------------------------------------------------------------------- THE ASTRONOMER Electronic Circular No 1078 1996 May 16 17.24UT Ed:Guy M Hurst, 16,Westminster Close, Kempshott Rise, Basingstoke, Hants, RG22 4PP,England. Telephone/FAX(0256)471074 Int:+44256471074 INTERNET: GUY@TAHQ.DEMON.CO.UK GMH at AST.STAR.RL.AC.UK WORLD WIDE WEB http://www.demon.co.uk/astronomer ------------------------------------------------------------------- EM CYGNI Professional astronomers have suggested this Z Cam star being the only one with known eclipses should receive our attention and an e-chart and sequence follows. Please report observations monthly to TA and the BAAVSS. \\\\\\EM Cygni c V930 Cyg LB 12.9-13.9p S,400,3,S -C,19.6472, 30.5050,2000 O,158,197,11.9,14.4p -L,R,EM -T,type UGZ+E;Seq:AAVSO -S,TA960515 P,19h 38.7m +30 30' (2000) M,6,371,316 -L,R,71 M,11,272,229 -L,R,V930 R,11.0,345,223,A,R R,11.5,203,188,B,A R,11.9,249,223,C,R R,12.1,110,217,D,R R,12.5,233,219,E,A R,12.6,168,177,F,R R,13.4,163,235,G,R R,13.7,140,206,H,R R,14.0,146,184,J,B M,9,78,217,110,244,324,37 M,10,53,76,226,306,81,175,63,160,131,295,40,77,24,297 M,10,251,108,398,221,339,176 M,11,239,13,34,150,100,251,46,51,160,328 M,11,80,395,53,269,22,135,248,89,249,197,360,203,377,32 M,11,248,343,335,377,340,116 M,12,55,34,150,40,119,77,154,28,234,98,221,112,155,3 M,12,212,180,59,91,20,169,44,117,81,187,92,176,78,166 M,12,22,254,72,21,228,268,113,337,152,313,146,327 M,12,61,309,5,213,120,373,25,182,223,105,226,317,174,90 M,12,85,396,181,45,106,260,205,349,78,21,119,261 M,12,146,399,112,377,101,390,11,186,77,285,56,132,198,178 M,12,47,126,363,74,308,48,345,166,371,144,322,371,297,33 M,12,394,146,380,396,366,306,336,160,330,296,317,232,398,353 M,12,312,219,292,262,320,274,318,394,304,298,354,272,355,100 M,13,233,3,241,66,18,44,161,20,113,193,103,198 M,13,110,126,100,110,37,174,228,109,47,110,163,112,81,83 M,13,233,164,156,274,160,272,159,178,186,340,215,306 M,13,51,228,108,308,85,85,158,281,232,206 M,13,224,29,75,108,241,359,146,148,209,77,170,311,9,321 M,13,55,141,188,252,194,218,34,123,342,26,312,1,297,17 M,13,396,224,278,263,352,41,399,163,290,115,306,125,312,381 M,13,283,364,348,273,345,234,375,246,303,14,375,89,358,322 M,13,317,130,304,55,390,381,385,195,362,261,251,254,304,369 M,13,384,244,283,328,249,117 M,14,187,23,223,46,121,77,48,58,223,49,96,276,6,65 M,14,189,22,17,117,199,233,41,61,220,318,76,231,32,239 M,14,161,335,200,230,342,40,353,156,350,155,309,381,367,83 M,14,310,51,393,314,379,92 M,15,377,14 E,188 ////// Basic chart automatically generated by CHART ver 1.6 Guy M Hurst ----------------------------------------------------------------------------- 1996 MID-ECLIPSE PREDICTIONS FOR EM CYG UNIVERSAL TIME, DAY DECIMAL FORM USED QUADRATIC EPHEMERIS USED STARTING EPOCH, JD = 2437882.8596000 PERIOD, DAYS = .290909170 QUADRATIC TERM = .0000E+00 GEOCENTRIC, CORRECTION BASED ON ELLIPTICAL EARTH ORBIT SUN DIRECTION AND SUN-EARTH DISTANCE ACCOUNTED FOR DAY COUNT AT VERNAL EQUINOX = 79.335 DAY COUNT AT PERIHELION = 3.50 OBSERVER LATITUDE = 52.00 DEGREES NORTH OBSERVER LONGITUDE = .00 DEGREES EAST TIMES GIVEN TO NEAREST 0.001 DAY TARGET OBJECT ALTITUDE GIVEN IN DEGREES CYCLE YDAY SLONG LTCOR MONTH DDATE ALTITUDE 42469 153.981 72.705 -.002262 June 2.979 48.60 42476 156.018 74.656 -.002360 June 5.015 57.32 42483 158.054 76.605 -.002456 June 7.051 64.53 42493 160.963 79.387 -.002588 June 9.960 48.73 42500 162.999 81.334 -.002676 June 11.997 57.44 42507 165.036 83.280 -.002761 June 14.033 64.62 42517 167.945 86.058 -.002878 June 16.942 48.87 42524 169.981 88.002 -.002955 June 18.978 57.56 42531 172.018 89.946 -.003029 June 21.014 64.72 42538 174.054 91.889 -.003099 June 23.051 68.39 42548 176.963 94.664 -.003193 June 25.960 57.70 42555 178.999 96.606 -.003254 June 27.996 64.81 42562 181.036 98.548 -.003312 June 30.032 68.41 42572 183.945 101.321 -.003388 July 2.941 57.84 42579 185.981 103.263 -.003436 July 4.978 64.92 42586 188.018 105.204 -.003480 July 7.014 68.43 42593 190.054 107.146 -.003520 July 9.050 66.59 42596 190.927 107.978 -.003535 July 9.923 58.00 42603 192.963 109.920 -.003570 July 11.959 65.03 42610 194.999 111.862 -.003600 July 13.996 68.45 42617 197.036 113.804 -.003625 July 16.032 66.51 42624 199.072 115.747 -.003647 July 18.068 60.28 42627 199.945 116.579 -.003655 July 18.941 65.14 42634 201.981 118.523 -.003670 July 20.977 68.46 42641 204.018 120.467 -.003681 July 23.014 66.41 42648 206.054 122.412 -.003688 July 25.050 60.12 42651 206.927 123.245 -.003690 July 25.923 65.26 42655 208.090 124.357 -.003690 July 27.087 51.76 42658 208.963 125.191 -.003690 July 27.959 68.48 42665 210.999 127.138 -.003686 July 29.996 66.31 42672 213.036 129.085 -.003678 August 1.032 59.95 42675 213.908 129.920 -.003674 August 1.905 65.38 42679 215.072 131.033 -.003666 August 3.068 51.56 42682 215.945 131.869 -.003660 August 3.941 68.49 42686 217.108 132.983 -.003649 August 5.105 42.41 42689 217.981 133.819 -.003641 August 5.978 66.20 42696 220.018 135.770 -.003618 August 8.014 59.77 42699 220.890 136.606 -.003607 August 8.887 65.51 42703 222.054 137.722 -.003591 August 10.050 51.35 42706 222.927 138.559 -.003578 August 10.923 68.50 42710 224.090 139.676 -.003560 August 12.087 42.19 42713 224.963 140.513 -.003545 August 12.959 66.08 42717 226.127 141.631 -.003525 August 14.123 32.91 42720 226.999 142.469 -.003508 August 14.996 59.57 42723 227.872 143.307 -.003491 August 15.869 65.64 42727 229.036 144.426 -.003467 August 17.032 51.12 42730 229.908 145.265 -.003448 August 17.905 68.50 42734 231.072 146.384 -.003421 August 19.069 41.95 42737 231.945 147.224 -.003400 August 19.941 65.95 42741 233.108 148.344 -.003372 August 21.105 32.67 42744 233.981 149.185 -.003349 August 21.978 59.37 42747 234.854 150.026 -.003326 August 22.851 65.78 42748 235.145 150.306 -.003318 August 23.141 23.68 42751 236.018 151.147 -.003294 August 24.014 50.88 42754 236.890 151.989 -.003269 August 24.887 68.51 42758 238.054 153.111 -.003235 August 26.051 41.70 42761 238.927 153.953 -.003208 August 26.923 65.82 42765 240.090 155.077 -.003172 August 28.087 32.43 42768 240.963 155.920 -.003144 August 28.960 59.16 42772 242.127 157.044 -.003105 August 30.124 23.44 42775 242.999 157.888 -.003075 August 30.996 50.64 42778 243.872 158.732 -.003045 August 31.869 68.51 42782 245.036 159.858 -.003003 September 2.033 41.44 42785 245.908 160.703 -.002971 September 2.905 65.68 42789 247.072 161.830 -.002928 September 4.069 32.17 42792 247.945 162.676 -.002894 September 4.942 58.93 42796 249.108 163.804 -.002849 September 6.106 23.19 42799 249.981 164.651 -.002814 September 6.978 50.38 42802 250.854 165.498 -.002778 September 7.851 68.50 42803 251.145 165.780 -.002766 September 8.142 14.81 42806 252.018 166.628 -.002730 September 9.015 41.17 42809 252.890 167.475 -.002693 September 9.888 65.52 42813 254.054 168.606 -.002643 September 11.051 31.90 42816 254.927 169.455 -.002604 September 11.924 58.70 42820 256.090 170.587 -.002552 September 13.088 22.93 42823 256.963 171.437 -.002512 September 13.960 50.11 42826 257.836 172.287 -.002472 September 14.833 68.49 42827 258.127 172.571 -.002459 September 15.124 14.57 42830 258.999 173.421 -.002418 September 15.997 40.90 42833 259.872 174.272 -.002376 September 16.870 65.36 42837 261.036 175.407 -.002320 September 18.033 31.63 42840 261.908 176.259 -.002277 September 18.906 58.46 42844 263.072 177.396 -.002220 September 20.070 22.67 42847 263.945 178.249 -.002176 September 20.943 49.84 42850 264.818 179.102 -.002131 September 21.815 68.47 42851 265.108 179.386 -.002116 September 22.106 14.33 42854 265.981 180.240 -.002071 September 22.979 40.61 42857 266.854 181.094 -.002026 September 23.852 65.20 42861 268.018 182.234 -.001965 September 25.016 31.34 42864 268.890 183.089 -.001918 September 25.888 58.21 42868 270.054 184.230 -.001855 September 27.052 22.40 42871 270.927 185.086 -.001808 September 27.925 49.56 42874 271.799 185.943 -.001760 September 28.798 68.45 42875 272.090 186.229 -.001744 September 29.089 14.08 42878 272.963 187.086 -.001695 September 29.961 40.32 42881 273.836 187.944 -.001647 September 30.834 65.02 42885 274.999 189.088 -.001581 October 1.998 31.06 42888 275.872 189.946 -.001531 October 2.871 57.96 42892 277.036 191.092 -.001465 October 4.034 22.13 42895 277.908 191.951 -.001414 October 4.907 49.27 42898 278.781 192.811 -.001363 October 5.780 68.42 42899 279.072 193.098 -.001346 October 6.071 13.83 42902 279.945 193.959 -.001295 October 6.944 40.02 42905 280.818 194.820 -.001244 October 7.816 64.84 42909 281.981 195.969 -.001175 October 8.980 30.77 42912 282.854 196.831 -.001123 October 9.853 57.70 42916 284.018 197.981 -.001053 October 11.016 21.85 42919 284.890 198.844 -.001000 October 11.889 48.98 42923 286.054 199.995 -.000930 October 13.053 13.58 42926 286.927 200.859 -.000876 October 13.926 39.72 42929 287.799 201.724 -.000823 October 14.799 64.65 42933 288.963 202.877 -.000752 October 15.962 30.47 42936 289.836 203.743 -.000698 October 16.835 57.43 42940 290.999 204.898 -.000626 October 17.999 21.57 42943 291.872 205.764 -.000572 October 18.872 48.68 42947 293.036 206.920 -.000499 October 20.035 13.32 42950 293.908 207.788 -.000445 October 20.908 39.42 42953 294.781 208.656 -.000390 October 21.781 64.46 42957 295.945 209.813 -.000317 October 22.944 30.17 42960 296.818 210.682 -.000263 October 23.817 57.17 42964 297.981 211.842 -.000190 October 24.981 21.29 42967 298.854 212.711 -.000135 October 25.854 48.39 42971 300.018 213.872 -.000062 October 27.017 13.07 42974 300.890 214.743 -.000007 October 27.890 39.12 42977 301.763 215.614 .000048 October 28.763 64.26 42981 302.927 216.776 .000121 October 29.927 29.87 42984 303.799 217.649 .000176 October 30.800 56.89 42988 304.963 218.812 .000249 October 31.963 21.01 42991 305.836 219.685 .000304 November 1.836 48.09 42995 306.999 220.850 .000377 November 3.000 12.82 42998 307.872 221.724 .000431 November 3.873 38.81 43001 308.745 222.599 .000486 November 4.745 64.06 43005 309.908 223.765 .000558 November 5.909 29.58 43008 310.781 224.641 .000612 November 6.782 56.62 43012 311.945 225.808 .000684 November 7.946 20.73 43015 312.818 226.685 .000738 November 8.818 47.79 43019 313.981 227.853 .000810 November 9.982 12.56 43022 314.854 228.731 .000863 November 10.855 38.51 43025 315.727 229.608 .000916 November 11.728 63.86 43029 316.890 230.779 .000987 November 12.891 29.28 43032 317.763 231.657 .001040 November 13.764 56.35 43036 318.927 232.828 .001110 November 14.928 20.45 43039 319.799 233.707 .001162 November 15.801 47.49 43043 320.963 234.880 .001231 November 16.964 12.31 43046 321.836 235.760 .001282 November 17.837 38.21 43053 323.872 237.814 .001401 November 19.873 28.99 43056 324.745 238.695 .001451 November 20.746 56.08 43060 325.908 239.870 .001518 November 21.910 20.18 43063 326.781 240.752 .001568 November 22.783 47.20 43067 327.945 241.928 .001633 November 23.946 12.07 43070 328.818 242.811 .001682 November 24.819 37.91 43077 330.854 244.871 .001794 November 26.856 28.71 43080 331.727 245.754 .001842 November 27.728 55.81 43084 332.890 246.932 .001904 November 28.892 19.91 43087 333.763 247.816 .001950 November 29.765 46.91 43094 335.799 249.880 .002057 December 1.801 37.62 43101 337.836 251.945 .002160 December 3.838 28.43 43108 339.872 254.011 .002261 December 5.874 19.65 43111 340.745 254.897 .002304 December 6.747 46.63 43118 342.781 256.965 .002400 December 8.784 37.34 43125 344.818 259.034 .002494 December 10.820 28.15 43132 346.854 261.104 .002585 December 12.857 19.40 43135 347.727 261.992 .002622 December 13.729 46.35 43142 349.763 264.063 .002708 December 15.766 37.06 43149 351.799 266.135 .002790 December 17.802 27.89 43156 353.836 268.208 .002869 December 19.839 19.15 43166 356.745 271.170 .002975 December 22.748 36.80 43173 358.781 273.245 .003044 December 24.784 27.63 43180 360.818 275.320 .003110 December 26.821 18.92 43190 363.727 278.284 .003196 December 29.730 36.54 ----- End Included Message -----