EMPC Ephemerides of Minor Planets and Comets Version 94/03/01 (c) 1991-1994 Oliver Montenbruck Name/number C/1996 B2 Hyakutake Reference MPEC 1996-C06 (February 10) Epoch 1996/ 5/ 1.400000 Perihelion passage time 1996/ 5/ 1.410870 Perihelion distance 0.2301957 Eccentricity (e) 1.0000000 Argument of perihelion 130.178070 deg Longitude of ascending node 188.060790 deg Inclination (i) 124.886070 deg Reference equinox J2000 Nongravitational parameters None Coma brightness (H,K,G) 5.50 10.00 0.000 mag Nucleus brightness (H,K,G) 14.00 5.00 0.035 mag The brightness is indicative only; for the nucleus, an absolute brightness of 15 percent fainter than P/Halley was assumed. Note, however, that this value is very uncertain. Coordinate type: Astrometric J2000 coordinates Perturbing planets: Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune Pluto Orbital elements at intermediate 40d standard epochs (J2000.0): Epoch Perihelion q e omega Omega i AU deg deg deg 1996/ 4/27 5/ 1.41088 0.2301957 0.9999998 130.17809 188.06079 124.88607 1996/ 3/18 5/ 1.41139 0.2302135 0.9999987 130.17550 188.06050 124.88462 Ephemeris: Date ET Ra Dec Delta R Magnitude dRA dDec El. Ph. Tail Moon h m s o ' " AU AU coma nuc. "/h "/h o o o o 1996/ 2/12 0 14 40 38.5 -24 47 39 1.424 1.830 8.9 17.2 24 5 97 32 289 12 1996/ 2/13 0 14 41 21.2 -24 45 20 1.391 1.814 8.8 17.2 24 6 98 33 289 20 1996/ 2/14 0 14 42 3.4 -24 42 41 1.357 1.797 8.7 17.1 24 7 99 33 289 33 1996/ 2/15 0 14 42 45.0 -24 39 41 1.324 1.780 8.6 17.0 23 8 100 33 289 46 1996/ 2/16 0 14 43 26.0 -24 36 17 1.290 1.763 8.5 17.0 23 9 101 33 289 60 1996/ 2/17 0 14 44 6.3 -24 32 28 1.256 1.745 8.4 16.9 23 10 101 34 289 75 1996/ 2/18 0 14 44 45.9 -24 28 12 1.223 1.728 8.3 16.8 22 11 102 34 289 89 1996/ 2/19 0 14 45 24.8 -24 23 28 1.189 1.711 8.2 16.7 22 12 103 34 289 104 1996/ 2/20 0 14 46 3.0 -24 18 12 1.155 1.694 8.1 16.7 22 14 104 34 289 118 1996/ 2/21 0 14 46 40.4 -24 12 21 1.122 1.676 8.0 16.6 21 15 105 35 290 132 1996/ 2/22 0 14 47 17.0 -24 5 54 1.088 1.659 7.9 16.5 21 17 106 35 290 145 1996/ 2/23 0 14 47 52.7 -23 58 46 1.054 1.641 7.8 16.4 20 19 107 35 290 158 1996/ 2/24 0 14 48 27.6 -23 50 55 1.021 1.624 7.6 16.3 20 21 108 35 290 168 1996/ 2/25 0 14 49 1.7 -23 42 14 0.987 1.606 7.5 16.3 19 23 109 36 290 169 1996/ 2/26 0 14 49 34.8 -23 32 41 0.954 1.588 7.4 16.2 19 25 110 36 290 160 1996/ 2/27 0 14 50 6.9 -23 22 9 0.920 1.570 7.3 16.1 18 28 111 36 290 149 1996/ 2/28 0 14 50 38.0 -23 10 32 0.886 1.552 7.1 16.0 18 30 111 36 290 138 1996/ 2/29 0 14 51 8.0 -22 57 43 0.853 1.534 7.0 15.9 17 34 112 37 290 126 1996/ 3/ 1 0 14 51 37.0 -22 43 34 0.819 1.516 6.9 15.8 16 37 113 37 290 115 1996/ 3/ 2 0 14 52 4.7 -22 27 54 0.786 1.498 6.7 15.7 16 41 114 37 290 103 1996/ 3/ 3 0 14 52 31.2 -22 10 33 0.752 1.479 6.6 15.5 15 46 115 37 290 91 1996/ 3/ 4 0 14 52 56.4 -21 51 16 0.719 1.461 6.4 15.4 14 51 116 37 289 79 1996/ 3/ 5 0 14 53 20.1 -21 29 49 0.686 1.442 6.3 15.3 13 57 117 38 289 67 1996/ 3/ 6 0 14 53 42.4 -21 5 50 0.652 1.424 6.1 15.2 12 63 118 38 289 54 1996/ 3/ 7 0 14 54 3.0 -20 38 59 0.619 1.405 5.9 15.0 12 71 120 38 289 42 1996/ 3/ 8 0 14 54 21.8 -20 8 45 0.586 1.386 5.8 14.9 10 80 121 38 289 29 1996/ 3/ 9 0 14 54 38.7 -19 34 35 0.553 1.367 5.6 14.7 9 91 122 38 288 16 1996/ 3/10 0 14 54 53.4 -18 55 44 0.520 1.348 5.4 14.6 8 104 123 38 288 5 1996/ 3/11 0 14 55 5.7 -18 11 20 0.487 1.329 5.2 14.4 6 119 124 38 288 13 1996/ 3/12 0 14 55 15.2 -17 20 10 0.455 1.310 5.0 14.2 5 137 125 38 287 26 1996/ 3/13 0 14 55 21.6 -16 20 46 0.422 1.291 4.7 14.0 3 160 127 38 286 40 1996/ 3/14 0 14 55 24.4 -15 11 8 0.390 1.271 4.5 13.8 0 189 128 38 286 55 1996/ 3/15 0 14 55 22.8 -13 48 36 0.357 1.252 4.2 13.6 -2 225 129 38 284 69 1996/ 3/16 0 14 55 16.1 -12 9 31 0.326 1.232 4.0 13.3 -6 272 131 38 283 84 1996/ 3/17 0 14 55 3.0 -10 8 48 0.294 1.212 3.7 13.1 -10 334 132 38 281 99 1996/ 3/18 0 14 54 41.8 -7 39 8 0.263 1.192 3.4 12.8 -16 418 134 37 279 114 1996/ 3/19 0 14 54 10.0 -4 29 46 0.233 1.172 3.0 12.5 -24 535 135 37 275 129 1996/ 3/20 0 14 53 23.6 0-24 35 0.203 1.152 2.7 12.1 -35 701 136 37 271 142 1996/ 3/21 0 14 52 16.2 5 0 59 0.175 1.131 2.3 11.8 -51 942 137 37 264 153 1996/ 3/22 0 14 50 36.4 12 23 49 0.150 1.111 1.8 11.4 -75 1294 137 38 255 154 1996/ 3/23 0 14 48 1.6 22 34 41 0.127 1.090 1.4 11.1 -113 1784 135 40 244 143 1996/ 3/24 0 14 43 40.8 36 22 60 0.111 1.070 1.0 11.0 -175 2357 129 47 231 125 1996/ 3/25 0 14 35 7.8 53 36 54 0.102 1.049 0.8 11.2 -280 2748 118 57 220 103 1996/ 3/26 0 14 11 32.9 71 48 13 0.104 1.028 0.7 11.6 -514 2606 104 71 209 83 1996/ 3/27 0 10 41 19.1 86 6 47 0.116 1.006 0.9 12.2-1915 965 91 83 154 70 1996/ 3/28 0 4 5 34.4 78 49 11 0.135 0.985 1.1 12.8 -495-1506 81 92 55 66 1996/ 3/29 0 3 32 30.8 70 2 21 0.159 0.963 1.3 13.4 -205-1131 73 98 48 68 1996/ 3/30 0 3 21 58.9 63 31 55 0.185 0.942 1.6 13.8 -116 -838 67 103 46 75 1996/ 3/31 0 3 16 45.6 58 39 60 0.213 0.920 1.8 14.2 -77 -634 62 106 46 85 1996/ 4/ 1 0 3 13 34.9 54 56 19 0.243 0.898 2.0 14.5 -56 -493 59 108 45 95 1996/ 4/ 2 0 3 11 23.2 52 0 27 0.273 0.876 2.1 14.7 -43 -392 56 109 45 107 1996/ 4/ 3 0 3 9 43.7 49 38 49 0.304 0.853 2.2 14.9 -36 -320 53 110 45 118 1996/ 4/ 4 0 3 8 23.2 47 42 13 0.335 0.831 2.3 15.1 -31 -266 51 111 45 129 1996/ 4/ 5 0 3 7 14.3 46 4 21 0.366 0.808 2.4 15.2 -28 -225 49 111 45 140 1996/ 4/ 6 0 3 6 12.4 44 40 44 0.398 0.785 2.4 15.4 -26 -194 47 111 45 148 1996/ 4/ 7 0 3 5 14.8 43 28 7 0.429 0.762 2.5 15.5 -26 -170 45 111 45 152 1996/ 4/ 8 0 3 4 19.4 42 24 6 0.461 0.738 2.5 15.5 -25 -151 43 111 44 149 1996/ 4/ 9 0 3 3 24.9 41 26 50 0.494 0.715 2.5 15.6 -26 -136 42 111 44 141 1996/ 4/10 0 3 2 30.1 40 34 55 0.526 0.691 2.5 15.7 -26 -124 40 110 43 130 1996/ 4/11 0 3 1 34.2 39 47 14 0.558 0.667 2.5 15.7 -27 -115 39 109 43 118 1996/ 4/12 0 3 0 36.6 39 2 51 0.590 0.643 2.4 15.7 -29 -108 37 109 42 105 1996/ 4/13 0 2 59 36.6 38 21 2 0.623 0.618 2.4 15.7 -30 -102 36 108 42 92 1996/ 4/14 0 2 58 33.7 37 41 6 0.656 0.594 2.3 15.7 -32 -98 35 107 41 79 1996/ 4/15 0 2 57 27.4 37 2 32 0.688 0.569 2.2 15.7 -34 -95 33 106 40 65 1996/ 4/16 0 2 56 17.1 36 24 47 0.721 0.544 2.1 15.6 -36 -94 32 104 39 52 1996/ 4/17 0 2 55 2.5 35 47 23 0.754 0.519 2.0 15.6 -39 -93 30 103 38 40 1996/ 4/18 0 2 53 43.0 35 9 53 0.787 0.493 1.9 15.5 -42 -94 29 101 37 29 1996/ 4/19 0 2 52 18.2 34 31 49 0.820 0.468 1.8 15.4 -45 -96 27 99 36 21 1996/ 4/20 0 2 50 47.6 33 52 42 0.853 0.443 1.6 15.3 -49 -100 26 97 34 20 1996/ 4/21 0 2 49 10.8 33 12 2 0.886 0.417 1.4 15.1 -52 -104 24 94 33 27 1996/ 4/22 0 2 47 27.4 32 29 16 0.919 0.392 1.3 15.0 -56 -110 23 91 31 36 1996/ 4/23 0 2 45 36.9 31 43 47 0.952 0.368 1.0 14.8 -61 -118 21 87 29 47 1996/ 4/24 0 2 43 39.2 30 54 53 0.985 0.343 0.8 14.6 -65 -127 20 83 27 59 1996/ 4/25 0 2 41 34.3 30 1 49 1.018 0.320 0.6 14.3 -70 -139 18 79 24 70 1996/ 4/26 0 2 39 22.5 29 3 41 1.050 0.298 0.3 14.0 -74 -153 16 73 21 83 1996/ 4/27 0 2 37 4.7 27 59 38 1.082 0.278 0.1 13.7 -77 -168 15 67 18 95 1996/ 4/28 0 2 34 42.9 26 48 49 1.112 0.260 -0.1 13.4 -80 -186 13 60 13 107 1996/ 4/29 0 2 32 20.1 25 30 34 1.140 0.246 -0.3 13.1 -80 -205 11 52 7 120 1996/ 4/30 0 2 30 0.8 24 4 46 1.165 0.236 -0.4 12.7 -77 -224 9 43 359 133 1996/ 5/ 1 0 2 27 50.7 22 31 56 1.188 0.231 -0.5 12.4 -71 -240 8 35 348 147 1996/ 5/ 2 0 2 25 55.6 20 53 25 1.206 0.231 -0.5 12.2 -62 -252 6 28 332 161 1996/ 5/ 3 0 2 24 20.3 19 11 8 1.221 0.237 -0.3 12.1 -50 -259 5 24 309 173 1996/ 5/ 4 0 2 23 7.6 17 27 12 1.231 0.248 -0.1 12.2 -36 -260 6 23 284 167 1996/ 5/ 5 0 2 22 18.1 15 43 23 1.238 0.263 0.2 12.5 -23 -258 7 26 264 153 1996/ 5/ 6 0 2 21 50.7 14 0 56 1.242 0.281 0.5 12.8 -10 -254 8 30 250 138 1996/ 5/ 7 0 2 21 43.2 12 20 37 1.244 0.302 0.8 13.1 1 -248 10 34 241 123 1996/ 5/ 8 0 2 21 53.5 10 42 43 1.244 0.324 1.1 13.4 11 -242 11 38 235 109 1996/ 5/ 9 0 2 22 19.2 9 7 18 1.242 0.348 1.4 13.6 20 -235 13 42 230 94 1996/ 5/10 0 2 22 58.4 7 34 15 1.239 0.372 1.7 13.9 28 -230 15 45 227 80 1996/ 5/11 0 2 23 49.2 6 3 24 1.235 0.397 1.9 14.1 35 -225 17 48 224 66 1996/ 5/12 0 2 24 50.3 4 34 31 1.230 0.422 2.2 14.3 41 -220 19 50 222 52 1996/ 5/13 0 2 26 0.6 3 7 22 1.225 0.447 2.4 14.5 47 -216 20 52 220 39 1996/ 5/14 0 2 27 19.1 1 41 44 1.219 0.473 2.7 14.7 51 -212 22 53 219 26 1996/ 5/15 0 2 28 44.9 0 17 24 1.213 0.498 2.9 14.8 56 -209 24 55 217 16