C/2023 X2 (Leonard) Orbit by S. Nakano NK 5161 (2024) Observed in 1st half of 2025
Equinox 2000.0 T/TT q (AU) e P Peri. Node Inc. Tail(AU) Epoch 2025 Dec. 28.08579 5.0888141 1.0002372 64.75637 66.30481 76.98393 0.200 2025 May 5.0 m1 = 8.5 + 5 log Delta + 8.0 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 , ¡ ¡ ¡ ¡ ¡ ¡ 2024 Dec. 26 03 51.45 +48 13.3 03 55.08 +48 22.1 4.984 5.792 -0.95 + 1.2 18.1 9.6/278 142.2 6.0 118/0.23 143 .23 2025 Jan. 5 03 41.92 +48 25.1 03 45.53 +48 34.5 5.038 5.758 -0.79 + 0.6 18.1 7.9/275 133.3 7.1 105/0.27 79 .28 15 03 34.04 +48 30.3 03 37.62 +48 40.1 5.116 5.723 -0.60 + 0.2 18.1 5.9/273 123.9 8.2 96/0.31 65 .99 25 03 28.06 +48 32.1 03 31.62 +48 42.2 5.212 5.690 -0.40 + 0.2 18.1 3.9/273 114.4 9.1 88/0.33 155 .22 Feb. 4 03 24.10 +48 33.5 03 27.65 +48 43.9 5.321 5.657 -0.20 + 0.4 18.2 2.0/281 105.0 9.7 82/0.35 42 .35 14 03 22.14 +48 37.2 03 25.69 +48 47.7 5.437 5.625 -0.01 + 0.8 18.2 0.8/356 95.9 10.1 77/0.35 98 .98 24 03 22.07 +48 45.0 03 25.62 +48 55.5 5.555 5.594 +0.17 + 1.3 18.2 2.1/ 52 87.1 10.2 72/0.35 134 .19 Mar. 6 03 23.76 +48 58.1 03 27.33 +49 08.5 5.671 5.563 +0.33 + 1.9 18.2 3.7/ 59 78.7 10.1 67/0.34 25 .42 16 03 27.04 +49 17.3 03 30.63 +49 27.6 5.781 5.534 +0.47 + 2.5 18.3 5.2/ 61 70.8 9.8 63/0.33 126 .97 26 03 31.73 +49 43.0 03 35.35 +49 53.0 5.881 5.505 +0.60 + 3.2 18.3 6.6/ 61 63.3 9.3 58/0.31 105 .16 Apr. 5 03 37.71 +50 15.1 03 41.37 +50 24.7 5.968 5.477 +0.72 + 3.8 18.3 7.8/ 60 56.3 8.7 52/0.28 44 .49 15 03 44.83 +50 53.6 03 48.54 +51 02.8 6.041 5.449 +0.82 + 4.4 18.3 8.8/ 59 49.9 8.1 46/0.26 147 .96 25 03 52.98 +51 38.1 03 56.74 +51 46.8 6.098 5.423 +0.91 + 5.0 18.3 9.8/ 58 44.3 7.4 39/0.24 76 .11 May 5 04 02.06 +52 28.5 04 05.89 +52 36.6 6.137 5.398 +1.00 + 5.5 18.3 10.6/ 57 39.6 6.8 30/0.22 71 .54 15 04 11.99 +53 24.5 04 15.90 +53 31.9 6.158 5.373 +1.08 + 6.1 18.3 11.3/ 56 36.0 6.4 20/0.20 152 .95 25 04 22.72 +54 25.7 04 26.71 +54 32.5 6.160 5.349 +1.16 + 6.6 18.3 11.9/ 55 33.9 6.1 8/0.19 48 .07 June 4 04 34.18 +55 32.2 04 38.26 +55 38.1 6.145 5.327 +1.23 + 7.1 18.3 12.4/ 54 33.3 6.0 356/0.19 95 .58 14 04 46.35 +56 43.6 04 50.53 +56 48.7 6.113 5.305 +1.30 + 7.5 18.2 12.9/ 53 34.3 6.2 344/0.20 136 .93 24 04 59.21 +58 00.0 05 03.49 +58 04.2 6.064 5.284 +1.36 + 8.0 18.2 13.3/ 51 36.7 6.6 334/0.21 31 .03 July 4 05 12.73 +59 21.3 05 17.14 +59 24.6 6.000 5.264 +1.43 + 8.5 18.2 13.7/ 50 40.2 7.2 325/0.23 117 .61 14 05 26.92 +60 47.7 05 31.46 +60 49.9 5.922 5.245 +1.50 + 9.0 18.1 14.0/ 48 44.4 7.8 318/0.25 111 .89 24 05 41.81 +62 19.2 05 46.49 +62 20.4 5.833 5.227 +1.58 + 9.6 18.1 14.3/ 46 49.3 8.5 312/0.28 40 .01 Aug. 3 05 57.42 +63 56.0 06 02.26 +63 56.0 5.733 5.210 +1.66 +10.1 18.0 14.6/ 45 54.5 9.1 308/0.31 133 .64 13 06 13.81 +65 38.1 06 18.82 +65 37.0 5.627 5.195 +1.75 +10.6 18.0 14.9/ 43 60.0 9.7 304/0.33 85 .84 23 06 31.09 +67 25.8 06 36.30 +67 23.3 5.515 5.180 +1.85 +11.2 17.9 15.2/ 40 65.6 10.2 301/0.36 62 .00 Sept. 2 06 49.41 +69 18.9 06 54.84 +69 15.1 5.400 5.166 +1.98 +11.7 17.9 15.4/ 38 71.3 10.7 299/0.38 138 .66 12 07 09.01 +71 17.2 07 14.69 +71 12.0 5.286 5.154 +2.16 +12.2 17.8 15.7/ 37 77.0 11.0 296/0.40 62 .77 22 07 30.27 +73 20.3 07 36.24 +73 13.6 5.175 5.142 +2.39 +12.5 17.8 15.8/ 35 82.6 11.2 294/0.41 85 .00 Oct. 2 07 53.81 +75 27.2 08 00.10 +75 19.0 5.070 5.132 +2.72 +12.8 17.7 15.9/ 34 87.9 11.2 292/0.42 128 .70 12 08 20.68 +77 36.3 08 27.31 +77 26.5 4.974 5.122 +3.24 +12.7 17.7 16.0/ 33 92.9 11.2 291/0.43 53 .69 22 08 52.78 +79 45.4 08 59.73 +79 33.8 4.888 5.114 +4.10 +12.3 17.6 15.9/ 34 97.5 11.1 290/0.44 103 .00 Nov. 1 09 33.65 +81 50.6 09 40.68 +81 37.0 4.817 5.107 +5.59 +11.3 17.6 15.6/ 37 101.5 11.0 291/0.44 108 .73 11 10 30.32 +83 45.1 10 36.56 +83 29.5 4.760 5.101 +8.15 + 9.0 17.5 15.1/ 44 104.7 10.8 295/0.43 62 .63 21 11 55.28 +85 16.3 11 58.03 +84 59.6 4.718 5.096 +11.39 + 4.8 17.5 14.4/ 57 107.0 10.7 305/0.43 114 .01 Dec. 1 13 56.88 +86 02.5 13 51.96 +85 47.9 4.694 5.093 +12.18 - 0.7 17.5 13.4/ 78 108.5 10.6 322/0.43 87 .78 11 16 04.11 +85 49.3 15 53.72 +85 40.9 4.685 5.090 +9.33 - 4.7 17.5 12.3/100 108.9 10.5 341/0.43 80 .59 21 17 36.91 +84 56.2 17 27.04 +84 54.1 4.692 5.089 +6.31 - 6.0 17.5 11.0/115 108.4 10.6 353/0.43 113 .01 31 18 37.86 +83 51.4 18 30.16 +83 53.9 4.713 5.088 +4.43 - 5.8 17.5 9.5/122 107.0 10.6 358/0.43 71 .84 2026 Jan. 10 19 20.31 +82 50.5 19 14.45 +82 56.1 4.746 5.089 +3.34 - 4.8 17.5 8.1/122 105.0 10.8 358/0.43 98 .56 20 19 52.42 +82 00.8 19 47.88 +82 08.5 4.788 5.091 +2.68 - 3.3 17.6 6.6/117 102.4 10.9 356/0.43 102 .01 30 20 18.25 +81 25.8 20 14.64 +81 35.2 4.839 5.094 +2.23 - 1.8 17.6 5.3/107 99.5 11.0 352/0.43 69 .89 Feb. 9 20 39.91 +81 07.0 20 36.93 +81 17.6 4.894 5.099 +1.90 - 0.1 17.6 4.3/ 89 96.4 11.1 347/0.43 110 .55 19 20 58.54 +81 05.0 20 55.96 +81 16.7 4.953 5.104 +1.63 + 1.6 17.6 4.0/ 65 93.2 11.1 342/0.43 87 .03 Mar. 1 21 14.57 +81 19.9 21 12.22 +81 32.4 5.013 5.111 +1.36 + 3.2 17.7 4.3/ 41 90.0 11.2 337/0.42 78 .93