# IBVS 3150-t1.txt #Object: SV Cen #Author: Z. Kviz #IAU COMMISSION 27 UNPUBLISHED DATA FILE 177 #Comment: OCR-ed FROM PAPER SOURCE - MIGHT CONTAIN ERRORS! #IBVSdataKey: photometry IAU COMMISSION 27 UNPUBLISHED DATA FILE 177 20 pages, including cover sheet February, 1988 UBV OBSERVATIONS OF SV CEN - SIDING SPRING Tables contain differential magnitudes SV Cen - HD 102503. Some observations are in all three colours UBV, others only in B and V. Warning for users of the data who want to use it for light curve solution programme: As the period is changing quite fast, ephemeris should be interpolated for any observations done even few weeks before or after any timing of the minimum. See also discussion in the paper in the IBVS "SV Cen - UBV light curve 1974-79". Typescript sent for publication in Feb. 1988. Z. Kviz School of Physics University of New South Wales Kensington, N.S.W. 2033 Australia 15/16 May 1976 HJD 2440000.+ Delta V HJD 2440000.+ Delta B 2913.8887 .753 2913.8908 .732 .8979 .766 .9003 .750 .9071 .778 .9091 .760 .9147 .784 .9167 .769 .9224 .792 .9244 .781 .9300 .811 .9326 .803 .9393 .827 .9418 .801 .9480 .833 .9502 .812 .9552 .841 .9571 .826 .9622 .858 .9544 .842 .9697 .861 .9722 .849 .9773 .882 .9793 .858 .9847 .899 .9869 .891 .9921 .910 .9941 .903 .9995 .926 2914.0015 .909 2914.0069 .941 .0108 .927 .0171 .971 .0185 .956 .0255 .976 .0275 .972 .0322 .890 .0342 .994 .0395 .017 .0414 .009 .0467 .028 .0487 .022 .0535 .042 .0553 .044 .0603 .077 .0624 .051 .0689 .101 .0711 .078 .0754 .111 .0788 .112 .0841 .149 .0862 .130 .0924 .159 .0944 .157 .0994 .184 .1014 .181 .1075 .203 .1099 .201 15/16 May 1976 - contd. 2914.1142 .235 2914.1163 .239 .1212 .254 .1233 .253 .1283 .269 .1303 .282 .1356 .318 .1377 .138 .1425 .349 .1447 .349 .1506 .376 .1525 .388 .1572 .405 .1591 .407 .1649 .426 .1669 .419 .1730 .453 .1753 .443 .1802 .462 .1823 .468 .1873 .475 .1895 .488 .1954 .480 .1981 .472 .2047 .481 .2068 .454 .2133 .454 .2155 .430 16/17 May 1976 HJD 2440000.+ Delta V HJD 2440000.+ Delta B 2914.8554 1.173 2914.8576 1.184 .8646 1.195 .8712 1.233 .8761 1.241 .8782 1.247 .8832 1.273 .8853 1.279 .8906 1.299 .8927 1.304 .8981 1.341 .9030 1.342 .9065 1.375 .9086 1.387 .9174 1.417 .9180 1.434 .9247 1.462 .9266 1.486 .9316 1.506 .9756 1.823 .9738 1.776 .9822 1.873 .9803 1.818 .9891 1.920 .9873 1.875 .9960 1.972 .9940 1.911 2915.0024 2.010 2915.0004 1.946 .0087 2.052 .0068 1.987 .1108 1.514 .1088 1.535 .1184 1.462 .1163 1.476 .1256 1.414 .1238 1.429 18/19 May 1976 HJD 2440000.+ Delta V HJD 2440000.+ Delta B 2916.8478 1.148 2916.8503 1.121 .8567 1.122 .8589 1.100 .8649 1.089 .8675 1.066 .8732 1.072 .8754 1.042 .8809 1.056 .8837 1.021 .8891 1.022 .8913 1.004 .8968 1.008 .8988 .975 .9040 .985 .9067 .958 .9127 .964 .9154 .949 .9210 .944 .9232 .943 .9280 .930 .9303 .902 .9365 .915 .9386 .895 .9434 .902 .9454 .874 .9515 .882 .9537 .860 .9599 .876 .9643 .831 .9724 .831 .9756 .811 .9976 .813 2917.0032 .766 2917.0081 .790 .0105 .752 .0153 .768 .0174 .771 .0251 .763 .0272 .728 .0334 .771 .0362 .740 .0428 .759 .0454 .732 19/20 May 1976 HJD 2440000.+ Delta V HJD 2440000.+ Delta B 2917.8622 .789 2917.8648 .768 .8697 .795 .8721 .767 .8790 .784 .8814 .766 .8880 .782 .8900 .762 .8978 .782 .8998 .762 .9065 .783 .9085 .757 .9166 .787 .9185 .761 .9292 .788 .9352 .769 .9330 .792 .9460 .780 .9437 .795 .9563 .782 .9543 .795 .9711 .784 .9665 .797 .9882 .794 .9842 .817 2918.0038 .812 2918.0003 .829 .1052 .833 .0132 .839 .0253 .837 .0232 .860 .0600 .894 .0578 .911 .0715 .920 .0692 .937 .0825 .950 .0799 .965 .0935 .965 .0913 .972 .1056 .994 .1036 1.006 .1167 1.012 .1147 1.030 .1281 1.049 .1259 1.054 .1398 1.092 .1379 1.075 .1501 1.097 .1481 1.099 .1598 1.134 .1577 1.147 .1713 1.164 .1692 1.174 .2112 1.345 .2091 1.322 21/22 May 1976 HJD 2440000.+ Delta V HJD 2440000.+ Delta B 2919.9746 1.985 2919.9755 2.038 .9793 2.007 .9811 2.101 .9846 2.042 .9866 2.137 .9902 2.060 .9935 2.107 .9998 2.070 2920.0018 2.102 2920.0060 2.036 .0076 2.076 .0182 1.994 .0136 2.041 .0273 1.942 .0456 1.809 .0512 1.746 .0531 1.757 22/23 June 1976 HJD 2440000.+ Delta V HJD 2440000.+ Delta B 2951.9192 .741 2951.9210 .699 .9281 .731 .9299 .701 .9359 .722 .9391 .687 .9452 .717 .9558 .687 .9530 .711 .9639 .706 .9616 .706 .9732 .683 .9709 .700 .9824 .680 .9789 .733 .9902 .705 .9881 .719 .9985 .700 .9961 .745 23/24 June 1976 HJD 2440000.+ 2952.8691 .882 2952.8712 .320 .8768 .896 .8789 .298 29/30 June 1976 HJD 2440000.+ Delta V HJD 2440000.+ Delta B HJD 2440000.+ Delta U 2958.8625 1.126 2958.8646 1.127 2958.8653 1.009 .8730 1.166 .8750 1.160 .8757 1.043 .8826 1.194 .8843 1.186 .8850 1.079 .9039 1.269 .9056 1.268 .9070 1.164 .9129 1.300 .9153 1.300 .9154 1.209 .9213 1.345 .9228 1.336 .9235 1.231 .9299 1.371 .9320 1.370 .9326 1.269 .9426 1.427 .9444 1.415 .9450 1.306 .9516 1.461 .9536 1.446 .9542 1.346 .9603 1.486 .9621 1.469 .9628 1.367 .9687 1.511 .9702 1.475 .9708 1.383 .9767 1.497 .9784 1.474 .9790 1.380 .9849 1.489 .9873 1.465 .9873 1.373 .9932 1.460 .9949 1.446 .9955 1.338 2959.0012 1.448 2959.0043 1.412 2959.0050 1.319 .0124 1.410 .0142 1.382 .0149 1.288 .0211 1.374 .0228 1.349 .0235 1.266 .0297 1.352 .0315 1.326 .0322 1.238 .0389 1.304 .0406 1.289 .0414 1.201 .0484 1.269 .0499 1.268 .0506 1.182 2/3 July 1976 HJD 244000.+ Delta V HJD 244000.+ Delta B HJD 244000.+ Delta U 2961.8543 .734 2961.8558 .705 2961.8573 .612 .8629 .725 .8647 .705 .8736 .597 .8712 .718 .8736 .697 .8821 .597 .8795 .714 .8812 .701 .8907 .601 .8877 .721 .8901 .706 .8997 .599 .8972 .722 .8991 .698 .9104 .598 .9073 .722 .9096 .698 .9325 .612 .9300 .728 .9318 .705 .9411 .610 .9387 .734 .9405 .706 Primary minimum of SV Cen - 8/9 July 1977 Siding Spring HJD 2440000.+ Delta V HJD 2440000.+ Delta B 3332.9016 1.603 3332.8997 1.584 .9112 .665 .9097 .629 .9174 .708 .9158 .685 .9233 .770 .9216 .735 .9293 .812 .9281 .783 .9254 .869 .9339 .822 .9412 .903 .9396 .871 .9464 .958 .9448 .912 .9525 2.007 .9505 .946 .9584 .052 .9567 .992 .9644 .073 .9627 2.015 .9720 .104 .9703 .066 .9780 .110 .9761 .075 .9840 .106 .9822 .078 .9904 .079 .9887 .044 .9964 .052 .9945 .024 3333.0023 .002 3333.0006 1.975 .0093 1.950 .0073 .954 .0138 .900 .0219 .848 .0201 .860 .0281 .805 .0262 .781 .0354 .735 .0333 .744 .0443 .673 .0423 .655 .0518 .614 .0497 .682 7/8 May 1978 +(8/9 May) HJD 2440000.+ Delta V HJD 2440000.+ Delta B HJD 2440000.+ Delta U 3635.9615 .815 3635.9637 .801 3635.9579 .728 .9737 .813 .9769 .794 .9779 .711 .9868 .804 .9888 .792 .9896 .696 3636.0028 .804 3636.0055 .788 3636.0064 .709 .0170 .794 .0200 .777 .0222 .700 .0329 .803 .0361 .781 .0376 .694 .0506 .793 .0524 .785 .0532 .692 .0607 .796 .0624 .781 .0632 .697 .0709 .792 .0727 .769 .0733 .692 .0803 .795 .0822 .776 .0829 .708 .0932 .811 .0959 .791 .0968 .710 .1066 .810 .1087 .789 .1100 .720 .1200 .823 .1224 .808 .1232 .721 .1344 .831 .1363 .812 .1370 .738 3636.9141 .760 3636.9154 .689 3636.9174 .595 SV Cen I 14/15 May 1978 HJD 2440000.+ Delta V HJD 2440000.+ Delta B HJD 2440000.+ Delta U 3642.8692 .980 3642.8734 .975 3642.8749 .914 .8822 1.008 .8843 1.006 .8853 .940 .8940 1.032 .8967 1.031 .8976 .977 .9056 1.062 .9077 1.067 .9086 .999 .9166 1.096 .9194 1.091 .9203 1.044 .9289 1.136 .9315 1.121 .9325 1.074 .9423 1.166 .9444 1.174 .9453 1.128 .9662 1.261 .9569 1.220 .9579 1.180 .9779 1.314 .9686 1.253 .9695 1.221 .9877 1.328 .9799 1.306 .9807 1.256 3643.0003 1.362 .9899 1.324 .9907 1.299 .0083 1.411 3643.0003 1.365 3643.0011 1.360 .0187 1.465 .0106 1.426 .0113 1.404 .0281 1.521 .0207 1.489 .0216 1.486 .0371 1.563 .0300 1.528 .0307 1.536 .0449 1.634 .0387 1.586 .0394 1.594 .0526 1.664 .0462 1.643 .0469 1.649 .0619 1.736 .0547 1.697 .0556 1.718 .0704 1.807 .0634 1.759 .0643 1.808 .0781 1.854 .0720 1.831 .0728 1.878 .0856 1.909 .0795 1.897 .0803 1.966 .0936 1.952 .0870 1.952 .0878 2.032 .1016 2.025 .0951 2.009 .0959 2.088 .1095 2.058 .1029 2.072 .1037 2.161 .1173 2.090 .1111 2.101 .1118 2.195 .1252 2.050 .1188 2.113 .1196 2.206 .1340 2.030 .1269 2.095 .1277 2.205 .1430 1.994 .1357 2.059 .1365 2.174 14/15 May 1978 - contd. HJD 2440000.+ Delta V HJD 2440000.+ Delta B HJD 2440000.+ Delta U 3643.1523 1.908 3643.1445 2.000 3643.1454 2.098 .1616 1.857 .1542 1.936 .1552 1.994 .1710 1.771 .1633 1.857 .1641 1.884 .1801 1.686 .1727 1.773 .1736 1.825 .1899 1.629 .1818 1.701 .1830 1.731 .1995 1.560 .1917 1.635 .1925 1.653 .2096 1.515 .2015 1.550 .2028 1.545 .2113 1.472 2.2122 1.478 SV Cen 15/16 May 1978 HJD 2440000.+ Delta V HJD 2440000.+ Delta B HJD 2440000.+ Delta U 3643.8555 1.198 3643.8577 1.170 3643.8595 1.068 .8650 1.224 .8666 1.204 .8674 1.102 .8728 1.252 .8744 1.242 .8752 1.145 .8802 1.269 .8818 1.265 .8826 1.162 .8890 1.310 .8910 1.308 .8920 1.190 .8977 1.341 .8993 1.326 .9002 1.219 .9057 1.370 .9071 1.358 .9080 1.240 .9134 1.406 .9149 1.391 .9159 1.270 .9215 1.430 .9230 1.413 .9241 1.300 .9297 1.459 .9312 1.442 .9320 1.339 .9378 1.487 .9399 1.471 .9408 1.355 .9463 1.491 .9477 1.469 .9486 1.363 .9542 1.498 .9556 1.475 .9565 1.368 .9620 1.487 .9637 1.470 .9645 1.359 .9706 1.469 .9724 1.439 .9733 1.333 .9795 1.446 .9812 1.405 .9822 1.297 .9876 1.404 .9896 1.375 .9904 1.278 .9965 1.386 .9981 1.350 .9989 1.259 3644.0053 1.359 3644.0069 1.324 3644.0078 1.225 .0138 1.328 .0155 1.295 .0163 1.206 .0220 1.292 .0236 1.259 .0247 1.184 .0309 1.265 .0326 1.247 .0334 1.144 .0393 1.244 .0410 1.217 .0418 1.119 .0474 1.209 .0496 1.206 .0505 1.125 .0571 1.178 .0590 1.164 .0599 1.080 .0666 1.150 .0685 1.136 .0694 1.051 .0764 1.122 .0782 1.112 .0793 1.029 .0846 1.101 .0864 1.087 .0874 1.005 .0935 1.099 .0956 1.052 .0967 .968 15/16 May 1978 - contd. HJD 2440000.+ Delta V HJD 2440000.+ Delta B HJD 2440000.+ Delta U 3644.1027 1.068 3644.1045 1.048 3644.1055 .964 .1117 1.040 .1136 1.025 .1145 .940 .1210 1.010 .1225 .992 .1232 .900 .1290 .999 .1308 .978 .1316 .888 .1377 .983 .1393 .968 .1402 .894 SV Cen 12/13 February 1979 HJD 2440000.+ Delta V HJD 2440000.+ Delta B HJD 2440000.+ Delta U 3917.0378 .878 3917.0395 .858 3917.0400 .785 .0459 .857 .0473 .852 .0478 .777 .0957 .790 .0975 .773 .0982 .682 .1046 .786 .1064 .756 .1071 .660 .1151 .770 .1166 .744 .1171 .660 .1224 .767 .1238 .748 .1243 .653 .1413 .752 .1421 .714 .1426 .624 .1616 .738 .1625 .710 .1630 .620 .1672 .734 .1681 .706 .1685 .615 .1727 .741 .1736 .701 .1740 .616 .1781 .721 .1790 .697 .1794 .605 .1864 .721 .1878 .710 .1881 .612 .1943 .724 .1954 .694 .1959 .593 .2175 .715 .2187 .702 .2193 .607 .2405 .736 .2417 .710 .2423 .608 .2501 .723 .2513 .704 .2518 .607 .2564 .728 .2574 .710 .2578 .603 13/14 February 1979 3918.0085 .815 3918.0104 .786 3918.0110 .713 SV Cen 15/16 February 1979 HJD 2440000.+ Delta V HJD 2440000.+ Delta B HJD 2440000.+ Delta U 3919.9320 1.176 3919.9343 1.164 3919.9350 1.145 3920.0778 2.029 3920.0802 2.057 3920.0815 2.160 .0914 2.038 .0937 2.070 .0945 2.175 .1008 2.022 .1033 2.041 .1053 2.136 .1113 1.964 .1136 1.981 .1146 2.064 .1208 1.908 .1227 1.914 .1234 1.989 .2421 1.198 .2441 1.177 .2447 1.135 .2502 1.171 .2518 1.153 .2523 1.121 16/17 February 1979 3920.9272 1.505 3920.9291 1.483 3920.9289 1.386 .9373 1.505 .9391 1.447 .9415 1.361 SV Cen 20/21 February 1979 HJD 2440000.+ Delta V HJD 2440000.+ Delta B HJD 2440000.+ Delta U 3925.0265 1.900 3925.0289 1.955 3925.0297 2.022 .0371 1.992 .0388 2.020 .0395 2.122 .0458 2.029 .0479 2.073 .0488 2.188 .0539 2.061 .0553 2.115 .0558 2.231 .0609 2.073 .0623 2.106 .0629 2.234 .0676 2.082 .0693 2.103 .0700 2.222 .0749 2.084 .0764 2.107 .0866 2.114 .0837 2.008 .0857 2.018 .0954 2.054 .0927 1.968 .0947 1.980 .1030 2.005 .1003 1.895 .1022 1.890 .1263 1.754 .1240 1.712 .1256 1.707 SV Cen 6/7 July 1979 HJD 2440000.+ Delta V HJD 2440000.+ Delta B HJD 2440000.+ Delta U 4061.0412 2.006 4061.0437 2.029 4061.0445 2.102 .0514 2.055 .0538 2.070 .0547 2.177 .0616 2.051 .0638 2.081 .0651 2.168 .0721 2.048 .0744 2.033 .0753 2.131 .0830 1.986 .0849 1.990 .0856 2.067