COMMISSIONS 27 AND 42 OF THE IAU INFORMATION BULLETIN ON VARIABLE STARS Number 3988 Konkoly Observatory Budapest 15 February 1994 HU ISSN 0374 - 0676 BVR OBSERVATIONS OF THE DOUBLE-MODE CEPHEID AS Cas Recently one of us (Berdnikov, 1992) has decomposed available photoelectric observations of all double-mode Cepheids into two oscillations. It was pointed out as well that the number of the existing observations is not sufficient for certain investigation of light curve variations in the majority of these stars. Therefore we continue to carry out the observations of the all accessible double-mode Cepheids. Photoelectric observations of double-mode Cepheid AS Cas were carried out in summer- autumn 1993. The 60-cm reflector of the Mt. Maidanak observatory of the Tashkent Astronomical Institute was used and 101 BVR measurements (Table 1) were obtained. Table 1 ------------------------------------------------------------------------ JD hel V B-V V-R JD hel V B-V V-R 2440000+ 2440000+ ------------------------------------------------------------------------ 9198.4712 12.362 1.447 1.289 9212.3315 12.262 1.336 1.244 9199.4535 12.389 1.273 1.254 9212.4507 12.275 1.357 1.260 9201.4332 12.386 1.454 1.297 9218.3324 12.151 1.304 1.196 9202.3661 12.114 1.251 1.214 9219.2867 12.486 1.414 1.338 9202.4537 11.984 1.219 1.118 9219.3909 12.461 1.454 1.293 9203.3105 12.132 1.323 1.219 9219.4887 12.448 1.485 1.271 9203.3992 12.162 1.339 1.269 9220.2814 12.306 1.362 1.227 9203.4606 12.269 1.375 1.258 9220.4235 12.229 1.370 1.194 9204.3027 12.479 1.472 1.279 9221.3329 12.106 1.274 1.200 9204.3872 12.502 1.406 1.310 9221.4335 12.065 1.291 1.171 9204.4662 12.472 1.499 1.283 9222.2835 12.272 1.369 1.233 9205.3122 12.230 1.340 1.185 9222.4105 12.326 1.406 1.260 9205.3956 12.175 1.339 1.155 9224.2962 11.940 1.217 1.127 9205.4625 12.231 1.343 1.218 9224.4204 12.049 1.271 1.208 9206.3354 12.072 1.258 1.147 9225.2618 12.486 1.474 1.322 9206.4005 12.109 1.305 1.182 9225.4116 12.527 1.482 1.326 9206.4636 12.117 1.290 1.191 9225.4933 12.545 1.450 1.312 9207.3223 12.310 1.367 1.254 9226.2641 12.360 1.360 1.253 9207.4015 12.369 1.393 1.261 9226.4068 12.238 1.278 1.201 9207.4657 12.384 1.441 1.293 9226.4928 12.118 1.290 1.162 9209.3689 12.058 1.305 1.172 9227.2572 12.159 1.337 1.178 9210.3373 12.530 1.487 1.338 9227.4087 12.252 1.345 1.248 9210.4233 12.502 1.492 1.288 9227.4982 12.278 1.388 1.211 9211.3106 12.204 1.329 1.197 9228.2669 12.328 1.406 1.282 9211.4542 12.049 1.266 1.146 9228.4228 12.325 1.375 1.272 ------------------------------------------------------------------------- Table 1 (continued) ---------------------------------------------------------------------------- JD hel V B-V V-R JD hel V B-V V-R 2440000+ 2440000+ ---------------------------------------------------------------------------- 9228.4967 12.310 1.405 1.265 9237.4061 12.262 1.405 1.221 9229.2579 12.416 1.416 1.282 9237.5045 12.371 1.401 1.296 9229.4200 12.432 1.428 1.327 9238.2782 12.536 1.478 1.296 9229.4966 12.441 1.424 1.293 9238.4077 12.570 1.475 1.314 9230.2620 11.803 1.173 1.088 9239.2142 11.773 1.172 1.054 9230.3991 11.862 1.190 1.108 9239.4014 11.954 1.212 1.139 9230.4947 11.903 1.221 1.119 9239.5074 12.049 1.266 1.169 9231.2631 12.367 1.409 1.318 9240.2257 12.428 1.457 1.310 9231.4051 12.357 1.512 1.286 9240.3369 12.457 1.475 1.284 9231.4941 12.465 1.499 1.327 9240.5081 12.540 1.550 1.277 9232.2475 12.554 1.502 1.266 9241.2275 12.461 1.387 1.263 9232.4033 12.489 1.405 1.282 9241.3597 12.383 1.354 1.255 9232.4948 12.338 1.392 1.227 9241.5091 12.274 1.383 1.217 9233.2538 12.069 1.261 1.183 9242.3273 12.172 1.313 1.211 9233.4012 12.065 1.338 1.190 9242.4123 12.209 1.354 1.242 9234.2489 12.445 1.493 1.270 9242.5087 12.213 1.363 1.186 9234.4167 12.453 1.404 1.305 9243.2081 12.287 1.369 1.249 9234.4941 12.441 1.463 1.251 9243.3588 12.310 1.361 1.278 9235.2435 12.334 1.370 1.231 9243.5112 12.339 1.423 1.243 9235.4161 12.323 1.313 1.283 9244.2311 12.410 1.415 1.277 9235.4982 12.299 1.361 1.230 9244.3877 12.438 1.424 1.273 9236.2265 12.197 1.283 1.216 9244.5049 12.460 1.440 1.283 9236.4155 12.103 1.273 1.183 9245.2288 11.874 1.183 1.113 9236.4993 12.077 1.261 1.164 9245.3646 11.838 1.146 1.116 9237.2221 12.238 1.305 1.243 9298.1243 12.394 1.408 1.291 9298.2933 12.452 1.410 1.349 --------------------------------------------------------------------------- The authors wish to express their thanks to Dr. V. S. Shevchenko for allocation of observing time. L. BERDNIKOV M. IBRAGIMOV Sternberg Astronomical Institute, Astronomical Institute, Tashkent, Moscow, Russia Republic of Uzbekistan University of Saratov, Saratov, Russia Reference: Berdnikov, L. N., 1992, Pis`ma Astron. Zh., 18, 654 [BIBCODE 1992SvAL...18..259B ]