COMMISSIONS 27 AND 42 OF THE IAU INFORMATION BULLETIN ON VARIABLE STARS Number 3880 Konkoly Observatory Budapest 17 May 1993 HU ISSN 0374 - 0676 UBVR OBSERVATIONS OF THE DOUBLE-MODE CEPHEID AS Cas Recently we (Berdnikov, 1992) have decomposited available UBVRI observations of all double-mode Cepheids into two oscillations. It was also pointed out that the number of existing observations is not sufficient for certain investigation of light curve variations for the majority of these stars. Therefore we continue to carry out the observations of all accessible double-mode Cepheids. In Table 1 we present photoelectric BVR observations of AS Cas. All measurements were obtained in 1992 August-September at the Mt. Maidanak Observatory of the Tashkent Astronomical Institute. The 60-cm reflector was used and 184 observations were carried out; the accuracy of the individual data is near 0.015m in all filters. Table 1 JD hel V B-V V-R JD hel V B-V V-R 2440000+ 2440000+ 8852.4116 12.255 1.355 1.243 8874.3349 12.354 1.558 1.198 8854.3561 12.430 1.359 1.289 8874.4113 12.442 1.451 1.278 8854.4076 12.426 1.446 1.278 8874.4638 12.432 1.472 1.280 8854.4504 12.463 1.276 1.288 8875.3076 12.377 1.495 1.293 8866.3932 12.466 1.497 1.322 8875.3482 12.343 1.405 1.240 8856.4611 12.440 1.531 1.285 8875.3950 12.346 1.417 1.241 8858.3016 12.057 1.349 1.161 8876.2090 12.194 1.344 1.221 8858.3517 12.132 1.336 1.220 8876.2741 12.119 1.383 1.161 8858.3768 12.126 1.347 1.221 8876.3135 12.139 1.301 1.189 8858.4564 12.158 1.413 1.202 8876.3426 12.115 1.304 1.171 8860.2206 12.349 1.413 1.273 8876.4080 12.101 1.332 1.219 8860.2853 12.328 1.386 1.236 8876.5103 12.047 1.269 1.174 8860.3529 12.329 1.370 1.258 8877.1839 12.175 1.328 1.189 8860.4672 12.279 1.416 1.204 8877.2550 12.188 1.350 1.212 8862.3297 12.267 1.406 1.299 8877.2919 12.219 1.331 1.238 8862.3668 12.267 1.396 1.237 8877.3455 12.217 1.399 1.225 8862.4340 12.312 1.418 1.246 8877.4109 12.242 1.412 1.201 8870.2625 11.779 1.203 1.034 8877.5104 12.285 1.424 - 8870.3093 11.766 1.217 1.050 8878.1958 12.484 1.504 1.238 8870.3319 11.802 1.178 1.091 8878.2894 12.531 1.498 1.294 8870.3842 11.832 1.208 1.104 8878.3283 12.550 1.564 1.325 8870.4045 11.846 1.226 1.110 8878.3634 12.577 1.400 1.334 8870.4135 11.858 1.208 1.096 8879.2920 11.807 1.184 1.087 8870.4628 11.880 1.225 1.091 8879.3421 11.855 1.238 1.116 8870.5070 11.886 1.209 1.110 8879.3628 11.862 1.237 1.101 8872.1721 12.528 1.580 1.261 8879.3967 11.906 1.233 1.143 8872.3000 12.587 1.485 1.325 8879.4409 11.926 1.252 1.125 8872.3218 12.596 1.477 1.318 8879.5115 11.988 1.258 1.169 8872.3602 12.568 1.470 1.315 8880.1848 12.371 1.476 1.287 8872.3865 12.564 1.446 1.316 8880.2404 12.402 1.396 1.302 8872.4301 12.506 1.448 1.253 8880.2712 12.400 1.352 1.271 8874.1783 12.402 1.454 1.292 8880.3080 12.434 1.516 1.277 8874.2557 12.396 1.494 1.260 8880.3522 12.433 1.497 1.292 8874.3052 12.420 1.463 1.276 8880.3872 12.369 1.595 1.192 Table 1 (continued) JD hel V B-V V-R JD hel V B-V V-R 2410000+ 2410000+ 8880.4232 12.441 1.495 1.265 8888.3321 12.020 1.216 1.171 8880.4535 12.495 1.442 - 8888.3055 11.988 1.284 1.175 8880.5061 12.507 1.491 1.339 8888.3815 12.034 1.281 1.164 8881.1794 12.507 1.481 1.286 8888.4144 12.044 1.296 1.186 8881.2330 12.559 1.541 1.405 8888.5163 12.097 1.347 - 8881.2611 12.399 1.538 1.304 8889.2020 12.389 1.137 1.269 8881.3360 12.451 1.438 1.280 8889.2381 12.413 1.150 1.302 8881.3893 12.382 1.470 1.260 8889.2647 12.426 1.466 1.309 8881.4110 12.398 1.385 1.261 8889.2996 12.382 1.468 1.290 8881.5140 12.310 1.392 1.201 8889.3388 12.106 1.467 1.289 8882.1873 12.143 1.310 1.219 8890.1817 12.409 1.423 1.288 8882.2355 12.128 1.346 1.203 8890.2163 12.395 1.413 1.281 8882.2716 12.153 1.314 1.215 8890.2449 12.373 1.124 1.247 8882.3060 12.148 1.356 1.187 8890.2673 12.364 1.452 1.252 8882.3585 12.164 1.339 1.188 8890.3019 12.376 1.425 1.236 8882.4022 12.209 1.300 1.252 8890.3081 12.374 1.411 1.263 8882.4309 12.207 1.325 1.217 8890.3443 12.363 1.434 1.255 8883.2227 12.270 1.384 1.217 8890.3611 12.385 1.395 1.284 8883.2650 12.295 1.383 1.258 8890.3907 12.357 1.422 1.252 8883.3000 12.288 1.391 1.219 8890.4061 12.372 1.393 1.259 8883.3543 12.286 1.355 1.247 8890.5153 12.313 1.415 - 8883.3883 12.296 1.364 1.252 8891.1776 12.258 1.383 1.238 8883.4336 12.307 1.412 1.265 8891.2157 12.252 1.377 1.229 8883.5091 12.291 1.413 1.236 8891.2411 12.233 1.360 1.207 8881.1990 12.402 1.426 1.286 8891.2779 12.232 1.324 1.210 8881.2402 12.437 1.426 1.222 8891.3089 12.217 1.331 1.217 8885.1933 11.977 1.222 1.134 8891.3201 12.205 1.319 1.216 8885.2342 11.923 1.233 1.107 8891.3576 12.182 1.339 1.174 8885.2650 11.895 1.222 1.106 8891.3735 12.166 1.341 1.201 8885.3365 11.818 1.184 1.099 8891.4132 12.136 1.330 1.190 8885.3960 11.826 1.153 1.133 8891.1930 12.130 1.347 1.192 8885.4280 11.805 1.162 1.104 8892.1930 12.130 1.347 1.192 8885.5147 11.837 1.149 - 8892.2327 12.151 1.337 1.206 8886.1957 12.240 1.332 1.265 8892.2579 12.179 1.354 1.233 8886.2460 12.260 1.394 1.267 8892.2942 12.217 1.391 1.238 8886.2984 12.281 1.117 1.245 8892.3274 12.261 1.110 1.247 8886.3220 12.286 1.456 1.264 8893.1830 12.187 1.498 1.301 8886.3424 12.307 1.460 1.263 8893.2233 12.507 1.480 1.323 8886.3850 12.346 1.412 - 8893.2108 12.505 1.463 1.304 8886.4252 12.361 1.422 1.275 8893.2510 12.508 1.497 1.336 8886.5107 12.407 1.464 - 8893.2707 12.507 1.462 1.312 8887.2297 12.580 1.567 1.306 8893.2823 12.517 1.488 1.304 8887.2747 12.609 1.477 1.352 8893.3104 12.513 1.485 1.296 8887.3129 12.593 1.494 1.315 8893.3356 12.538 1.457 1.319 8888.1923 11.931 1.214 - 8893.3558 12.530 1.494 1.326 8888.2318 11.951 1.234 1.132 8893.3748 12.548 1.500 1.321 8888.2495 11.951 1.237 1.119 8893.1181 12.521 1.509 1.289 8888.2623 11.952 1.275 1.114 8894.1754 11.730 1.175 1.068 8888.2874 11.997 1.252 1.161 8894.1789 11.729 1.143 1.050 8888.3055 11.988 1.284 1.175 8894.2021 11.710 1.138 1.069 Table 1 (continued) JD hel V B-V V-R JD hel V B-V V-R 2440000+ 2440000+ 8894.2090 11.712 1.162 1.073 8894.2729 11.719 1.151 1.071 8894.2189 11.700 1.174 1.044 8894.2808 11.711 1.132 1.046 8894.2228 11.690 1.152 1.041 8894.2849 11.718 1.160 1.043 8894.2424 11.703 1.149 1.055 8894.2926 11.723 1.160 1.067 8894.2472 11.704 1.141 1.056 8894.3023 11.735 1.170 1.059 8894.2576 11.705 1.154 1.062 8894.3183 11.779 1.167 1.067 8894.2643 11.692 1.160 1.052 8894.3333 11.803 1.155 1.087 8894.2698 11.720 1.153 1.062 8894.3441 11.807 1.152 1.076 The author wishes to express his thanks to Dr. V. S. Shevchenko for allocation of observing time. L. N. BERDNIKOV Sternberg Astronomical Institute, 13, University Avenue, Moscow 119899, Russia University of Saratov, Saratov, Russia Reference: Berdnikov, L. N., 1992, Pisma v Astron. Zh., 18, 654 [BIBCODE 1992SvAL...18..259B ]