.2	1421.7	194	E	0.3410	14.85	0.47	14.64	249.7	917.1
169	C	0.4743	14.46	0.41	14.25	1058.4	1690.1	195	E	0.3894	14.57	0.43	14.36	448.9	1601.4
170	C	0.7791	14.51	0.60	14.21	1348.2	1765.8	196	BC	0.3191	14.64	0.23	14.53	1949.0	1673.9
171	C	0.5005	15.24	0.09	15.20	1781.5	202.2	196	B	0.3191	14.59	0.23	14.48	1906.6	1602.7
172	F	0.5174	18.10	1.08	17.44	338.8	260.8	196	E	0.3191	14.64	0.22	14.53	79.9	1741.3
172	C	0.5173	18.13	1.01	17.47	2005.1	304.6	197	F	0.3934	14.58	0.45	14.37	1010.1	1864.1
173	D	3.3207	18.56	0.40	18.36	383.8	34.2	197	E	0.3934	14.57	0.44	14.36	888.7	200.5
174	D	0.5799	14.27	0.66	13.91	188.3	904.7	198	E	0.3353	14.73	0.46	14.52	588.4	494.6
175	D	0.3053	14.63	0.32	14.48	943.9	1031.8	199	E	0.5213	14.67	1.21	13.92	688.0	1095.5
176	D	0.7427	14.47	0.74	14.07	696.2	1750.7	200	E	0.6217	14.54	1.10	13.89	643.6	1568.6
177	D	0.3290	14.58	0.19	14.49	1361.2	145.2	201	E	0.8666	14.49	0.35	14.33	1083.7	319.1
178	D	0.4050	14.56	0.44	14.36	1068.4	987.2	201	F	0.8660	14.51	0.37	14.33	1206.0	1981.2
179	D	0.5891	14.55	1.16	13.83	1222.4	1188.2	202	E	0.2954	14.64	0.10	14.60	1245.2	1684.8
180	D	0.6870	14.52	0.93	14.00	1223.0	1394.0	203	E	0.3080	14.64	0.24	14.52	1109.5	2016.9
181	D	0.3213	15.17	0.44	14.96	1682.6	502.6	204	E	0.6083	14.60	1.08	13.98	1529.1	885.9
182	D	0.6023	14.55	1.12	13.88	1686.2	911.2	205	F	0.3302	14.56	0.50	14.32	465.6	1508.7
183	D	0.5234	14.81	0.72	14.39	1900.3	1268.4	206	F	0.7946	14.47	0.56	14.17	745.3	1589.0
183	BC	0.5235	14.81	0.77	14.35	38.7	1504.1	207	F	0.3420	14.60	0.46	14.39	1135.2	1013.6
184	D	0.8413	14.41	0.77	14.03	1825.7	1343.7	208	BC	0.4969	14.72	0.10	14.66	150.7	1485.3
185	D	0.4851	14.35	0.42	14.15	1851.0	1576.8	209	BC	0.3342	14.61	0.14	14.52	860.0	455.1
186	D	0.2539	14.80	0.27	14.66	1880.0	1773.0	210	BC	0.6904	14.23	0.67	13.85	1362.3	1547.2
187	D	0.3862	14.66	0.45	14.46	1756.4	1113.5	211	BC	0.5945	14.62	1.05	14.00	1515.6	957.6
188	D	0.6691	14.51	0.97	13.96	1878.6	1414.0

This paper is based on the data obtained during 1993-5 observing seasons. The cluster was monitored each season for a period spanning about 3 months. Detailed logs of observations can be found in Udalski et al. (1995, 1996). Seven different fields covering a central part of the cluster were observed. In 1993 we monitored fields 5139A, 5139B and 5139C. Field 5139BC, which was monitored in 1994, covered approximately the same part of the cluster as field 5139B. Both fields, 5139B and 5139BC, covered the most central part of the cluster. For field 5139BC we used exposure times by a factor of 2 longer than exposure times used in case of field 5139B. In 1995 season we monitored fields 5139D, 5139E and 5139F. The exact coordinates and location of all seven fields are given in Papers I and II. Most of monitoring was performed through the Johnson V filter. Some exposures in the Kron-Cousins I band were also obtained. However, the existing material does not allow to determine average I-band magnitudes for most of the variables. Therefore we limited our discussion to the V-band data.

The reduction techniques as well as algorithms used for selecting periodic variables are described in Paper I. The profile photometry was extracted with the help of DoPHOT (Schechter et al. 1993).

2. Observations and data reduction