C/2021 A1 (Leonard) Orbit by S. Nakano NK 4621 (2022) Observed in 1st half of 2022
Equinox 2000.0 T/TT q (AU) e P Peri. Node Inc. Tail(AU) Epoch 2022 Jan. 3.29254 0.6152867 0.9999232 225.07858 255.89647 132.68827 0.200 2022 Aug. 9.0 m1 = 7.5 + 5 log Delta + 10.0 log r Date/ 0h TT R.A.(1950) Decl. R.A.(2000) Decl. Delta r Daily motion Magnitude Mot./PA Elong. P PA/Tail Moon Age h m ¡ , h m ¡ , m , m1 , ¡ ¡ ¡ ¡ ¡ ¡ 2022 Jan. 1 21 30.85 -35 39.4 21 33.89 -35 26.0 0.832 0.617 +0.88 - 5.4 5.0 12.0/117 38.6 84.0 97/13.1 60 .05 11 21 39.70 -36 33.6 21 42.73 -36 19.9 1.187 0.638 -0.29 - 0.2 5.9 3.5/267 32.5 55.9 107/7.26 79 .62 21 21 36.83 -36 35.3 21 39.87 -36 21.7 1.479 0.724 -0.49 + 2.1 6.9 6.3/289 25.3 35.6 124/4.05 155 .91 31 21 31.93 -36 14.1 21 34.97 -36 00.7 1.698 0.851 -0.44 + 2.7 7.9 6.0/296 20.7 24.2 151/2.49 26 .02 Feb. 10 21 27.48 -35 46.8 21 30.53 -35 33.6 1.852 0.997 -0.39 + 2.4 8.8 5.3/296 21.0 20.8 182/2.00 112 .63 20 21 23.57 -35 22.9 21 26.63 -35 09.9 1.951 1.150 -0.39 + 1.5 9.6 5.0/287 26.2 22.3 206/2.03 121 .88 Mar. 2 21 19.67 -35 07.6 21 22.73 -34 54.7 2.002 1.305 -0.46 + 0.3 10.2 5.7/273 34.0 25.2 221/2.23 23 .01 12 21 15.03 -35 04.2 21 18.10 -34 51.6 2.013 1.459 -0.62 - 1.1 10.7 7.7/261 43.3 27.9 231/2.44 144 .64 22 21 08.79 -35 15.0 21 11.88 -35 02.7 1.990 1.611 -0.87 - 2.7 11.1 11.0/255 53.5 29.8 238/2.63 82 .84 Apr. 1 21 00.03 -35 41.3 21 03.15 -35 29.4 1.941 1.760 -1.24 - 4.2 11.4 15.6/253 64.5 30.8 244/2.78 60 .00 11 20 47.60 -36 23.1 20 50.77 -36 11.9 1.875 1.907 -1.73 - 5.5 11.7 21.5/254 76.4 30.7 249/2.86 166 .66 21 20 30.25 -37 17.4 20 33.48 -37 07.1 1.799 2.050 -2.35 - 6.0 11.9 28.5/256 89.3 29.3 255/2.84 36 .77 May 1 20 06.72 -38 15.7 20 10.02 -38 06.8 1.727 2.191 -3.04 - 4.8 12.1 36.0/260 103.3 26.6 261/2.69 105 .00 11 19 36.26 -39 01.9 19 39.64 -38 55.0 1.672 2.329 -3.66 - 1.4 12.3 42.6/265 118.5 22.4 270/2.35 127 .69 21 18 59.63 -39 13.4 19 03.07 -39 09.0 1.647 2.464 -3.98 + 4.0 12.5 46.7/272 134.5 17.0 280/1.82 26 .70 31 18 19.79 -38 30.3 18 23.23 -38 28.8 1.666 2.597 -3.86 + 9.8 12.8 46.8/279 150.6 11.0 296/1.18 157 .00 June 10 17 41.27 -36 49.9 17 44.66 -36 51.1 1.737 2.728 -3.33 +13.7 13.1 42.8/286 164.4 5.8 330/0.59 70 .74 20 17 08.05 -34 30.0 17 11.35 -34 33.6 1.861 2.857 -2.62 +15.1 13.4 36.2/293 165.6 5.1 42/0.49 84 .62 30 16 41.91 -31 57.4 16 45.13 -32 02.8 2.034 2.983 -1.92 +14.3 13.8 28.5/299 154.3 8.5 77/0.76 146 .01 July 10 16 22.80 -29 33.4 16 25.94 -29 40.2 2.248 3.108 -1.32 +12.3 14.2 21.3/305 141.4 11.8 89/0.96 17 .80 20 16 09.68 -27 29.2 16 12.76 -27 36.8 2.493 3.230 -0.84 +10.1 14.6 15.1/311 129.0 14.1 95/1.04 133 .56 30 16 01.33 -25 47.7 16 04.36 -25 55.9 2.759 3.351 -0.47 + 8.0 15.0 10.2/321 117.5 15.6 98/1.04 104 .02 Aug. 9 15 56.68 -24 27.8 15 59.68 -24 36.3 3.041 3.470 -0.18 + 6.1 15.3 6.6/338 106.7 16.3 100/0.99 30 .86 19 15 54.88 -23 26.5 15 57.86 -23 35.1 3.330 3.588 +0.04 + 4.6 15.7 4.7/ 6 96.5 16.3 101/0.91 171 .52 29 15 55.27 -22 40.3 15 58.23 -22 48.8 3.621 3.704 +0.21 + 3.4 16.0 4.5/ 40 86.8 15.8 102/0.82 68 .03 Sept. 8 15 57.35 -22 06.0 16 00.31 -22 14.5 3.909 3.819 +0.34 + 2.5 16.3 5.3/ 62 77.5 14.9 102/0.72 70 .92 18 16 00.74 -21 41.0 16 03.69 -21 49.2 4.189 3.932 +0.44 + 1.8 16.6 6.4/ 74 68.4 13.7 102/0.62 157 .49 28 16 05.14 -21 23.0 16 08.09 -21 30.9 4.458 4.044 +0.52 + 1.3 16.8 7.3/ 80 59.6 12.3 101/0.53 34 .05 Oct. 8 16 10.31 -21 10.1 16 13.26 -21 17.7 4.712 4.155 +0.58 + 1.0 17.1 8.1/ 83 50.9 10.8 100/0.44 105 .96 18 16 16.06 -21 00.7 16 19.01 -21 07.9 4.949 4.264 +0.62 + 0.7 17.3 8.7/ 85 42.3 9.0 99/0.35 129 .47 28 16 22.23 -20 53.6 16 25.18 -21 00.4 5.164 4.373 +0.64 + 0.6 17.5 9.0/ 86 33.7 7.2 98/0.27 3 .08 Nov. 7 16 28.66 -20 47.8 16 31.61 -20 54.2 5.357 4.480 +0.66 + 0.6 17.7 9.2/ 87 25.2 5.4 97/0.19 137 .98 17 16 35.21 -20 42.4 16 38.17 -20 48.4 5.525 4.586 +0.66 + 0.6 17.8 9.2/ 87 16.7 3.5 94/0.12 102 .46 27 16 41.77 -20 36.8 16 44.73 -20 42.3 5.666 4.691 +0.64 + 0.7 18.0 9.1/ 86 8.2 1.7 86/0.06 34 .13 Dec. 7 16 48.22 -20 30.3 16 51.18 -20 35.4 5.780 4.796 +0.62 + 0.8 18.1 8.8/ 85 2.0 0.4 351/0.01 167 .99 17 16 54.42 -20 22.7 16 57.38 -20 27.3 5.866 4.899 +0.58 + 1.0 18.2 8.3/ 84 9.6 1.9 289/0.06 73 .44 27 17 00.27 -20 13.5 17 03.23 -20 17.7 5.925 5.001 +0.54 + 1.1 18.4 7.6/ 82 18.3 3.5 283/0.12 69 .18 2023 Jan. 6 17 05.64 -20 02.4 17 08.59 -20 06.3 5.957 5.102 +0.48 + 1.3 18.5 6.8/ 79 27.3 5.1 281/0.16 162 .99 16 17 10.40 -19 49.5 17 13.35 -19 52.9 5.963 5.203 +0.40 + 1.5 18.5 5.9/ 75 36.3 6.4 279/0.21 43 .41 26 17 14.43 -19 34.4 17 17.38 -19 37.6 5.945 5.303 +0.32 + 1.7 18.6 4.8/ 69 45.6 7.6 278/0.25 103 .23 Feb. 5 17 17.60 -19 17.2 17 20.55 -19 20.1 5.906 5.402 +0.22 + 2.0 18.7 3.7/ 58 55.0 8.6 277/0.28 133 .99 15 17 19.80 -18 57.8 17 22.74 -19 00.6 5.851 5.500 +0.11 + 2.2 18.7 2.7/ 36 64.6 9.3 276/0.31 11 .36 25 17 20.91 -18 36.2 17 23.84 -18 39.0 5.781 5.597 -0.01 + 2.4 18.8 2.4/357 74.4 9.8 275/0.33 137 .27 Mar. 7 17 20.82 -18 12.6 17 23.75 -18 15.3 5.703 5.694 -0.14 + 2.6 18.8 3.2/323 84.5 10.0 274/0.34 101 1.00 17 17 19.47 -17 46.8 17 22.38 -17 49.6 5.621 5.790 -0.27 + 2.8 18.9 4.7/306 94.8 9.9 273/0.34 32 .29 27 17 16.80 -17 19.1 17 19.71 -17 22.1 5.542 5.885 -0.40 + 2.9 18.9 6.4/297 105.3 9.4 272/0.32 168 .30 Apr. 6 17 12.83 -16 49.5 17 15.72 -16 52.8 5.471 5.979 -0.52 + 3.1 19.0 8.1/292 116.1 8.6 271/0.30 66 1.00 16 17 07.63 -16 18.4 17 10.51 -16 22.1 5.415 6.073 -0.63 + 3.2 19.0 9.6/289 127.1 7.6 270/0.27 73 .22 26 17 01.33 -15 46.1 17 04.20 -15 50.2 5.380 6.167 -0.72 + 3.2 19.1 10.9/287 138.2 6.2 268/0.22 150 .32 May 6 16 54.16 -15 13.2 16 57.02 -15 17.8 5.370 6.259 -0.78 + 3.2 19.1 11.7/286 149.4 4.7 263/0.17 28 1.00 16 16 46.40 -14 40.4 16 49.24 -14 45.5 5.390 6.351 -0.80 + 3.1 19.2 12.1/285 160.3 3.1 254/0.11 116 .15