IAU Commission 27 Unpublished Data File 289E March 24, 1995 Photometry of 17 Stars in Cepheus, Coma Berenices Corona Borealis, Cygnus, Delphinus and Draco This file contains tables of CCD photometry for seventeen stars in the constellations Cepheus (one star), Coma Berenices (six stars), Corona Borealis (one star), Cygnus (five stars), Delphinus (one star) and Draco (three 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 EL Cep PERIOD: 0.4166275 EPOCH OF MAXIMUM: 2,448,594.677 ------------------------------------------------ HJD - PHASE V s.d. R s.d. V-R s.d. 2,440,000 ------------------------------------------------ 8573.546 0.281 13.323 5 12.861 5 0.463 7 8573.581 0.365 13.454 6 12.967 5 0.488 8 8573.625 0.470 13.620 6 13.088 6 0.533 8 8573.674 0.588 13.646 10 13.114 7 0.532 12 8573.708 0.670 13.668 8 13.159 7 0.511 11 8573.755 0.782 13.701 10 13.232 6 0.472 12 8574.705 0.063 12.780 5 12.459 5 0.320 7 8574.705 0.063 12.780 5 12.459 5 0.320 7 8580.555 0.103 12.881 7 12.553 4 0.327 8 8580.595 0.199 13.161 4 12.729 4 0.432 6 8581.713 0.883 13.841 12 13.297 10 0.548 16 8594.671 0.985 12.693 4 12.415 4 0.280 6 ------------------------------------------------ PHOTOMETRIC DATA FOR ST Com PERIOD: 0.59892864 EPOCH OF MAXIMUM: 2,448,643.000 ------------------------------------------------ HJD - PHASE V s.d. R s.d. V-R s.d. 2,440,000 ------------------------------------------------ 8642.849 0.747 11.746 2 11.423 2 0.321 3 8642.970 0.949 11.142 1 10.976 1 0.161 1 8653.979 0.330 11.481 1 11.174 2 0.304 2 8655.019 0.067 11.125 2 10.911 1 0.210 2 8674.869 0.210 11.316 1 11.066 2 0.246 2 8678.719 0.638 11.659 2 11.343 2 0.315 3 8681.828 0.829 11.859 2 11.468 2 0.389 3 8682.784 0.426 11.563 1 11.230 2 0.330 2 8682.852 0.540 11.630 1 11.317 2 0.311 2 ------------------------------------------------ PHOTOMETRIC DATA FOR TX Com PERIOD: 0.536470 EPOCH OF MAXIMUM: 2,448,746.630 ------------------------------------------------ HJD - PHASE V s.d. R s.d. V-R s.d. 2,440,000 ------------------------------------------------ 8696.609 0.760 14.598 11 14.254 9 0.339 14 8696.668 0.869 14.698 9 14.389 9 0.303 13 8696.838 0.186 14.100 6 13.852 7 0.242 9 8696.948 0.391 14.426 7 14.124 7 0.296 10 8698.608 0.486 14.574 29 14.236 28 0.333 40 8698.668 0.597 14.992 18 14.287 13 0.707 22 8698.710 0.675 14.605 12 14.316 13 0.283 18 8704.763 0.958 13.864 5 13.747 6 0.108 8 8704.837 0.096 13.865 5 13.707 6 0.148 8 8705.903 0.084 13.825 5 13.690 6 0.133 8 8745.702 0.270 14.254 6 13.987 6 0.264 8 8745.864 0.573 14.622 8 14.323 8 0.297 11 8746.636 0.011 13.599 4 13.531 5 0.065 6 8980.005 0.019 13.593 3 13.517 4 0.077 5 8980.841 0.578 14.592 5 14.283 5 0.307 7 ------------------------------------------------ PHOTOMETRIC DATA FOR AH Com PERIOD: 0.310160 EPOCH OF MAXIMUM: 2,448,705.847 ------------------------------------------------ HJD - PHASE V s.d. R s.d. V-R s.d. 2,440,000 ------------------------------------------------ 8705.738 0.650 14.548 4 14.361 4 0.182 6 8705.799 0.845 14.285 4 14.181 4 0.100 6 8705.822 0.920 14.149 3 14.038 4 0.107 5 8705.856 0.027 14.092 3 13.980 4 0.108 5 8705.889 0.134 14.180 4 14.005 4 0.171 6 8713.710 0.351 14.370 5 14.167 5 0.200 7 8713.738 0.443 14.557 5 14.270 6 0.285 8 8713.763 0.521 14.523 5 14.316 6 0.203 8 8715.759 0.957 14.150 4 14.052 4 0.095 6 8713.710 0.351 14.370 5 14.167 5 0.200 7 8713.738 0.443 14.557 5 14.270 6 0.285 8 8713.763 0.521 14.523 5 14.316 6 0.203 8 8745.632 0.272 14.198 4 14.082 4 0.112 6 8979.966 0.798 14.362 3 14.228 4 0.135 5 8981.035 0.246 14.195 4 14.062 4 0.134 6 ------------------------------------------------ PHOTOMETRIC DATA FOR CU Com PERIOD: 0.405820 EPOCH OF MAXIMUM: 2,448,674.942 ------------------------------------------------ HJD - PHASE V s.d. R s.d. V-R s.d. 2,440,000 ------------------------------------------------ 8374.716 0.199 13.188 4 12.998 4 0.189 6 8374.837 0.497 13.488 7 13.203 6 0.282 9 8383.781 0.537 13.441 3 13.179 3 0.261 4 8383.823 0.641 13.505 4 13.239 4 0.265 6 8597.941 0.259 13.306 5 13.090 5 0.215 7 8597.988 0.375 13.369 5 13.139 6 0.229 8 8600.898 0.543 13.374 4 13.156 53 0.218 53 8604.903 0.414 13.365 5 13.087 6 0.278 8 8609.012 0.538 13.504 4 13.215 7 0.289 8 8625.902 0.159 13.108 5 12.938 6 0.167 8 8632.851 0.281 13.279 5 13.059 6 0.217 8 8635.894 0.781 13.517 5 13.255 5 0.261 7 8654.758 0.263 13.219 5 13.025 5 0.191 7 8654.884 0.574 13.493 4 13.236 5 0.254 6 8660.752 0.034 13.029 6 12.849 6 0.177 8 8660.819 0.200 13.117 4 12.914 4 0.201 6 8663.751 0.424 13.460 6 13.201 7 0.256 9 8663.818 0.590 13.593 5 13.331 6 0.261 8 8663.879 0.739 13.627 5 13.328 5 0.297 7 8663.929 0.862 13.484 5 13.231 5 0.252 7 8672.875 0.907 13.140 6 13.021 7 0.115 9 8674.873 0.830 13.424 7 13.210 7 0.211 10 8674.933 0.977 13.005 5 12.872 6 0.129 8 8674.994 0.128 13.101 6 12.940 6 0.157 8 8677.820 0.093 13.168 4 12.967 5 0.198 6 8677.869 0.213 13.220 5 13.001 6 0.215 8 ------------------------------------------------ PHOTOMETRIC DATA FOR CW Com PERIOD: 0.332295 EPOCH OF MAXIMUM: 2,448,698.702 ------------------------------------------------ HJD - PHASE V s.d. R s.d. V-R s.d. 2,440,000 ------------------------------------------------ 8692.776 0.168 14.791 10 14.559 8 0.222 13 8695.856 0.437 15.049 10 14.809 11 0.232 15 8695.957 0.739 14.815 8 14.648 10 0.155 13 8696.655 0.841 14.700 8 14.552 10 0.138 13 8696.793 0.255 14.878 8 14.676 9 0.192 12 8696.826 0.355 14.982 12 14.740 13 0.233 18 8696.921 0.640 15.020 11 14.773 12 0.237 16 8696.963 0.766 14.761 9 14.605 10 0.145 13 8698.721 0.056 14.639 14 14.453 15 0.176 21 8704.661 0.933 14.627 8 14.463 10 0.152 13 8704.862 0.539 15.040 11 14.805 12 0.225 16 ------------------------------------------------ PHOTOMETRIC DATA FOR CZ Com PERIOD: 0.294840 EPOCH OF MAXIMUM: 2,448,755.653 ------------------------------------------------ HJD - PHASE V s.d. R s.d. V-R s.d. 2,440,000 ------------------------------------------------ 8692.766 0.707 14.243 6 14.060 10 0.171 12 8696.638 0.840 14.120 11 13.945 13 0.162 17 8696.954 0.913 14.125 7 13.968 8 0.145 11 8698.773 0.083 13.975 11 13.841 13 0.120 17 8704.643 0.990 13.966 6 13.850 8 0.104 10 8704.705 0.202 14.087 7 13.951 8 0.124 11 8704.727 0.278 14.182 7 13.994 8 0.177 11 8704.757 0.377 14.284 8 14.099 9 0.175 12 8704.791 0.493 14.353 8 14.159 10 0.184 13 8705.642 0.378 14.286 7 14.101 8 0.183 11 8715.612 0.195 14.055 10 13.913 12 0.139 16 8714.723 0.178 14.034 8 13.882 10 0.149 13 8745.692 0.217 14.121 6 13.950 7 0.166 9 8745.716 0.296 14.190 6 14.033 8 0.155 10 8755.657 0.014 13.945 8 13.835 11 0.107 14 8755.832 0.607 14.353 11 14.168 13 0.183 17 ------------------------------------------------ PHOTOMETRIC DATA FOR SU CrB PERIOD: 0.5730086 EPOCH OF MAXIMUM: 2,448,672.910 ------------------------------------------------ HJD - PHASE V s.d. R s.d. V-R s.d. 2,440,000 ------------------------------------------------ 8663.854 0.195 14.102 9 13.930 10 0.161 13 8672.909 0.999 13.576 7 13.523 8 0.041 11 8678.806 0.289 14.299 9 14.118 9 0.170 13 8681.895 0.681 14.705 9 14.425 9 0.270 13 8681.950 0.777 14.720 10 14.466 11 0.243 15 8682.818 0.292 14.297 7 14.075 8 0.210 11 8682.927 0.481 14.612 8 14.343 9 0.258 12 8682.986 0.585 14.623 8 14.349 9 0.264 12 8691.782 0.935 14.205 9 14.077 11 0.114 14 8691.863 0.077 13.793 6 13.689 7 0.090 9 8696.894 0.856 14.797 9 14.540 10 0.247 13 ------------------------------------------------ PHOTOMETRIC DATA FOR AL Cyg PERIOD: 1.841800 EPOCH OF MAXIMUM: 2,447,813.691 ------------------------------------------------ HJD - PHASE V s.d. R s.d. V-R s.d. 2,440,000 ------------------------------------------------ 7774.879 0.927 14.312 9 13.990 7 0.321 11 7779.727 0.559 14.359 10 14.071 11 0.286 15 7813.613 0.958 14.500 22 14.175 23 0.325 32 7820.716 0.814 14.271 6 13.955 8 0.316 10 7821.679 0.337 14.295 8 13.964 8 0.330 11 7825.733 0.538 14.387 16 14.128 17 0.259 23 7842.606 0.699 14.284 11 13.936 10 0.349 15 7878.541 0.210 14.359 8 14.021 9 0.338 12 8017.899 0.874 14.321 8 13.978 9 0.343 12 8054.744 0.879 14.295 8 13.970 8 0.326 11 8060.703 0.115 14.403 6 14.108 0 0.296 6 8070.731 0.559 14.363 8 14.074 8 0.290 11 8071.749 0.112 14.408 7 14.114 10 0.293 12 8102.769 0.954 14.445 7 14.087 7 0.358 10 8110.729 0.276 14.285 11 13.957 11 0.326 16 8149.695 0.432 14.313 6 13.948 6 0.365 8 8150.623 0.936 14.357 8 14.037 8 0.319 11 8156.594 0.178 14.337 8 14.018 9 0.320 12 8157.608 0.729 14.275 7 13.929 7 0.346 10 8160.676 0.394 14.280 8 13.928 9 0.353 12 8166.606 0.614 14.305 10 13.979 10 0.326 14 8177.590 0.578 14.367 10 14.036 11 0.332 15 8184.593 0.380 14.301 8 13.948 9 0.353 12 8192.608 0.732 14.271 9 13.931 10 0.340 13 8205.598 0.785 14.264 8 13.975 8 0.287 11 8206.538 0.295 14.287 5 13.956 8 0.332 9 8210.668 0.538 14.413 9 14.062 9 0.352 13 8226.549 0.160 14.318 9 14.014 9 0.304 13 8234.620 0.542 14.401 10 14.141 11 0.258 15 8343.959 0.907 14.369 9 14.046 8 0.322 12 8383.816 0.548 14.429 8 14.075 8 0.354 11 ------------------------------------------------ PHOTOMETRIC DATA FOR V514 Cyg PERIOD: 5.098910 EPOCH OF MAXIMUM: 2,448,157.800 ------------------------------------------------ HJD - PHASE V s.d. R s.d. V-R s.d. 2,440,000 ------------------------------------------------ 7716.758 0.503 11.622 3 10.485 2 1.136 4 7718.746 0.892 11.428 2 10.365 2 1.063 3 7720.800 0.295 11.410 2 10.320 2 1.089 3 7774.883 0.902 11.370 2 10.316 1 1.057 2 7825.736 0.876 11.522 2 10.440 2 1.084 3 7837.657 0.214 11.268 3 10.210 3 1.056 4 7842.642 0.191 11.267 2 10.186 1 1.077 2 7844.619 0.579 11.690 2 10.531 2 1.156 3 7844.619 0.579 11.690 2 10.531 2 1.156 3 7896.538 0.761 11.805 3 10.639 2 1.169 4 8060.699 0.956 11.084 2 10.067 2 1.016 3 8157.765 0.993 11.033 2 10.033 2 1.000 3 8545.644 0.064 11.056 2 10.039 2 1.020 3 8594.535 0.653 11.767 3 10.608 2 1.161 4 ------------------------------------------------ PHOTOMETRIC DATA FOR V759 Cyg PERIOD: 0.359800 EPOCH OF MAXIMUM: 2,448,535.800 ------------------------------------------------ HJD - PHASE V s.d. R s.d. V-R s.d. 2,440,000 ------------------------------------------------ 8506.840 0.510 13.381 6 13.029 6 0.351 8 8527.679 0.428 13.299 7 12.936 7 0.365 10 8528.668 0.178 12.910 6 12.654 6 0.257 8 8528.742 0.384 13.212 7 12.889 7 0.324 10 8528.792 0.523 13.317 10 12.967 8 0.351 13 8535.610 0.473 13.289 8 12.985 8 0.305 11 8535.723 0.785 13.419 8 13.129 9 0.290 12 8535.800 0.999 12.428 5 12.309 6 0.118 8 8536.609 0.250 13.072 6 12.778 6 0.294 8 8536.691 0.477 13.314 7 12.929 7 0.384 10 8545.580 0.182 12.920 6 12.680 6 0.236 8 8545.646 0.367 13.215 7 12.889 7 0.325 10 8545.688 0.483 13.318 7 12.971 7 0.347 10 ------------------------------------------------ PHOTOMETRIC DATA FOR V789 Cyg PERIOD: 0.288552336 EPOCH OF MAXIMUM: 2,447,660.000 ------------------------------------------------ HJD - PHASE V s.d. R s.d. V-R s.d. 2,440,000 ------------------------------------------------ 8580.544 0.215 13.478 7 13.099 8 0.376 11 8580.605 0.428 13.279 6 12.914 6 0.361 8 8594.572 0.831 13.053 7 12.716 8 0.334 11 8600.541 0.516 13.207 7 12.843 7 0.361 10 8600.572 0.625 13.121 8 12.766 8 0.352 11 8681.975 0.730 13.448 11 13.089 11 0.352 16 8682.922 0.013 13.368 9 13.005 12 0.353 15 8682.951 0.115 13.200 11 12.805 10 0.389 15 8702.878 0.173 13.140 13 12.805 14 0.326 19 8702.933 0.362 13.095 9 12.702 9 0.385 13 8705.936 0.769 13.517 11 13.172 12 0.343 16 8761.882 0.655 13.225 8 12.866 8 0.356 11 ------------------------------------------------ PHOTOMETRIC DATA FOR V894 Cyg PERIOD: 0.571403 EPOCH OF MAXIMUM: 2,448,551.750 ------------------------------------------------ HJD - PHASE V s.d. R s.d. V-R s.d. 2,440,000 ------------------------------------------------ 8367.795 0.064 12.576 4 12.406 4 0.167 6 8367.903 0.254 13.063 4 12.770 5 0.289 6 8495.854 0.177 12.873 6 12.617 5 0.248 8 8496.715 0.684 13.519 9 13.193 9 0.321 13 8506.814 0.359 13.233 4 12.903 6 0.325 7 8520.593 0.472 13.427 8 13.044 8 0.376 11 8524.757 0.760 13.486 8 13.133 7 0.349 11 8528.643 0.560 13.477 6 13.131 6 0.344 8 8551.678 0.873 13.631 8 13.288 8 0.340 11 8551.729 0.962 12.780 5 12.614 5 0.160 7 8761.873 0.732 13.522 7 13.179 8 0.341 11 ------------------------------------------------ PHOTOMETRIC DATA FOR CE Del PERIOD: 0.850000 EPOCH OF MAXIMUM: 2,448,546.590 ------------------------------------------------ HJD - PHASE V s.d. R s.d. V-R s.d. 2,440,000 ------------------------------------------------ 8528.670 0.918 13.108 5 12.734 6 0.374 8 8535.654 0.134 12.988 5 12.592 5 0.395 7 8535.706 0.195 12.862 5 12.491 5 0.370 7 8536.601 0.248 12.863 5 12.483 4 0.380 6 8536.634 0.287 12.843 5 12.447 4 0.395 6 8536.731 0.402 13.111 6 12.705 6 0.405 8 8545.641 0.883 12.912 6 12.537 6 0.373 8 8546.632 0.049 13.217 6 12.807 6 0.409 8 8546.672 0.096 13.042 6 12.636 6 0.404 8 8546.686 0.112 12.987 6 12.616 6 0.369 8 ------------------------------------------------ PHOTOMETRIC DATA FOR VZ Dra PERIOD: 0.3210308 EPOCH OF MAXIMUM: 2,448,528.678 ------------------------------------------------ HJD - PHASE V s.d. R s.d. V-R s.d. 2,440,000 ------------------------------------------------ 8503.705 0.210 12.558 4 12.426 4 0.125 6 8528.602 0.762 13.019 4 12.818 5 0.201 6 8528.631 0.853 12.924 4 12.747 5 0.176 6 8528.666 0.963 12.517 4 12.427 4 0.089 6 8535.591 0.533 12.931 4 12.744 5 0.183 6 8535.613 0.603 12.995 5 12.790 5 0.204 7 8535.648 0.710 13.034 5 12.807 6 0.225 8 8536.594 0.657 13.036 4 12.828 4 0.204 6 8551.575 0.324 12.740 4 12.566 4 0.170 6 8654.012 0.410 12.859 5 12.688 5 0.166 7 8681.825 0.048 12.401 4 12.310 5 0.081 6 8681.855 0.140 12.534 4 12.429 5 0.096 6 8681.944 0.419 12.859 5 12.685 5 0.166 7 ------------------------------------------------ PHOTOMETRIC DATA FOR AV Dra PERIOD: 0.555500 EPOCH OF MAXIMUM: 2,448,149.640 ------------------------------------------------ HJD - PHASE V s.d. R s.d. V-R s.d. 2,440,000 ------------------------------------------------ 7706.818 0.841 13.245 8 12.918 10 0.323 13 7711.745 0.710 13.198 8 12.823 10 0.370 13 7711.794 0.799 13.313 11 12.939 7 0.368 13 7713.736 0.295 12.900 5 12.574 4 0.321 6 7713.761 0.340 12.996 5 12.655 5 0.335 7 7713.824 0.452 13.069 5 12.724 4 0.339 6 7718.669 0.174 12.732 5 12.477 4 0.248 6 7718.862 0.522 13.134 6 12.805 7 0.324 9 7771.698 0.637 13.135 6 12.825 6 0.303 8 7774.669 0.984 12.462 4 12.283 4 0.173 6 7774.692 0.027 12.467 4 12.313 5 0.147 6 7774.717 0.072 12.559 4 12.343 5 0.209 6 7774.721 0.078 12.587 3 12.334 3 0.245 4 7774.775 0.176 12.704 3 12.459 4 0.239 5 8149.637 0.995 12.390 3 12.251 3 0.135 4 8495.680 0.934 12.717 5 12.572 5 0.134 7 8496.601 0.592 13.119 5 12.767 5 0.345 7 8503.651 0.284 12.856 4 12.582 4 0.266 6 ------------------------------------------------ PHOTOMETRIC DATA FOR BX Dra PERIOD: 0.579000 EPOCH OF MAXIMUM: 2,448,528.630 ------------------------------------------------ HJD - PHASE V s.d. R s.d. V-R s.d. 2,440,000 ------------------------------------------------ 8528.586 0.924 10.817 2 10.613 3 0.202 4 8528.626 0.993 11.078 3 10.880 3 0.196 4 8535.582 0.007 11.094 3 10.876 3 0.215 4 8535.635 0.098 10.802 2 10.582 3 0.217 4 8536.605 0.775 10.558 2 10.330 2 0.224 3 8545.571 0.260 10.563 2 10.365 3 0.193 4 8551.534 0.558 10.954 2 10.741 2 0.209 3 8647.926 0.038 11.033 3 10.796 5 0.230 6 8647.987 0.144 10.660 2 10.453 3 0.202 4 8663.936 0.688 10.624 3 10.403 4 0.216 5 8672.934 0.229 10.601 4 10.362 4 0.232 6 8675.000 0.798 10.616 3 10.375 3 0.235 4 8678.820 0.396 10.815 3 10.625 3 0.184 4 8681.862 0.650 10.698 2 10.479 3 0.209 4 8681.985 0.862 10.699 3 10.497 3 0.192 4 ------------------------------------------------