51P/Harrington-A Orbit by S. Nakano NK 3014 (2015) Last obs. 2015 11 07 (F51)
Equinox 2000.0 T/TT q (AU) e P Peri. Node Inc. Tail(AU) Epoch 2022 Oct. 3.90662 1.6926049 0.5436662 7.14 269.25905 83.67361 5.42583 0.200 2022 Aug. 9.0 pre-T: m1 = 11.5 + 5 log Delta + 20.0 log r post-T: m1 = 10.5 + 5 log Delta + 10.0 log r Date/ 0h TT R.A.(1950) Decl. R.A.(2000) Decl. Delta r Variation Magnitude Mot./PA Elong. P PA/Tail Moon Age h m ¡ , h m ¡ , for T=+1 day m1 , ¡ ¡ ¡ ¡ ¡ ¡ 2022 Jan. 11 17 27.24 -22 31.2 17 30.26 -22 33.5 3.692 2.854 -0.69 + 1.4 23.4 24.4/ 95 27.3 9.1 274/0.47 131 .62 21 17 44.83 -22 49.5 17 47.86 -22 50.5 3.565 2.796 -0.74 + 1.2 23.2 24.7/ 93 33.4 11.2 272/0.59 112 .91 31 18 02.70 -23 00.9 18 05.73 -23 00.6 3.427 2.739 -0.80 + 0.9 22.9 24.9/ 92 39.5 13.2 270/0.72 23 .02 Feb. 10 18 20.74 -23 05.3 18 23.78 -23 03.7 3.279 2.681 -0.86 + 0.6 22.6 25.1/ 90 45.4 15.2 268/0.87 151 .63 20 18 38.91 -23 02.7 18 41.94 -22 59.8 3.124 2.623 -0.93 + 0.3 22.4 25.2/ 88 51.4 17.1 266/1.02 89 .88 Mar. 2 18 57.12 -22 53.4 19 00.14 -22 49.1 2.962 2.565 -1.01 - 0.1 22.0 25.2/ 87 57.2 19.0 264/1.18 48 .01 12 19 15.29 -22 37.6 19 18.29 -22 32.1 2.796 2.508 -1.09 - 0.6 21.7 25.1/ 86 63.1 20.7 262/1.36 169 .64 22 19 33.36 -22 16.0 19 36.34 -22 09.3 2.627 2.450 -1.18 - 1.2 21.4 25.0/ 84 68.8 22.3 260/1.55 64 .84 Apr. 1 19 51.25 -21 49.3 19 54.20 -21 41.4 2.456 2.393 -1.28 - 1.8 21.0 24.8/ 83 74.6 23.7 259/1.75 71 .00 11 20 08.86 -21 18.5 20 11.79 -21 09.5 2.286 2.336 -1.39 - 2.6 20.7 24.4/ 83 80.3 25.0 257/1.96 170 .66 21 20 26.12 -20 44.8 20 29.02 -20 34.7 2.117 2.280 -1.52 - 3.4 20.3 23.9/ 82 86.0 26.1 256/2.19 37 .77 May 1 20 42.95 -20 09.7 20 45.82 -19 58.7 1.952 2.225 -1.67 - 4.4 19.9 23.2/ 82 91.8 26.9 255/2.43 93 .00 11 20 59.22 -19 35.0 21 02.06 -19 23.1 1.791 2.170 -1.83 - 5.5 19.5 22.3/ 82 97.7 27.5 254/2.68 149 .69 21 21 14.81 -19 02.7 21 17.62 -18 50.1 1.637 2.117 -2.02 - 6.8 19.1 21.1/ 83 103.6 27.7 253/2.93 10 .70 31 21 29.56 -18 35.3 21 32.34 -18 22.0 1.490 2.066 -2.25 - 8.2 18.7 19.6/ 85 109.7 27.5 253/3.17 116 .00 June 10 21 43.24 -18 15.6 21 46.00 -18 01.7 1.352 2.016 -2.50 - 9.9 18.2 17.7/ 87 116.1 26.9 253/3.38 125 .74 20 21 55.64 -18 06.4 21 58.38 -17 52.1 1.225 1.969 -2.80 -11.8 17.8 15.4/ 92 122.7 25.7 253/3.54 19 .62 30 22 06.42 -18 10.8 22 09.15 -17 56.0 1.108 1.924 -3.14 -13.9 17.4 12.7/ 99 129.7 24.0 254/3.60 140 .01 July 10 22 15.24 -18 31.1 22 17.96 -18 16.1 1.005 1.882 -3.52 -16.0 17.0 10.0/112 137.2 21.5 257/3.53 95 .80 20 22 21.78 -19 08.4 22 24.50 -18 53.2 0.916 1.843 -3.93 -18.1 16.6 7.7/133 145.1 18.4 261/3.26 49 .56 30 22 25.75 -20 01.3 22 28.47 -19 45.9 0.842 1.808 -4.33 -19.8 16.3 6.6/163 153.4 14.6 268/2.78 168 .02 Aug. 9 22 27.12 -21 04.5 22 29.85 -20 49.1 0.786 1.777 -4.70 -20.8 16.0 6.5/190 161.5 10.5 282/2.12 58 .86 19 22 26.31 -22 08.3 22 29.05 -21 52.9 0.748 1.750 -4.96 -20.8 15.7 6.0/210 167.4 7.2 314/1.52 83 .52 29 22 24.15 -23 00.7 22 26.90 -22 45.4 0.729 1.728 -5.07 -20.1 15.6 4.1/226 166.8 7.7 2/1.65 154 .03 Sept. 8 22 21.98 -23 29.4 22 24.74 -23 14.1 0.729 1.711 -5.00 -18.8 15.5 1.1/287 160.1 11.5 31/2.48 19 .92 18 22 21.22 -23 26.2 22 23.98 -23 11.0 0.746 1.700 -4.79 -17.6 15.5 4.4/ 32 151.9 16.2 44/3.40 117 .49 28 22 22.92 -22 48.8 22 25.67 -22 33.5 0.779 1.694 -4.47 -16.6 15.5 9.6/ 44 143.6 20.6 52/4.16 119 .05 Oct. 8 22 27.70 -21 39.0 22 30.43 -21 23.6 0.827 1.693 -4.11 -15.9 12.4 14.7/ 49 135.8 24.3 56/4.66 20 .96 18 22 35.56 -20 01.7 22 38.27 -19 46.1 0.887 1.698 -3.74 -15.6 12.5 19.2/ 52 128.7 27.3 59/4.92 144 .47 28 22 46.18 -18 02.4 22 48.86 -17 46.5 0.959 1.709 -3.38 -15.5 12.7 23.0/ 54 122.1 29.5 61/4.97 89 .08 Nov. 7 22 59.12 -15 46.1 23 01.76 -15 30.0 1.042 1.725 -3.06 -15.3 13.0 26.0/ 56 116.0 31.1 63/4.86 47 .98 17 23 13.84 -13 17.9 23 16.45 -13 01.5 1.135 1.746 -2.77 -15.1 13.2 28.3/ 57 110.4 32.1 64/4.65 164 .46 27 23 29.90 -10 41.6 23 32.49 -10 25.0 1.237 1.772 -2.51 -14.8 13.4 29.9/ 58 105.1 32.5 65/4.38 63 .13 Dec. 7 23 46.96 -08 00.6 23 49.53 -07 43.9 1.349 1.802 -2.28 -14.3 13.7 31.0/ 59 99.9 32.6 65/4.06 67 .99 17 00 04.71 -05 18.0 00 07.27 -05 01.3 1.468 1.837 -2.08 -13.7 14.0 31.7/ 60 95.0 32.3 66/3.73 177 .44 27 00 22.96 -02 36.3 00 25.52 -02 19.7 1.595 1.875 -1.90 -13.0 14.2 32.1/ 60 90.1 31.6 67/3.40 40 .18 2023 Jan. 6 00 41.59 +00 02.7 00 44.15 +00 19.1 1.729 1.916 -1.75 -12.2 14.5 32.2/ 61 85.2 30.8 67/3.08 85 .99 16 01 00.46 +02 37.1 01 03.04 +02 53.2 1.868 1.961 -1.62 -11.3 14.8 32.2/ 62 80.4 29.6 68/2.78 159 .41 26 01 19.53 +05 05.6 01 22.13 +05 21.2 2.012 2.008 -1.50 -10.4 15.0 32.0/ 64 75.6 28.4 69/2.49 18 .23 Feb. 5 01 38.76 +07 27.0 01 41.38 +07 42.2 2.160 2.057 -1.40 - 9.5 15.3 31.6/ 65 70.7 26.9 70/2.22 101 .99 15 01 58.08 +09 40.5 02 00.74 +09 55.0 2.310 2.108 -1.31 - 8.6 15.6 31.2/ 66 65.9 25.3 71/1.97 139 .36 25 02 17.50 +11 45.3 02 20.20 +11 59.0 2.460 2.161 -1.23 - 7.7 15.8 30.8/ 68 61.0 23.6 72/1.74 3 .27 Mar. 7 02 36.98 +13 40.8 02 39.72 +13 53.7 2.610 2.215 -1.16 - 6.8 16.0 30.2/ 69 56.1 21.8 73/1.53 118 1.00 17 02 56.49 +15 26.6 02 59.27 +15 38.6 2.759 2.270 -1.09 - 6.0 16.3 29.7/ 71 51.1 19.9 75/1.34 116 .29 27 03 16.02 +17 02.5 03 18.84 +17 13.4 2.904 2.326 -1.03 - 5.3 16.5 29.1/ 72 46.1 18.0 76/1.15 21 .30 Apr. 6 03 35.51 +18 28.1 03 38.38 +18 37.8 3.044 2.383 -0.98 - 4.6 16.7 28.5/ 74 41.1 16.0 78/0.99 137 1.00 16 03 54.94 +19 43.4 03 57.84 +19 52.0 3.179 2.440 -0.92 - 3.9 16.9 28.0/ 76 36.0 14.0 79/0.83 91 .22 26 04 14.26 +20 48.5 04 17.20 +20 55.8 3.306 2.497 -0.88 - 3.3 17.1 27.3/ 78 30.9 11.9 81/0.69 39 .32 May 6 04 33.42 +21 43.4 04 36.40 +21 49.5 3.426 2.555 -0.83 - 2.8 17.2 26.7/ 80 25.7 9.9 82/0.55 158 1.00 16 04 52.37 +22 28.5 04 55.37 +22 33.3 3.535 2.613 -0.79 - 2.3 17.4 26.1/ 82 20.5 7.8 84/0.43 66 .15