IAU COMMISSION 27 UNPUBLISHED DATA FILE 281E February, 1994 The Variable Star BD +31d 0849 This file contains 120 UBV and 17 RI observations of EW eclipsing binary star BD +31d 0849. The observations were made with the Kvistaberg 40cm telescope, the 60cm telescope at the Observatorio Astrofisico del Roque de los Muchachos, and the 2.5m Nordic Optical Telescope. BD +31d 0845 was used as a comparison star. A period of 0.603500 days was derived from these data. These data are discussed in a paper which will appear in the IBVS. Tarmo Oja Kvistaberg Observatory S-197 91 Bro, Sweden ********************************************************************** Observations of BD +31!0849 V B-V U-B V-R R-I H.J.D.* INSTR 8.931 .449 .122 -514.4582 T40 8.917 .434 .145 -507.4800 T40 8.994 .459 .133 -134.6373 T40 8.976 .446 .140 -91.7310 T40 8.858 .440 .144 186.5853 T40 8.878 .450 .132 206.5881 T40 8.880 .467 .115 223.3790 T40 8.898 .450 .137 229.4005 T40 8.851 .460 .132 229.4791 T40 8.846 .460 .148 230.3745 T40 8.908 .451 .148 230.4377 T40 8.978 .467 .138 230.5424 T40 8.932 .460 .133 260.3312 T40 8.945 .458 .110 260.3395 T40 8.972 .459 .133 260.3603 T40 8.993 .445 .145 260.3869 T40 8.854 .455 .120 274.3654 T40 8.862 .447 .119 274.3724 T40 8.840 .472 .119 274.3878 T40 8.843 .460 .114 274.4073 T40 8.858 .447 .101 274.4289 T40 8.859 .457 .125 278.3172 T40 8.865 .452 .129 278.3230 T40 8.854 .457 .129 278.3459 T40 8.855 .455 .130 278.3650 T40 8.854 .468 .133 278.3812 T40 8.875 .445 .133 278.3870 T40 8.883 .450 .140 278.4040 T40 8.916 .468 .142 278.4261 T40 8.984 .455 311.3678 T60 8.970 .456 .141 311.4035 T60 8.940 .466 .135 311.4326 T60 8.892 .456 .145 311.4704 T60 8.856 .463 .136 311.5004 T60 8.852 .450 .161 311.5228 T60 8.899 .449 .137 312.3558 T60 8.847 .451 .119 312.3966 T60 8.827 .455 .130 312.4257 T60 8.843 .444 .114 312.4543 T60 8.903 .442 .129 312.4813 T60 8.901 .465 .164 313.4162 T60 8.920 .465 .145 313.4382 T60 8.966 .469 .117 313.4631 T60 8.974 .464 .127 313.4947 T60 8.957 .464 .162 314.3722 T60 8.982 .459 .160 314.4009 T60 8.963 .460 .158 314.4325 T60 8.952 .455 .154 314.4595 T60 8.886 .471 .134 314.4894 T60 8.931 .457 .119 315.3602 T60 8.892 .453 .130 315.3789 T60 8.859 .467 .123 315.3964 T60 8.848 .455 .123 315.4176 T60 8.842 .449 .112 315.4429 T60 8.840 .463 315.4737 T60 8.865 .471 .104 315.4969 T60 8.893 .458 .126 315.5198 T60 8.829 .466 .140 319.3709 T60 8.834 .458 .128 319.4009 T60 8.845 .455 .139 319.4291 T60 8.889 .449 .115 319.4574 T60 8.971 .452 .134 324.3493 T60 8.965 .447 .153 324.3738 T60 8.864 .456 .118 324.4507 T60 8.911 .456 .119 .255 .329 334.3742 NOT 8.887 .449 .118 .277 .273 334.3809 NOT 8.833 .457 .114 .266 .301 335.3460 NOT 8.830 .453 .120 .279 .273 335.3863 NOT 8.860 .447 .125 .276 .290 335.4154 NOT 8.873 .458 .124 .273 .309 335.4345 NOT 8.882 .449 .121 .266 .282 336.3453 NOT 8.913 .446 .125 .279 .264 336.3644 NOT 8.945 .448 .127 .275 .281 336.3868 NOT 8.968 .446 .132 .279 .289 336.4097 NOT 8.966 .451 .118 .284 .272 336.4492 NOT 8.954 .432 .108 .277 .285 337.3400 NOT 8.944 .448 .114 .281 .292 337.3690 NOT 8.926 .446 .118 .281 .284 337.3790 NOT 8.877 .456 .114 .270 .307 337.4106 NOT 8.843 .438 .113 .282 .252 337.4563 NOT 8.981 .452 .152 560.6333 T60 8.968 .449 .158 561.5280 T60 8.893 .455 .150 561.5982 T60 8.844 .447 .152 561.6452 T60 8.839 .449 .132 561.6985 T60 8.940 .455 .135 561.7802 T60 8.892 .457 .142 571.5657 T60 8.860 .441 .143 575.5005 T60 8.822 .443 .147 575.5545 T60 8.865 .446 .148 575.6148 T60 8.935 .455 .136 575.6763 T60 8.952 .456 .146 575.7345 T60 8.854 .459 .146 581.5492 T60 8.840 .467 .134 581.5978 T60 8.836 .441 .113 593.3748 T40 8.887 .442 .119 593.4380 T40 8.921 .441 .128 593.4642 T40 8.964 .444 .121 593.4816 T40 8.979 .441 .120 593.5045 T40 8.956 .439 .135 595.3482 T40 8.892 .432 .146 595.4105 T40 8.837 .433 .141 595.4583 T40 8.841 .451 .126 600.3283 T40 8.872 .445 .135 600.3662 T40 8.944 .446 .130 600.4301 T40 8.980 .457 .112 600.4488 T40 8.846 .461 .114 631.4175 T40 8.895 .445 .109 631.4640 T40 8.964 .448 .139 652.3260 T40 8.911 .464 .126 652.4194 T40 8.887 .455 .117 652.4645 T40 8.938 .459 .149 678.3766 T60 8.873 .463 .150 678.4389 T60 8.868 .466 .143 678.4605 T60 8.865 .468 .132 679.3475 T60 8.981 .477 .151 679.5391 T60 8.933 .458 .135 686.3926 T60 8.978 .456 .152 686.4308 T60 8.900 .453 .135 .287 .276 692.3977 NOT 8.921 .456 .135 694.3541 T60 H.J.D.* = H.J.D - 2 448 000