IAU COMMISION 27 UNPUBLISHED DATA FILE 86 July, 1981 UBV PHOTOMETRY OF RY Gem DOUGLAS S. HALL, TILMAN STUHLINGER and JOHN W. WILSON Dyer Observatory, Vanderbilt University Nashville. Tenessee, U.S.A. RY Gem (HD 58713) was observed during seven seasons with the Dyer Observatory 24-inch Seyfert reflector and the Kitt Peak National Observatory No. 3 16-inch reflector. All measurements were made differentially on the UBV system. The comparison star was BD+15 1574, which is a visual binary; both of its components were include in the diaphragm. The data have been corrected for differential atmospheric extinction and transformed to the stamdard system with five sets od transformation coefficients. The resulting five groups of observations are separated into Tables 1-5. Table 6 gives one-color (delta V) observations made at random times and transformed with the appropriate coefficients. The observations for 1967 through 1971 were made by Hall, those for 1975 by Stuhlinger, and those for 1979 by Wilson. The phases given in the tables were calculated with the ephemeris JD (Hel.) = 2439732.6328 + 9.300567xPhase. ***************************************************************************** ************ Data NOT VERIFIED !! MIGHT CONTAIN ERRORS! *************** ************ (retyped from the original manuscript) *************** ***************************************************************************** %UDF#86 %STARS RY Gem %COMP BD +15 1574 %AUTH D.S. Hall %LIEU Dyer %OBS Hall %DATE 1967 %TYPE Relative %HEAD JD Phase DV DB DU 2439782.960 0.4112 1.508 1.681 1.836 2439783.955 0.5181 1.552 1.705 1.854 2439783.959 0.5186 1.554 1.707 1.853 2439784.925 0.6224 1.493 1.690 1.870 2439785.920 0.7294 1.480 1.685 1.862 2439791.954 0.3783 1.491 1.682 1.857 2439797.771 0.0037 3.551 4.618 5.203 2439797.783 0.0050 3.536 4.561 5.223 2439797.796 0.0064 3.535 4.563 5.166 2439797.810 0.0079 3.539 4.608 5.153 2439797.823 0.0093 3.535 4.577 5.122 2439797.873 0.0146 3.403 4.336 4.722 2439797.883 0.0157 3.321 4.173 4.528 2439797.888 0.0162 3.271 4.084 4.415 2439797.897 0.0172 3.194 3.928 4.215 2439797.903 0.0179 3.152 3.838 4.005 2439797.913 0.0189 3.036 3.670 3.924 2439797.919 0.0196 2.974 3.575 3.808 2439797.931 0.0209 2.876 3.394 3.625 2439797.937 0.0215 2.819 3.306 3.523 2439797.956 0.0236 2.655 3.081 3.281 2439797.962 0.0242 2.603 2.999 3.217 2439797.968 0.0248 2.553 2.940 3.154 2439799.886 0.2311 1.469 1.680 1.845 2439799.967 0.2398 1.474 1.673 1.846 2439800.890 0.3391 1.478 1.676 1.835 2439800.929 0.3432 1.474 1.643 1.842 2439802.782 0.5425 1.527 1.699 1.844 2439802.787 0.5430 1.525 1.689 1.832 2439802.832 0.5479 1.531 1.706 1.849 2439802.836 0.5483 1.526 1.700 1.840 2439802.971 0.5628 1.515 1.697 1.847 2439803.963 0.6695 1.480 1.694 1.868 2439804.930 0.7734 1.473 1.684 1.843 2439807.743 0.0759 1.487 1.745 1.873 2439807.756 0.0773 1.500 1.687 1.870 2439807.825 0.0825 1.506 1.690 1.854 2439807.821 0.0842 1.519 1.695 1.846 2439807.835 0.0857 1.515 1.689 1.845 2439807.935 0.0965 1.510 1.698 1.846 2439807.946 0.0977 1.515 1.698 1.849 %LIEU Kitt Peak %OBS Hall %DATE 1968 %TYPE Relative %HEAD JD Phase DV DB DU 2440143.981 0.2283 1.462 1.666 1.880 2440143.984 0.2286 1.464 1.658 1.877 2440146.908 0.5430 1.544 1.710 1.867 2440146.912 0.5435 1.554 1.708 1.868 2440146.946 0.5471 1.527 1.703 1.884 2440146.950 0.5476 1.527 1.696 1.887 2440146.958 0.5484 1.530 1.695 1.880 2440146.968 0.5495 1.530 1.693 1.877 2440147.006 0.5536 1.528 1.697 1.882 2440147.009 0.5539 1.520 1.698 1.866 2440147.016 0.5547 1.524 1.696 1.864 2440147.984 0.6587 1.497 1.681 1.892 2440149.960 0.8711 1.520 1.709 1.891 2440149.963 0.8714 1.519 1.709 1.905 2440149.992 0.8746 1.528 1.705 1.901 2440149.995 0.8749 1.531 1.680 1.895 2440150.880 0.9700 2.198 2.459 2.678 2440150.883 0.9704 2.224 2.488 2.703 2440150.891 0.9712 2.283 2.566 2.776 2443150.895 0.9717 2.293 2.606 2.808 2440150.899 0.9720 2.329 2.629 2.830 2440150.907 0.9730 2.379 2.701 2.903 2440150.911 0.9734 2.424 2.749 2.935 2440150.919 0.9742 2.474 2.824 3.012 2440150.928 0.9752 2.553 2.919 3.102 2440150.932 0.9756 2.589 2.953 3.131 2440150.935 0.9760 2.609 3.005 3.209 2440150.942 0.9767 2.689 3.077 3.263 2440150.946 0.9771 2.705 3.119 3.324 2440150.949 0.9775 2.737 3.151 3.353 2440150.953 0.9779 2.771 3.207 3.379 2440150.960 0.9787 2.821 3.288 3.498 2440150.964 0.9791 2.868 3.341 3.558 2440150.967 0.9794 2.910 3.403 3.576 2440150.972 0.9799 2.944 3.447 3.653 2440150.975 0.9803 2.974 3.502 3.717 2440150.976 0.9804 3.040 3.605 3.826 2440150.986 0.9814 3.080 3.676 3.891 2440150.990 0.9819 3.111 3.719 3.937 2440150.994 0.9823 3.140 3.806 4.003 2440150.997 0.9826 3.164 3.848 4.088 2440151.003 0.9833 3.245 3.974 4.210 2440151.008 0.9838 3.299 4.033 4.281 2440151.011 0.9841 3.330 4.102 4.374 2440151.015 0.9846 3.353 4.168 4.432 2440151.018 0.9849 3.382 4.229 4.504 2440151.023 0.9854 3.415 4.288 4.614 2440154.012 0.3068 1.474 1.684 1.890 2440154.015 0.3072 1.471 1.685 1.884 %LIEU Dyer %OBS Hall %DATE 1969-1971 %TYPE Relative %HEAD JD Phase DV DB DU 2440503.941 0.9313 1.540 1.701 1.899 2440503.944 0.9316 1.534 1.705 1.914 2440541.969 0.0201 2.920 3.469 3.641 2440876.894 0.0313 2.092 2.363 2.541 2440876.899 0.0318 2.041 2.323 2.487 2440876.913 0.0333 1.967 2.234 2.405 2440876.919 0.0340 1.953 2.194 2.376 2440876.928 0.0349 1.912 2.131 2.318 2440876.934 0.0356 1.892 2.099 2.273 2440876.943 0.0366 1.851 2.055 2.225 2440876.948 0.0371 1.830 2.028 2.195 2440885.924 0.0023 3.545 4.656 5.204 2440885.931 0.0030 3.562 4.647 5.215 2440885.943 0.0043 3.543 4.641 5.204 2440885.950 0.0051 3.544 4.616 5.175 2440927.841 0.5092 1.553 1.710 1.853 2440927.857 0.5109 1.550 1.698 1.848 2440927.863 0.5115 1.552 1.693 1.844 2440927.939 0.5197 1.552 1.709 1.850 2440927.945 0.5204 1.578 1.726 1.888 2440927.955 0.5214 1.548 1.706 1.863 2440927.962 0.5222 1.539 1.695 1.843 2440927.973 0.5234 1.536 1.698 1.848 2440927.978 0.5239 1.542 1.693 1.848 2440978.591 0.9658 1.962 2.185 2.443 2440978.598 0.9665 2.009 2.260 2.434 2440978.613 0.9682 2.056 2.325 2.526 2440978.621 0.9690 2.118 2.380 2.584 2440978.636 0.9706 2.221 2.509 2.724 2440978.644 0.9715 2.270 2.574 2.779 2440978.660 0.9732 2.391 2.736 2.934 2440978.667 0.9740 2.451 2.792 3.001 2440978.681 0.9755 2.558 2.945 3.146 2440978.688 0.9762 2.616 3.027 3.224 2440978.733 0.9811 3.035 3.602 3.837 2440978.743 0.9821 3.093 3.741 3.985 2440978.760 0.9840 3.263 4.035 4.349 2440978.770 0.9850 3.371 4.215 4.562 2440978.786 0.9868 3.443 4.441 4.820 2440978.796 0.9878 3.486 4.546 4.991 2440978.814 0.9898 3.494 4.556 5.043 2440978.824 0.9908 3.516 4.588 5.185 2440978.847 0.9933 3.545 4.623 5.181 2440978.858 0.9945 3.554 4.632 5.134 2440978.871 0.9959 3.539 4.662 5.219 2440978.878 0.9966 3.577 4.677 5.281 2440992.758 0.4891 1.559 1.702 1.839 2440992.764 0.4898 1.563 1.705 1.850 2440992.794 0.4930 1.562 1.712 1.863 2440992.799 0.4935 1.559 1.702 1.849 2441002.701 0.5581 1.538 1.690 1.858 2441002.711 0.5592 1.543 1.691 1.827 2441002.721 0.5603 1.544 1.690 1.835 2441002.728 0.5610 1.546 1.704 1.861 2441002.758 0.5643 1.531 1.689 1.862 2441006.681 0.9860 3.448 4.395 4.792 2441006.687 0.9867 3.487 4.480 4.916 2441006.698 0.9879 3.512 4.559 4.984 2441006.703 0.9884 3.521 4.558 5.014 2441006.715 0.9897 3.537 4.607 5.050 2441015.561 0.9409 1.526 1.705 1.897 2441015.566 0.9414 1.527 1.698 1.895 2441015.574 0.9423 1.578 1.705 1.936 2441015.579 0.9428 1.523 1.705 1.892 2441015.590 0.9440 1.524 1.704 1.902 2441015.595 0.9445 1.527 1.710 1.904 2441015.625 0.9478 1.539 1.714 1.916 2441015.630 0.9483 1.538 1.715 1.917 2441015.636 0.9489 1.538 1.714 1.922 2441015.646 0.9500 1.532 1.714 1.916 2441015.651 0.9506 1.534 1.715 1.921 2441015.671 0.9527 1.572 1.742 1.932 2441015.677 0.9534 1.587 1.754 1.952 2441015.688 0.9545 1.591 1.774 1.991 2441015.694 0.9552 1.608 1.788 1.984 2441015.705 0.9564 1.633 1.822 2.014 2441015.710 0.9569 1.651 1.834 2.020 2441015.755 0.9617 1.799 2.011 2.197 2441015.762 0.9625 1.833 2.039 2.230 2441015.768 0.9631 1.860 2.072 2.263 2441015.776 0.9640 1.899 2.118 2.323 2441015.784 0.9649 1.925 2.148 2.310 2441016.530 0.0451 1.556 1.722 1.892 %LIEU Dyer %OBS Stuhlinger %DATE 1975 %TYPE Relative %HEAD JD Phase DV DB DU 2442440.598 0.1613 1.506 1.709 1.767 2442440.602 0.1618 1.504 1.679 1.826 2442440.611 0.1627 1.504 1.711 1.928 2442440.633 0.1651 1.501 1.707 1.901 2442440.637 0.1655 1.501 1.711 1.908 2442440.647 0.1666 1.503 1.714 1.952 2442464.780 0.7613 1.489 1.687 1.879 2442464.788 0.7622 1.480 1.687 1.883 2442464.799 0.7633 1.484 1.689 1.881 2442465.719 0.8623 1.514 1.711 1.911 2442465.728 0.8632 1.503 1.707 1.906 2442465.736 0.8641 1.524 1.711 1.900 2442465.757 0.8664 1.513 1.707 1.911 2442465.766 0.8673 1.522 1.710 1.898 2442465.776 0.8684 1.522 1.712 1.911 2442472.714 0.6144 1.503 1.711 1.900 2442472.720 0.6150 1.511 1.706 1.890 2442472.7262 0.6157 1.522 1.708 1.899 2442472.734 0.6165 1.515 1.714 1.906 2442473.698 0.7202 1.475 1.692 1.879 2442473.705 0.7209 1.479 1.691 1.871 2442473.718 0.7223 1.476 1.685 1.864 2442473.7251 0.7231 1.481 1.690 1.895 2442475.673 0.9326 1.540 1.727 1.920 2442475.680 0.9333 1.553 1.732 1.892 2442475.687 0.9340 1.554 1.735 1.943 2442475.703 0.9358 1.550 1.740 1.936 2442475.710 0.9365 1.556 1.730 1.939 2442497.655 0.2961 1.480 1.705 1.882 2442497.674 0.2981 1.482 1.692 1.877 2442497.6891 0.2998 1.491 1.693 1.874 2442506.632 0.2613 1.454 1.707 1.930 2442506.640 0.2621 1.466 1.711 1.903 2442537.615 0.5926 1.499 1.713 1.896 2442537.624 0.5936 1.508 1.704 1.899 2442537.631 0.5943 1.519 1.729 1.918 2442537.639 0.5952 1.516 1.720 1.916 2442537.647 0.5960 1.537 1.750 1.964 %LIEU Dyer %OBS Wilson %DATE 1979 %TYPE Relative %HEAD JD Phase DV DB DU 2444215.7226 0.0233 2.663 3.062 3.225 2444215.7253 0.0236 2.627 3.024 3.206 2444215.7283 0.0239 2.616 2.988 3.178 2444215.7359 0.0247 2.537 2.893 3.069 2444215.7391 0.0251 2.524 2.861 3.062 2444215.7424 0.0254 2.490 2.843 3.003 2444215.7497 0.0262 2.439 2.770 2.952 2444215.7529 0.0265 2.410 2.742 2.938 2444215.7561 0.0269 2.387 2.717 2.887 2444215.7690 0.0283 2.301 2.590 2.770 2444215.7723 0.0286 2.272 2.551 2.723 2444215.7756 0.0290 2.253 2.528 2.703 2444215.7822 0.0297 2.205 2.465 2.666 2444215.7856 0.0301 2.190 2.444 2.623 2444215.7887 0.0304 2.170 2.420 2.603 2444215.7962 0.0312 2.121 2.363 2.550 2444215.7996 0.0316 2.109 2.338 2.527 2444215.8030 0.0319 2.078 2.324 2.490 2444215.8100 0.0327 2.037 2.266 2.444 2444215.8131 0.0330 2.018 2.241 2.428 2444215.8163 0.0334 1.995 2.231 2.386 2444215.8298 0.0348 1.927 2.141 2.335 2444215.8328 0.0351 1.913 2.120 2.297 2444215.8353 0.0355 1.906 2.114 2.305 2444215.8577 0.0378 1.804 2.008 2.182 2444215.8607 0.0381 1.793 1.984 2.162 2444215.8638 0.0385 1.783 1.975 2.147 2444215.8702 0.0392 1.754 1.935 2.106 2444215.8731 0.0395 1.747 1.926 2.110 2444215.8859 0.0408 1.706 1.866 2.049 2444215.8892 0.0412 1.691 1.858 2.047 2444215.8925 0.0416 1.682 1.855 2.035 2444215.8989 0.0422 1.667 1.832 2.026 2444215.9066 0.0431 1.646 1.804 1.997 2444215.9101 0.0434 1.633 1.803 1.994 2444215.9134 0.0438 1.623 1.801 1.980 2444215.9196 0.0445 1.612 1.786 1.963 2444222.8569 0.7904 1.477 1.664 1.829 2444222.8635 0.7911 1.484 1.669 1.848 2444222.8696 0.7917 1.473 1.667 1.841 2444226.7915 0.2134 1.494 1.694 1.886 2444220.7993 0.2142 1.486 1.685 1.863 2444226.8057 0.2149 1.485 1.699 1.879 2444240.7502 0.7143 1.442 1.619 1.852 2444240.7575 0.7150 1.501 1.688 1.843 2444240.7643 0.7158 1.460 1.657 1.870 %TITLE Random one-color bservations %TYPE Relative %HEAD JD Phase DV 2440522.961 0.9764 2.633 2441016.516 0.0440 1.604 2441016.521 0.0445 1.596 2441016.524 0.0448 1.586 2441016.529 0.0454 1.579 2442708.880 0.0070 3.58 2442708.883 0.0074 3.48 2442708.888 0.0079 3.44 2442708.893 0.0085 3.44 2442708.918 0.0112 3.47 2442708.920 0.0114 3.45 2442708.923 0.0117 3.47 2442736.723 0.0007 3.450 2442736.726 0.0011 3.416 2442736.759 0.0047 3.429 2442736.761 0.0049 3.458 2442736.766 0.0054 3.445 2442736.768 0.0056 3.443 2442736.772 0.0061 3.421 2442736.774 0.0062 3.455 2442736.798 0.0089 3.420 2442736.800 0.0090 3.470 2442736.826 0.0118 3.379 2442736.827 0.0120 3.369 2442736.829 0.0121 3.410 2442736.833 0.0126 3.416 2442736.835 0.0128 3.423 2442736.837 0.0130 3.422 2442736.874 0.0170 3.076