COMMISSION 27 OF THE I. A. U. INFORMATION BULLETIN ON VARIABLE STARS NUMBER 166 Konkoly Observatory Budapest 21 November 1966 Veroffentlichungen der Remeis-Sternwarte Bamberg Astronomisches Institut der Universitat Erlangen- Nurnberg Band VI, Nr. 38 ELEMENTS FOR TWO SONNEBERG EA-VARIABLES The derivation of periods of variable stars from sky patrol plates often leads to preliminary or even to pseudo-periods because of the special nature of the distribution of exposure times in Julian date, caused by the observing conditions. However, the majority of our announcements has been exact,respectively, has given the correct order of the period, as may be seen from later photoelectric or spectroscopic measurements. Both variables discussed here have been discovered and classified as EA-stars by C. Hoffmeister (Erg. AN 12, Nr.1, 1949). S 4930 =KZP1595=CoD -36d6274 (9.3m) = CAP -36d4216 (9.4m)=BV 471 Min = JD 242 8844. 550 + 1.837 962d . E Minima E O - C 242 8844.568(S)X/ 0 +0.018 8880.505(S) 19.5 +0.115 243 4368.495(S) 3005.5 -0.050 4415.361(S) 3031 -0.052 8407.504 5203 +0.038 8441.442(1/2) 5221.5 -0.026 8442.444 5222 +0.056 8443.443(1/2) 5222.5 +0.137 8489.319 5247.5 +0.063 8500.263(1/2) 5253.5 -0.020 8501.262 5254 +0.060 8524.209(3/4) 5266.5 +0.032 8525.206(1/2) 5267 +0.110 8815.404(1/2) 5425 -0.090 8816.424(3/4) 5425.5 +0.011 8817.404(1/2) 5426 +0.072 8827.362(1/2) 5431.5 -0.079 8828.360 5432 0.000 8886.218(1/2) 5463.5 -0.03? 8887.218 5464 +0.044 9179.412 5623 +0.002 9202.349(1/2) 5635.5 -0.036 9225.267(1/2) 5648 -0.092 Ampl. 0.70m, with a deep secondary minimum (1/2 - 3/4 of the primary minimum). S 4939 = KZP 1645 =CoD -51d5013 (9.8m) = CAP -51d3551 (9.5m)= BV 472 Min = JD 242 8694. 240 + 2.384 082d . E Minima E O - C 242 8694.240(S)x/ 0 0.000 8894.502(S) 84 -0.001 243 4369.480(S) 2380.5 -0.067 4517.270(S) 2442.5 -0.090 4561.257(S) 2461 -0.209 4573.260(S) 2466 -0.126 8440.406 4088 +0.039 .450 4088 +0.083 8471.404 4101 +0.034 8501.306 4113.5 +0.145 8519.255(1/2) 4121 +0.213 8520.252 4121.5 +0.018 8788.472 4234 +0.029 .517 4234 +0.074 8818.402(1/2) 4246.5 +0.158 .446(1/2) 4246.5 +0.202 8824.400(1/2) 4249 +0.196 8825.404 4249.5 +0.008 8880.219 4272.5 -0.011 .267 4272.5 +0.037 8886.218 4275 +0.028 8898.210 4280 +0.099 8899.213 4280.5 -0.090 8905.215 4283 -0.048 9179.413 4398 -0.020 .458 4398 +0.025 9210.306 4411 -0.120 .349 4411 -0.077 Ampl. 0.70m, with a deep secondary minimum (3/4 of the primary minimum). Remeis-Observatory Bamberg, November 15, 1966 W. STROHMEIER x/ (S) = Sonneberg; many thanks to Ing. H. Huth for his friendly support of the work with the Sonneberg plate material.