IAU Commission 27 Unpublished Data File 293E March 24, 1995 Photometry of 17 Stars in Ursa Major, Ursa Minor, and Virgo This file contains tables of CCD photometry for seventeen stars in the constellations Ursa Major (eight stars), Ursa Minor (one star) and Virgo (eight stars). The columns in each table list the Heliocentric Julian Date, the phase calculated with the elements listed at the head of the table, the V magnitude and its error (in milli-magnitudes), the R magnitude and its error and the V-R color and its error. The errors are formal errors based on photon statistics and are not intended to be taken as the actual accuracy of the magnitudes. When a star falls near a defect on the CCD, magnitudes can not be accurately recovered. In Such cases, the error has been arbitrarily set to 50 mmg or larger. The observations were made with the CCD photometer on the Behlen Observatory 76-cm telescope. Schmidt, Chab and Reiswig (A.J. 109, 1239, 1995) discussed these data and presented finding charts and plots of the light and color curves. Edward G. Schmidt Behlen Observatory Department of Physics University of Nebraska USA ******************************************************************************* PHOTOMETRIC DATA FOR UU UMa PERIOD: 0.644810 EPOCH OF MAXIMUM: 2,448,696.790 ------------------------------------------------ HJD - PHASE V s.d. R s.d. V-R s.d. 2,440,000 ------------------------------------------------ 8692.672 0.613 13.908 8 13.603 8 0.297 11 8692.720 0.688 13.868 9 13.600 10 0.259 13 8696.649 0.782 13.881 6 13.613 7 0.259 9 8696.776 0.979 13.133 4 13.021 5 0.100 6 8696.856 0.103 13.189 5 13.047 6 0.130 8 8696.910 0.186 13.400 6 13.198 6 0.193 8 8698.660 0.900 13.892 8 13.635 9 0.250 12 8702.923 0.511 13.812 10 13.541 10 0.261 14 8704.708 0.280 13.552 6 13.319 7 0.224 9 8704.784 0.398 13.678 7 13.462 8 0.205 11 8715.735 0.381 13.674 7 13.410 7 0.257 10 ------------------------------------------------ PHOTOMETRIC DATA FOR UZ UMa PERIOD: 0.4668795 EPOCH OF MAXIMUM: 2,448,979.682 ------------------------------------------------ HJD - PHASE V s.d. R s.d. V-R s.d. 2,440,000 ------------------------------------------------ 8705.713 0.191 14.145 5 13.924 6 0.219 8 8715.698 0.578 14.603 7 14.306 8 0.296 11 8760.615 0.785 14.645 8 14.357 8 0.288 11 8979.642 0.913 14.477 5 14.296 5 0.181 7 8979.682 0.999 13.407 3 13.364 3 0.045 4 8979.727 0.096 13.730 3 13.615 4 0.116 5 8979.774 0.198 14.082 4 13.915 4 0.167 6 8979.826 0.309 14.332 4 14.094 5 0.238 6 8979.861 0.384 14.459 5 14.190 5 0.269 7 8979.919 0.507 14.637 5 14.332 5 0.305 7 8980.017 0.717 14.697 6 14.400 7 0.294 9 8980.717 0.216 14.134 4 13.947 4 0.188 6 8980.730 0.244 14.214 3 13.984 4 0.230 5 8980.766 0.321 14.367 3 14.085 4 0.282 5 8980.779 0.350 14.397 4 14.139 4 0.259 6 8980.800 0.394 14.486 3 14.206 4 0.280 5 8980.829 0.457 14.567 3 14.276 4 0.291 5 8980.859 0.522 14.651 3 14.358 4 0.295 5 8980.868 0.541 14.666 2 14.376 4 0.290 4 8980.908 0.626 14.710 3 14.412 4 0.300 5 8980.925 0.662 14.701 4 14.431 3 0.272 5 ------------------------------------------------ PHOTOMETRIC DATA FOR AB UMa PERIOD: 0.599577 EPOCH OF MAXIMUM: 2,448,632.970 ------------------------------------------------ HJD - PHASE V s.d. R s.d. V-R s.d. 2,440,000 ------------------------------------------------ 8367.790 0.722 11.075 1 10.782 1 0.292 1 8367.847 0.816 10.838 1 10.576 1 0.262 1 8374.880 0.546 11.031 1 10.719 1 0.313 1 8383.743 0.329 10.911 1 10.611 1 0.300 1 8551.982 0.925 10.736 2 10.486 2 0.250 3 8580.894 0.145 10.815 1 10.477 1 0.339 1 8597.856 0.435 10.970 2 10.648 2 0.322 3 8597.979 0.640 11.057 2 10.743 2 0.314 3 8604.919 0.215 10.838 2 10.557 2 0.282 3 8632.976 0.009 10.692 2 10.457 2 0.234 3 8648.700 0.235 10.899 2 10.569 3 0.329 4 8674.794 0.756 11.020 2 10.744 2 0.275 3 8674.856 0.860 10.779 2 10.532 2 0.245 3 8674.975 0.057 10.733 2 10.476 1 0.255 2 8675.015 0.124 10.776 2 10.512 2 0.262 3 ------------------------------------------------ PHOTOMETRIC DATA FOR AX UMa PERIOD: 0.534910 EPOCH OF MAXIMUM: 2,448,696.680 ------------------------------------------------ HJD - PHASE V s.d. R s.d. V-R s.d. 2,440,000 ------------------------------------------------ 8691.725 0.736 13.689 6 13.416 6 0.267 8 8692.636 0.439 13.583 5 13.308 6 0.269 8 8692.759 0.669 13.717 8 13.403 8 0.309 11 8695.900 0.543 13.641 5 13.344 5 0.291 7 8696.591 0.833 13.676 4 13.411 5 0.258 6 8696.645 0.936 12.994 3 12.889 4 0.095 5 8696.716 0.067 12.821 3 12.695 3 0.116 4 8696.765 0.158 13.069 4 12.905 4 0.156 6 8696.816 0.255 13.326 5 13.080 4 0.239 6 8696.863 0.343 13.476 5 13.199 6 0.271 8 ------------------------------------------------ PHOTOMETRIC DATA FOR BB UMa PERIOD: 0.559053 EPOCH OF MAXIMUM: 2,448,680.716 ------------------------------------------------ HJD - PHASE V s.d. R s.d. V-R s.d. 2,440,000 ------------------------------------------------ 8654.900 0.823 14.007 6 13.765 7 0.236 9 8654.957 0.924 13.925 7 13.713 7 0.206 10 8660.923 0.595 14.019 8 13.733 54 0.280 55 8674.836 0.482 13.937 7 13.659 53 0.272 53 8674.949 0.685 14.015 8 13.734 8 0.276 11 8678.620 0.251 13.615 6 13.385 7 0.224 9 8678.685 0.366 13.765 7 13.552 53 0.206 53 8680.716 1.000 13.032 4 12.977 53 0.044 53 8680.775 0.106 13.308 5 13.164 5 0.134 7 8692.690 0.419 13.872 7 13.586 8 0.280 11 8696.685 0.564 14.035 6 13.709 7 0.320 9 ------------------------------------------------ PHOTOMETRIC DATA FOR BF UMa PERIOD: 0.501023 EPOCH OF MAXIMUM: 2,448,608.800 ------------------------------------------------ HJD - PHASE V s.d. R s.d. V-R s.d. 2,440,000 ------------------------------------------------ 8367.786 0.956 13.150 3 13.035 4 0.112 5 8367.874 0.132 13.073 3 12.912 3 0.158 4 8374.851 0.057 12.833 2 12.741 2 0.089 3 8383.715 0.749 13.821 3 13.563 3 0.257 4 8383.758 0.835 13.810 4 13.551 4 0.256 6 8551.967 0.566 13.806 7 13.523 7 0.282 10 8580.920 0.354 13.553 4 13.274 4 0.278 6 8587.875 0.235 13.300 9 13.033 9 0.266 13 8597.944 0.333 13.501 4 13.212 4 0.288 6 8608.800 1.000 12.740 3 12.718 3 0.019 4 8625.773 0.876 13.897 6 13.634 7 0.261 9 8632.828 0.958 13.140 3 13.045 4 0.092 5 8654.850 0.911 13.809 4 13.577 5 0.230 6 8672.644 0.426 13.662 8 13.409 8 0.251 11 ------------------------------------------------ PHOTOMETRIC DATA FOR BN UMa PERIOD: 0.399901 EPOCH OF MAXIMUM: 2,448,654.963 ------------------------------------------------ HJD - PHASE V s.d. R s.d. V-R s.d. 2,440,000 ------------------------------------------------ 8654.964 0.002 13.354 4 13.197 5 0.152 6 8672.905 0.867 13.450 7 13.263 8 0.183 11 8674.820 0.656 13.506 6 13.348 6 0.151 8 8677.843 0.214 13.607 5 13.409 6 0.193 8 8677.893 0.338 13.761 6 13.497 7 0.260 9 8678.629 0.179 13.509 6 13.327 6 0.178 8 8678.656 0.248 13.560 6 13.347 7 0.208 9 8678.746 0.472 13.744 6 13.505 7 0.235 9 8678.773 0.538 13.771 6 13.533 7 0.234 9 8680.652 0.239 13.648 6 13.384 6 0.258 8 8680.750 0.483 13.715 6 13.482 7 0.226 9 ------------------------------------------------ PHOTOMETRIC DATA FOR Anon UMa PERIOD: 0.466879 EPOCH OF MAXIMUM: 2,448,979.682 ------------------------------------------------ HJD - PHASE V s.d. R s.d. V-R s.d. 2,440,000 ------------------------------------------------ 8705.713 0.191 9.866 1 9.270 1 0.595 1 8708.796 0.794 9.819 1 9.273 1 0.546 1 8715.698 0.578 9.845 1 9.289 1 0.557 1 8760.615 0.785 9.841 1 9.435 1 0.406 1 8979.727 0.096 10.395 1 9.959 1 0.435 1 8979.774 0.198 10.066 1 9.876 1 0.190 1 8979.861 0.384 9.937 0 9.499 0 0.437 0 8979.919 0.507 10.081 1 9.752 1 0.329 1 8980.017 0.717 9.848 0 9.283 0 0.561 0 8980.717 0.216 9.968 0 9.972 0 -0.002 0 8980.730 0.244 10.171 0 10.301 1 -0.126 1 8980.766 0.321 10.406 0 10.060 1 0.345 1 8980.829 0.457 10.435 0 10.101 0 0.334 0 8980.859 0.522 10.637 0 10.217 0 0.421 0 8980.868 0.541 11.079 0 10.503 1 0.573 1 8980.908 0.626 10.838 1 10.619 1 0.221 1 ------------------------------------------------ PHOTOMETRIC DATA FOR RX UMi PERIOD: 0.490442 EPOCH OF MAXIMUM: 2,448,674.900 ------------------------------------------------ HJD - PHASE V s.d. R s.d. V-R s.d. 2,440,000 ------------------------------------------------ 8674.898 0.995 12.878 7 12.823 8 0.050 11 8674.913 0.027 12.977 5 12.892 5 0.079 7 8681.880 0.232 13.509 7 13.272 7 0.232 10 8681.933 0.339 13.696 8 13.414 9 0.277 12 8681.983 0.443 13.845 7 13.529 8 0.313 11 8682.907 0.326 13.674 5 13.407 7 0.262 9 8695.781 0.576 13.907 8 13.641 9 0.261 12 8695.825 0.666 13.942 8 13.636 8 0.301 11 8695.879 0.775 13.948 8 13.662 9 0.281 12 8695.923 0.865 14.057 8 13.782 8 0.270 11 8704.775 0.915 13.801 9 13.567 9 0.229 13 8704.867 0.102 13.226 5 13.046 6 0.173 8 ------------------------------------------------ PHOTOMETRIC DATA FOR UV Vir PERIOD: 0.5870824 EPOCH OF MAXIMUM: 2,448,663.912 ------------------------------------------------ HJD - PHASE V s.d. R s.d. V-R s.d. 2,440,000 ------------------------------------------------ 8632.854 0.097 11.548 2 11.399 2 0.146 3 8632.921 0.212 11.778 2 11.551 2 0.224 3 8632.980 0.313 11.944 2 11.684 2 0.256 3 8647.835 0.615 12.245 3 11.945 3 0.297 4 8647.887 0.704 12.257 3 11.948 3 0.306 4 8647.949 0.810 12.339 4 12.052 4 0.284 6 8647.991 0.882 12.190 2 11.947 3 0.240 4 8651.794 0.359 12.002 3 11.735 3 0.264 4 8654.810 0.495 12.157 3 11.844 3 0.310 4 8663.901 0.982 11.452 2 11.335 2 0.112 3 8678.791 0.344 12.045 3 11.765 3 0.278 4 8681.806 0.479 12.147 3 11.840 3 0.303 4 8682.876 0.302 11.976 2 11.730 3 0.241 4 ------------------------------------------------ PHOTOMETRIC DATA FOR VZ Vir PERIOD: 0.3396113 EPOCH OF MAXIMUM: 2,448,071.675 ------------------------------------------------ HJD - PHASE V s.d. R s.d. V-R s.d. 2,440,000 ------------------------------------------------ 8044.651 0.426 12.826 5 12.596 5 0.230 7 8071.652 0.933 12.411 3 12.287 4 0.124 5 8075.681 0.795 12.558 3 12.383 5 0.174 6 8343.938 0.692 12.605 53 12.445 3 0.157 53 8344.754 0.093 12.460 4 12.347 4 0.110 6 8344.782 0.176 12.577 4 12.409 4 0.166 6 8344.822 0.294 12.719 4 12.528 4 0.188 6 8367.763 0.843 12.485 3 12.348 3 0.134 4 8374.796 0.552 12.837 4 12.603 5 0.233 6 8632.969 0.754 12.575 4 12.435 5 0.136 6 8642.856 0.868 12.474 5 12.292 7 0.179 9 8642.879 0.934 12.418 5 12.311 5 0.102 7 8642.942 0.121 12.486 4 12.322 5 0.160 6 8653.921 0.448 12.820 9 12.597 6 0.219 11 8674.846 0.062 12.414 6 12.256 8 0.153 10 ------------------------------------------------ PHOTOMETRIC DATA FOR AE Vir PERIOD: 0.6338581 EPOCH OF MAXIMUM: 2,448,678.800 ------------------------------------------------ HJD - PHASE V s.d. R s.d. V-R s.d. 2,440,000 ------------------------------------------------ 8383.852 0.679 13.643 6 13.317 7 0.325 9 8663.850 0.414 13.502 8 13.190 9 0.309 12 8674.956 0.936 13.283 7 13.097 8 0.181 11 8677.852 0.505 13.568 8 13.245 9 0.320 12 8677.901 0.582 13.677 8 13.315 9 0.360 12 8678.811 0.017 12.747 5 12.629 7 0.112 9 8681.874 0.850 13.850 10 13.502 10 0.345 14 8682.794 0.301 13.397 8 13.120 9 0.272 12 8692.809 0.101 12.936 5 12.742 10 0.187 11 8695.743 0.730 13.699 13 13.353 12 0.344 18 8695.892 0.964 12.944 5 12.822 6 0.115 8 ------------------------------------------------ PHOTOMETRIC DATA FOR BB Vir PERIOD: 0.4710965 EPOCH OF MAXIMUM: 2,448,682.970 ------------------------------------------------ HJD - PHASE V s.d. R s.d. V-R s.d. 2,440,000 ------------------------------------------------ 8653.951 0.402 11.298 3 11.142 4 0.151 5 8660.890 0.130 11.034 3 10.892 4 0.138 5 8674.840 0.742 11.424 4 11.210 5 0.209 6 8674.916 0.904 11.418 4 11.253 5 0.160 6 8674.984 0.049 10.839 3 10.770 4 0.063 5 8678.822 0.196 11.126 3 10.982 4 0.140 5 8680.755 0.298 11.218 4 10.967 5 0.246 6 8681.864 0.653 11.414 4 11.220 5 0.187 6 8682.755 0.543 11.392 4 11.218 5 0.166 6 8682.954 0.966 10.847 3 10.809 3 0.028 4 8695.805 0.244 11.194 4 11.027 4 0.159 6 8696.797 0.350 11.278 3 11.109 3 0.161 4 8705.771 0.401 11.313 3 11.138 4 0.175 5 8708.768 0.761 11.382 4 11.228 5 0.153 6 ------------------------------------------------ PHOTOMETRIC DATA FOR BM Vir PERIOD: 0.6718147 EPOCH OF MAXIMUM: 2,448,071.610 ------------------------------------------------ HJD - PHASE V s.d. R s.d. V-R s.d. 2,440,000 ------------------------------------------------ 7953.863 0.733 14.150 9 13.796 9 0.452 13 7953.919 0.816 14.374 11 13.850 10 0.624 15 7954.813 0.146 13.669 6 13.255 6 0.512 8 7954.925 0.314 13.881 4 13.474 5 0.505 6 7977.702 0.218 13.760 6 13.361 6 0.497 8 7977.839 0.421 13.881 53 13.608 7 0.371 53 8017.620 0.635 13.707 10 13.390 13 0.415 16 8048.718 0.925 13.692 11 13.407 11 0.385 16 8054.682 0.802 14.210 7 13.825 7 0.484 10 8055.675 0.281 13.732 9 13.414 7 0.417 11 8071.649 0.058 13.305 5 13.146 7 0.258 9 8234.998 0.204 14.283 54 14.311 15 0.068 56 8234.942 0.121 13.413 6 13.215 7 0.295 9 8343.906 0.315 13.808 9 13.502 11 0.404 14 8344.706 0.505 14.137 16 13.802 16 0.433 23 8344.773 0.604 14.052 10 13.760 12 0.390 16 8344.836 0.698 14.320 20 13.935 19 0.485 28 8367.748 0.803 14.193 6 13.838 6 0.453 8 8367.819 0.909 13.714 5 13.465 7 0.347 9 8374.733 0.201 13.733 8 13.370 8 0.461 11 8374.813 0.320 14.033 13 13.512 11 0.621 17 8383.736 0.602 14.254 6 13.713 6 0.640 8 8614.986 0.819 14.224 10 13.846 11 0.477 15 ------------------------------------------------ PHOTOMETRIC DATA FOR BS Vir PERIOD: 2.950000 EPOCH OF MAXIMUM: 2,448,642.864 ------------------------------------------------ HJD - PHASE V s.d. R s.d. V-R s.d. 2,440,000 ------------------------------------------------ 8642.958 0.032 14.879 7 14.119 5 0.762 9 8647.963 0.728 14.717 6 13.806 4 0.914 7 8648.013 0.745 14.658 7 13.766 5 0.894 9 8653.852 0.725 14.719 5 13.956 4 0.767 6 8653.968 0.764 14.680 5 13.872 4 0.813 6 8654.906 0.082 14.785 9 13.845 6 0.946 11 8663.912 0.135 14.739 6 13.839 4 0.905 7 8689.757 0.896 14.729 5 14.112 4 0.624 6 8689.813 0.915 14.762 19 13.881 4 0.894 19 8696.821 0.291 14.642 7 13.807 5 0.844 9 8696.878 0.310 14.667 7 13.838 5 0.838 9 8705.730 0.310 14.688 6 13.778 4 0.906 7 8708.729 0.327 14.671 6 13.788 4 0.878 7 ------------------------------------------------ PHOTOMETRIC DATA FOR DH Vir PERIOD: 0.681552 EPOCH OF MAXIMUM: 2,448,654.770 ------------------------------------------------ HJD - PHASE V s.d. R s.d. V-R s.d. 2,440,000 ------------------------------------------------ 8647.851 0.848 13.735 6 13.477 6 0.252 8 8647.909 0.934 13.277 3 13.107 5 0.165 6 8651.787 0.623 13.620 6 13.365 7 0.250 9 8654.784 0.021 12.885 3 12.827 4 0.051 5 8654.862 0.135 13.064 4 12.943 4 0.115 6 8654.923 0.224 13.231 7 13.082 6 0.143 9 8663.919 0.424 13.393 5 13.217 6 0.170 8 8689.734 0.301 13.312 5 13.066 5 0.239 7 8692.743 0.716 13.639 7 13.423 7 0.209 10 8704.859 0.493 13.522 6 13.316 7 0.199 9 ------------------------------------------------ PHOTOMETRIC DATA FOR DR Vir PERIOD: 0.545596 EPOCH OF MAXIMUM: 2,448,682.860 ------------------------------------------------ HJD - PHASE V s.d. R s.d. V-R s.d. 2,440,000 ------------------------------------------------ 8681.716 0.903 13.762 6 13.516 7 0.243 9 8682.717 0.738 13.900 6 13.611 7 0.285 9 8682.824 0.934 13.598 4 13.398 5 0.196 6 8680.760 0.151 13.389 4 13.188 5 0.197 6 8682.764 0.823 13.914 5 13.661 6 0.250 8 8682.890 0.054 13.196 4 13.067 4 0.123 6 8682.991 0.240 13.546 6 13.322 7 0.220 9 8689.696 0.530 13.860 6 13.563 7 0.295 9 8689.742 0.614 13.886 5 13.579 6 0.305 8 8691.824 0.430 13.794 6 13.518 6 0.274 8 8691.928 0.620 13.869 7 13.563 7 0.304 10 8696.674 0.319 13.664 5 13.391 5 0.269 7 8705.761 0.974 13.195 4 13.054 4 0.138 6 ------------------------------------------------