C/2023 C2 (ATLAS) Orbit by S. Nakano NK 5061 (2023) Observed in 2nd half of 2023

Equinox 2000.0 T/TT q (AU) e P Peri. Node Inc. Tail(AU) Epoch 2024 Nov. 16.82973 2.3684578 0.9992451 357.45799 301.00891 48.31697 0.200 2024 Mar. 31.0 m1 = 6.5 + 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 , ¡ ¡ ¡ ¡ ¡ ¡ 2023 Dec. 22 13 55.10 -57 00.2 13 58.50 -57 14.7 4.692 4.194 +1.71 -10.7 16.1 17.3/130 54.3 11.0 258/0.45 134 .74 2024 Jan. 1 14 12.05 -58 47.9 14 15.63 -59 01.8 4.545 4.116 +1.76 -10.8 15.9 17.1/131 58.4 11.7 262/0.49 84 .78 11 14 29.45 -60 36.8 14 33.23 -60 49.9 4.392 4.038 +1.80 -10.8 15.8 16.7/132 62.8 12.5 267/0.54 55 .01 21 14 47.23 -62 25.8 14 51.23 -62 38.1 4.233 3.960 +1.83 -10.7 15.6 16.3/133 67.4 13.3 270/0.59 140 .79 31 15 05.29 -64 14.0 15 09.54 -64 25.5 4.071 3.883 +1.85 -10.6 15.4 15.7/135 72.1 14.0 274/0.65 69 .77 Feb. 10 15 23.48 -66 00.8 15 28.00 -66 11.3 3.907 3.806 +1.84 -10.3 15.3 14.9/136 76.9 14.6 277/0.71 74 .00 20 15 41.53 -67 45.3 15 46.36 -67 54.7 3.741 3.730 +1.79 -10.0 15.1 14.0/138 81.8 15.2 280/0.76 132 .82 Mar. 1 15 59.10 -69 26.7 16 04.25 -69 34.9 3.575 3.654 +1.69 - 9.6 14.9 12.9/141 86.7 15.7 283/0.82 55 .75 11 16 15.66 -71 04.2 16 21.17 -71 11.4 3.411 3.579 +1.52 - 9.2 14.7 11.6/144 91.6 16.1 286/0.88 96 .01 21 16 30.45 -72 37.1 16 36.33 -72 43.2 3.251 3.505 +1.24 - 8.6 14.5 10.1/150 96.4 16.4 290/0.94 116 .84 31 16 42.47 -74 04.1 16 48.74 -74 09.4 3.094 3.431 +0.83 - 7.9 14.3 8.5/159 101.2 16.6 295/1.00 47 .72 Apr. 10 16 50.36 -75 23.5 16 57.03 -75 28.3 2.943 3.359 +0.25 - 6.9 14.1 6.9/173 105.9 16.7 302/1.05 117 .02 20 16 52.50 -76 32.3 16 59.55 -76 36.9 2.799 3.287 -0.48 - 5.3 13.9 5.6/196 110.4 16.6 310/1.10 97 .86 30 16 47.37 -77 25.3 16 54.72 -77 30.3 2.664 3.217 -1.30 - 3.1 13.7 5.1/232 114.7 16.5 321/1.14 54 .66 May 10 16 34.27 -77 55.1 16 41.73 -78 00.9 2.538 3.148 -1.97 + 0.2 13.5 6.1/269 118.5 16.4 334/1.18 129 .05 20 16 14.80 -77 52.0 16 22.06 -77 59.1 2.424 3.081 -2.20 + 4.3 13.3 8.2/298 121.8 16.2 350/1.22 75 .88 30 15 53.31 -77 08.1 16 00.09 -77 16.6 2.324 3.015 -1.90 + 8.7 13.1 10.9/320 124.4 16.1 8/1.26 76 .58 June 9 15 35.00 -75 39.9 15 41.13 -75 49.6 2.238 2.951 -1.23 +12.9 12.9 13.8/338 125.9 16.2 25/1.31 124 .07 19 15 23.30 -73 29.9 15 28.82 -73 40.3 2.169 2.889 -0.49 +16.5 12.8 16.6/352 126.3 16.5 41/1.38 53 .90 29 15 18.88 -70 44.7 15 23.90 -70 55.4 2.118 2.829 +0.15 +19.3 12.6 19.3/ 3 125.3 17.1 56/1.46 107 .49 July 9 15 20.75 -67 32.1 15 25.40 -67 42.7 2.086 2.772 +0.65 +21.2 12.5 21.6/ 11 122.9 17.9 68/1.55 104 .09 19 15 27.55 -64 00.6 15 31.93 -64 10.7 2.073 2.718 +1.02 +22.3 12.4 23.4/ 19 119.3 19.0 77/1.65 41 .92 29 15 37.94 -60 17.8 15 42.11 -60 27.4 2.078 2.667 +1.28 +22.8 12.3 24.9/ 25 114.7 20.2 85/1.75 139 .40 Aug. 8 15 50.91 -56 30.9 15 54.91 -56 39.7 2.103 2.619 +1.47 +22.6 12.3 25.9/ 31 109.3 21.4 90/1.83 78 .11 18 16 05.74 -52 45.6 16 09.60 -52 53.4 2.144 2.574 +1.60 +22.1 12.3 26.7/ 36 103.4 22.5 94/1.88 54 .95 28 16 21.85 -49 06.1 16 25.59 -49 12.9 2.200 2.533 +1.69 +21.2 12.2 27.3/ 41 97.2 23.3 97/1.90 155 .33 Sept. 7 16 38.86 -45 35.1 16 42.49 -45 40.7 2.270 2.496 +1.75 +20.3 12.3 27.7/ 45 90.8 23.8 98/1.89 51 .13 17 16 56.50 -42 13.7 17 00.03 -42 18.2 2.350 2.464 +1.79 +19.3 12.3 28.1/ 48 84.4 24.0 98/1.84 80 .98 27 17 14.53 -39 02.0 17 17.97 -39 05.1 2.438 2.435 +1.82 +18.4 12.3 28.4/ 51 78.0 23.7 98/1.76 140 .28 Oct. 7 17 32.80 -35 59.0 17 36.17 -36 00.9 2.532 2.412 +1.83 +17.7 12.3 28.7/ 53 71.7 23.2 97/1.66 26 .15 17 17 51.21 -33 03.5 17 54.49 -33 04.0 2.629 2.393 +1.83 +17.1 12.4 29.0/ 55 65.4 22.3 95/1.54 108 1.00 27 18 09.62 -30 13.8 18 12.83 -30 13.0 2.728 2.380 +1.83 +16.7 12.4 29.3/ 56 59.3 21.0 93/1.41 119 .25 Nov. 6 18 27.99 -27 28.2 18 31.12 -27 26.0 2.827 2.372 +1.82 +16.4 12.5 29.5/ 57 53.3 19.6 90/1.28 3 .18 16 18 46.22 -24 45.1 18 49.29 -24 41.7 2.923 2.369 +1.80 +16.3 12.6 29.7/ 58 47.4 17.9 87/1.13 134 1.00 26 19 04.28 -22 03.1 19 07.27 -21 58.4 3.015 2.371 +1.78 +16.4 12.6 29.8/ 58 41.7 16.1 83/0.99 100 .24 Dec. 6 19 22.11 -19 20.8 19 25.03 -19 14.8 3.102 2.378 +1.75 +16.5 12.7 29.9/ 57 36.1 14.1 78/0.85 22 .23 16 19 39.67 -16 37.2 19 42.53 -16 30.0 3.183 2.391 +1.72 +16.7 12.8 30.0/ 57 30.8 12.2 72/0.72 156 .99 26 19 56.92 -13 51.4 19 59.72 -13 43.1 3.257 2.408 +1.69 +17.0 12.9 30.0/ 56 25.7 10.2 64/0.59 82 .23 2025 Jan. 5 20 13.84 -11 02.7 20 16.58 -10 53.4 3.323 2.431 +1.65 +17.3 13.0 29.9/ 55 21.1 8.4 54/0.48 46 .28 15 20 30.40 -08 10.6 20 33.09 -08 00.3 3.380 2.458 +1.61 +17.7 13.1 29.8/ 54 17.3 6.8 40/0.38 166 .99 25 20 46.57 -05 14.9 20 49.21 -05 03.8 3.429 2.490 +1.57 +18.0 13.1 29.7/ 53 14.8 5.8 20/0.32 66 .22 Feb. 4 21 02.34 -02 15.4 21 04.93 -02 03.4 3.470 2.527 +1.53 +18.4 13.2 29.4/ 51 14.3 5.5 356/0.30 69 .35 14 21 17.67 +00 47.9 21 20.22 +01 00.6 3.502 2.567 +1.48 +18.8 13.3 29.1/ 50 15.9 6.1 334/0.33 155 .98 24 21 32.56 +03 54.8 21 35.07 +04 08.2 3.526 2.611 +1.44 +19.1 13.4 28.7/ 48 19.1 7.1 317/0.38 49 .19 Mar. 6 21 46.97 +07 05.3 21 49.45 +07 19.3 3.542 2.658 +1.39 +19.4 13.5 28.3/ 46 23.1 8.4 305/0.45 92 .42 16 22 00.86 +10 19.0 22 03.32 +10 33.5 3.550 2.709 +1.33 +19.7 13.6 27.8/ 44 27.7 9.8 296/0.52 139 .97 26 22 14.22 +13 35.4 22 16.67 +13 50.4 3.552 2.763 +1.28 +19.9 13.7 27.1/ 42 32.5 11.2 289/0.59 35 .16

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