C/2023 A3 (Tsuchinshan-ATLAS) Orbit by S. Nakano NK 5343 (2024) Observed in 2nd half of 2025
Equinox 2000.0 T/TT q (AU) e P Peri. Node Inc. Tail(AU) Epoch 2024 Sep. 27.79909 0.3914357 1.0001487 308.56342 21.64678 139.10367 0.200 2026 June 9.0 m1 = 9.0 + 5 log Delta + 7.5 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 , ¡ ¡ ¡ ¡ ¡ ¡ 2025 Dec. 31 18 28.68 +11 46.4 18 31.01 +11 48.5 6.962 6.183 +0.49 + 1.1 19.1 7.3/ 81 35.0 5.2 356/0.15 120 .84 2026 Jan. 10 18 33.62 +11 57.4 18 35.95 +11 59.9 7.046 6.277 +0.47 + 1.9 19.2 7.1/ 74 36.0 5.3 341/0.15 91 .56 20 18 38.28 +12 16.1 18 40.60 +12 18.9 7.107 6.371 +0.43 + 2.6 19.3 6.8/ 67 38.9 5.6 327/0.15 47 .01 30 18 42.54 +12 41.9 18 44.85 +12 45.1 7.146 6.464 +0.37 + 3.3 19.3 6.4/ 59 43.2 6.0 314/0.16 138 .89 Feb. 9 18 46.30 +13 14.3 18 48.60 +13 17.7 7.166 6.556 +0.31 + 3.8 19.4 6.0/ 50 48.7 6.5 304/0.18 70 .55 19 18 49.45 +13 52.5 18 51.74 +13 56.2 7.167 6.648 +0.24 + 4.3 19.4 5.6/ 39 54.9 7.0 295/0.19 68 .03 Mar. 1 18 51.88 +14 35.8 18 54.16 +14 39.7 7.151 6.739 +0.16 + 4.7 19.5 5.3/ 26 61.8 7.4 287/0.20 135 .93 11 18 53.51 +15 23.2 18 55.78 +15 27.1 7.123 6.830 +0.07 + 5.0 19.5 5.1/ 12 69.0 7.8 281/0.21 52 .54 21 18 54.25 +16 13.5 18 56.50 +16 17.5 7.085 6.920 -0.02 + 5.2 19.6 5.2/356 76.5 8.0 274/0.22 94 .05 31 18 54.02 +17 05.4 18 56.25 +17 09.4 7.041 7.010 -0.13 + 5.2 19.6 5.5/341 84.1 8.1 268/0.22 115 .95 Apr. 10 18 52.78 +17 57.5 18 54.99 +18 01.4 6.996 7.099 -0.23 + 5.0 19.6 6.0/327 91.9 8.1 261/0.22 45 .52 20 18 50.49 +18 48.1 18 52.69 +18 51.8 6.952 7.188 -0.33 + 4.7 19.6 6.7/315 99.6 7.9 254/0.22 119 .09 30 18 47.19 +19 35.3 18 49.36 +19 38.8 6.915 7.276 -0.43 + 4.2 19.7 7.3/305 107.1 7.6 247/0.21 89 .97 May 10 18 42.91 +20 17.3 18 45.07 +20 20.5 6.889 7.363 -0.52 + 3.5 19.7 8.0/296 114.3 7.2 239/0.20 55 .49 20 18 37.77 +20 52.3 18 39.91 +20 55.2 6.878 7.450 -0.59 + 2.6 19.7 8.6/288 121.0 6.7 229/0.19 132 .15 30 18 31.92 +21 18.7 18 34.05 +21 21.1 6.885 7.537 -0.64 + 1.6 19.8 9.0/281 126.8 6.2 218/0.17 65 .98 June 9 18 25.57 +21 35.1 18 27.69 +21 37.1 6.914 7.623 -0.66 + 0.5 19.8 9.3/274 131.4 5.7 205/0.16 79 .44 19 18 18.95 +21 40.9 18 21.07 +21 42.3 6.966 7.709 -0.66 - 0.6 19.9 9.3/267 134.2 5.4 190/0.15 120 .20 29 18 12.32 +21 35.7 18 14.44 +21 36.7 7.042 7.794 -0.64 - 1.6 19.9 9.1/260 135.0 5.3 175/0.15 50 .99 July 9 18 05.92 +21 20.1 18 08.05 +21 20.6 7.143 7.879 -0.59 - 2.6 20.0 8.7/253 133.6 5.4 160/0.15 107 .37 19 17 59.99 +20 54.9 18 02.13 +20 55.0 7.268 7.963 -0.53 - 3.4 20.1 8.1/246 130.3 5.6 146/0.15 94 .26 29 17 54.72 +20 21.6 17 56.87 +20 21.3 7.415 8.047 -0.45 - 4.0 20.1 7.4/238 125.4 5.9 133/0.15 54 1.00 Aug. 8 17 50.25 +19 42.0 17 52.41 +19 41.3 7.583 8.130 -0.36 - 4.5 20.2 6.7/229 119.5 6.2 123/0.16 129 .29 18 17 46.67 +18 57.7 17 48.85 +18 56.8 7.767 8.213 -0.26 - 4.7 20.3 6.0/218 112.9 6.5 114/0.16 69 .30 28 17 44.02 +18 10.6 17 46.22 +18 09.5 7.965 8.296 -0.17 - 4.8 20.4 5.4/207 105.8 6.7 106/0.16 73 1.00 Sept. 7 17 42.31 +17 22.5 17 44.52 +17 21.2 8.172 8.378 -0.08 - 4.8 20.5 4.9/193 98.4 6.8 99/0.16 131 .21 17 17 41.50 +16 34.7 17 43.73 +16 33.4 8.385 8.460 +0.01 - 4.6 20.6 4.6/179 90.9 6.8 93/0.16 49 .33 27 17 41.55 +15 48.7 17 43.80 +15 47.4 8.600 8.542 +0.08 - 4.3 20.7 4.5/164 83.4 6.7 87/0.15 97 1.00 Oct. 7 17 42.38 +15 05.5 17 44.64 +15 04.3 8.812 8.623 +0.15 - 3.9 20.7 4.5/150 75.9 6.5 80/0.14 111 .15 17 17 43.90 +14 26.0 17 46.18 +14 25.0 9.018 8.704 +0.21 - 3.5 20.8 4.7/138 68.6 6.1 74/0.13 43 .34 27 17 46.04 +13 51.1 17 48.33 +13 50.1 9.215 8.784 +0.27 - 3.0 20.9 4.9/128 61.5 5.7 67/0.12 122 .99 Nov. 6 17 48.68 +13 21.1 17 50.98 +13 20.3 9.398 8.865 +0.31 - 2.4 21.0 5.1/118 54.8 5.2 59/0.11 86 .11 16 17 51.74 +12 56.5 17 54.04 +12 56.0 9.566 8.944 +0.34 - 1.9 21.0 5.3/110 48.7 4.8 50/0.10 52 .36 26 17 55.11 +12 37.7 17 57.42 +12 37.5 9.716 9.024 +0.36 - 1.3 21.1 5.4/103 43.3 4.3 39/0.09 139 .97 Dec. 6 17 58.70 +12 24.8 18 01.01 +12 24.8 9.846 9.103 +0.37 - 0.7 21.2 5.5/ 97 39.1 3.9 27/0.08 62 .09 16 18 02.40 +12 17.9 18 04.72 +12 18.2 9.955 9.182 +0.37 - 0.1 21.2 5.5/ 91 36.5 3.7 12/0.07 71 .38 26 18 06.13 +12 17.0 18 08.44 +12 17.5 10.041 9.260 +0.36 + 0.5 21.3 5.4/ 84 35.7 3.6 356/0.07 134 .94 2027 Jan. 5 18 09.77 +12 22.0 18 12.09 +12 22.8 10.104 9.338 +0.35 + 1.1 21.3 5.2/ 78 37.1 3.6 341/0.07 45 .07 15 18 13.26 +12 32.6 18 15.57 +12 33.7 10.145 9.416 +0.32 + 1.6 21.3 5.0/ 71 40.3 3.9 327/0.08 95 .41 25 18 16.47 +12 48.6 18 18.78 +12 49.9 10.165 9.494 +0.29 + 2.1 21.4 4.7/ 63 44.9 4.2 315/0.08 112 .91 Feb. 4 18 19.34 +13 09.6 18 21.65 +13 11.1 10.165 9.571 +0.24 + 2.6 21.4 4.4/ 54 50.7 4.6 305/0.09 40 .06 14 18 21.78 +13 35.1 18 24.07 +13 36.8 10.147 9.648 +0.19 + 2.9 21.4 4.1/ 43 57.2 4.9 296/0.10 119 .46 24 18 23.70 +14 04.5 18 25.99 +14 06.3 10.114 9.725 +0.13 + 3.3 21.4 3.8/ 31 64.2 5.3 289/0.10 87 .88 Mar. 6 18 25.05 +14 37.0 18 27.32 +14 38.9 10.069 9.801 +0.07 + 3.5 21.4 3.6/ 16 71.6 5.5 282/0.11 53 .05