COMMISSION 27 OF THE I. A. U. INFORMATION BULLETIN ON VARIABLE STARS NUMBER 188 Konkoly Observatory Budapest 2 March 1967 Veroffentlichungen der Remeis-Sternwarte Bamberg Astronomisches Institut der Universitat Erlangen-Nurnberg Band VI, Nr. 43 ELEMENTS FOR BV 646 AND BV 752 BV 646 = KZP (0619-54) = CAP -54d1026(8.8m) = HD 44 863(A2) Min = JD 242 8656. 275 + 0.795 101d . E Minima E O - C 2428656.270(S) 0 -0.005 8755.667(S) 125 +0.004 8806.562(S) 189 +0.013 8837.544(S) 228 -0.014 8845.513(S) 238 +0.004 8874.545(S)(1/2) 274.5 +0.015 8892.420(S) 297 0.000 8904.405(S) 312 +0.059 2434252.623(S): 7038.5 +0.030 4281.555(S): 7075 -0.059 4305.492(S): 7105 +0.024 4352.350(S): 7164 -0.028 4364.308(S): 7179 +0.003 4504.297(S): 7355 +0.054 8315.595(1/3) 12148.5 +0.046 8354.483(1/3) 12197.5 -0.036 8407.370 12264 -0.024 8427.324(3/4) 12289 +0.053 8435.271(3/4) 12299 +0.049 8468.249(1/2) 12340.5 +0.030 8701.573 12634 -0.008 8707.526(1/2) 12641.5 -0.018 .572(1/2) 12641.5 +0.028 8709.528 12644 -0.004 .573(3/4) 12644 +0.041 8740.483(1/2) 12683 -0.058 Minima E O-C 2438760.376(3/4) 12708 -0.042 .420 12708 +0.002 8768.360 12718 -0.010 .404(3/4) 12718 +0.034 8772.369(3/4) 12723 +0.024 8786.319(1/3) 12740.5 +0.060 8813.271(1/3) 12774.5 -0.022 8815.270 12777 -0.010 8817.269(1/2) 12779.5 +0.001 8819.268 12782 +0.012 8825.265(1/2) 12789.5 +0.046 9054.566(3/4) 13078 -0.040 9123.425(1/3) 13164.5 +0.043 9125.422(1/2) 13167 +0.052 9150.378(1/3) 13198.5 -0.038 9168.282 13221 -0.023 .327 13221 +0.022 9174.286(1/2) 13228.5 +0.018 9176.279 13231 +0.023 9178.285(1/3) 13233.5 +0.041 9180.281(1/2) 13236 +0.049 (S) = Sonneberg. Many thanks to Miss H. GESSNER for her work. Ampl. 0.95m, with a deep (1/2) secondary minimum, EB BV 752 = CAP -52d8272(7.8m) = HD 136 739(G5), b = +3deg Max = JD 243 8202.145 + 9.285d . E Maxima E O - C 2438202.290 0 +0.145 8229.216 3 -0.784 8230.217 3 +0.217 .265 3 +0.265 8471.538 29 +0.128 .582 29 +0.172 8498.495 32 -0.770 8499.488 32 +0.223 .533 32 +0.268 8500.485 32 +1.220 8553.329 38 -1.646 Maxima E O - C 2438556.329 38 +1.354 8582.245 41 -0.585 .290 41 -0.540 8583.247 41 +0.417 .292 41 +0.462 8584.247 41 +1.417 .292 41 +1.462 8592.247 42 +0.132 8879.449 73 -0.501 8906.355 76 -1.450 .391 76 -1.414 8916.345 77 -0.745 .392 77 -0.698 8917.361 77 +0.271 8964.219 82 +0.704 .265 82 +0.750 8972.238 83 -0.562 9185.474 106 -0.881 .515 106 -0.840 9204.419 108 -0.506 9214.390 109 +0.180 .432 109 +0.222 9232.338 111 -0.442 .382 111 -0.398 .462 111 -0.318 9270.353 115 +0.433 .398 115 +0.478 9271.392 115 +1.472 9287.307 117 -1.183 .353 117 -1.137 9289.310 117 +0.820 .354 117 +0.864 9315.258 120 -1.087 .301 120 -1.043 9345.219 123 +1.019 Ampl. 0.40m, the minimum is about phase 0.5. According to spectral type and galactic latitude the star is probably a Cepheid. Remeis Observatory Bamberg, February 25, 1967 W. STROHMEIER