12P/Pons-Brooks Orbit by S. Nakano NK 5196 (2024) Observed in 2nd half of 2024
Equinox 2000.0 T/TT q (AU) e P Peri. Node Inc. Tail(AU) Epoch 2024 Apr. 21.13561 0.7810952 0.9546934 71.6 199.00794 255.85649 74.19010 0.200 2025 May 5.0 m1 = 4.0 + 5 log Delta + 12.0 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 16 20.49 -48 01.5 16 24.18 -48 08.4 4.383 3.606 +1.24 - 1.3 13.9 12.5/ 97 33.6 8.7 233/0.38 41 .23 2025 Jan. 5 16 32.87 -48 14.9 16 36.60 -48 20.9 4.426 3.711 +1.10 - 1.5 14.1 11.1/ 99 38.8 9.5 242/0.41 93 .28 15 16 43.89 -48 30.4 16 47.65 -48 35.7 4.449 3.815 +0.96 - 1.7 14.2 9.6/101 44.9 10.5 249/0.45 126 .99 25 16 53.43 -48 48.3 16 57.22 -48 52.9 4.452 3.918 +0.79 - 2.0 14.4 8.0/105 51.7 11.4 254/0.49 23 .22 Feb. 4 17 01.33 -49 08.5 17 05.14 -49 12.6 4.437 4.019 +0.61 - 2.2 14.5 6.3/111 59.1 12.1 259/0.52 124 .35 14 17 07.40 -49 31.1 17 11.23 -49 34.8 4.406 4.120 +0.41 - 2.4 14.6 4.6/122 66.9 12.7 263/0.55 99 .98 24 17 11.45 -49 55.7 17 15.31 -49 59.1 4.363 4.219 +0.18 - 2.6 14.7 3.1/146 75.1 13.1 267/0.57 30 .19 Mar. 6 17 13.27 -50 21.4 17 17.15 -50 24.6 4.311 4.318 -0.06 - 2.6 14.8 2.6/192 83.8 13.2 272/0.58 153 .42 16 17 12.65 -50 46.9 17 16.55 -50 50.1 4.255 4.415 -0.32 - 2.3 14.9 3.8/232 92.7 13.0 276/0.58 70 .97 26 17 09.47 -51 10.0 17 13.39 -51 13.5 4.199 4.511 -0.58 - 1.9 15.0 5.7/251 101.9 12.5 282/0.56 59 .16 Apr. 5 17 03.67 -51 28.1 17 07.59 -51 32.1 4.149 4.607 -0.83 - 1.0 15.1 7.8/262 111.2 11.7 288/0.53 148 .49 15 16 55.35 -51 37.7 16 59.27 -51 42.2 4.110 4.701 -1.05 + 0.2 15.1 9.8/270 120.7 10.6 296/0.49 40 .96 25 16 44.87 -51 35.3 16 48.77 -51 40.5 4.086 4.795 -1.21 + 1.7 15.2 11.4/277 129.9 9.3 306/0.43 97 .11 May 5 16 32.79 -51 17.7 16 36.64 -51 23.8 4.085 4.887 -1.30 + 3.4 15.3 12.6/284 138.6 7.8 318/0.36 114 .54 15 16 19.89 -50 43.3 16 23.69 -50 50.3 4.109 4.979 -1.29 + 5.0 15.4 13.3/291 146.0 6.5 335/0.30 25 .95 25 16 07.04 -49 52.2 16 10.78 -50 00.0 4.161 5.070 -1.21 + 6.5 15.6 13.4/298 150.9 5.6 358/0.26 137 .07 June 4 15 55.06 -48 46.6 15 58.72 -48 55.1 4.244 5.160 -1.05 + 7.6 15.7 13.0/305 151.8 5.3 24/0.24 77 .58 14 15 44.59 -47 30.2 15 48.17 -47 39.4 4.357 5.249 -0.86 + 8.2 15.8 12.1/312 148.4 5.8 48/0.25 51 .93 24 15 36.02 -46 07.9 15 39.53 -46 17.6 4.500 5.338 -0.66 + 8.3 16.0 10.8/320 142.1 6.7 66/0.29 157 .03 July 4 15 29.52 -44 44.0 15 32.96 -44 54.1 4.669 5.426 -0.45 + 8.1 16.2 9.4/329 134.1 7.7 78/0.32 42 .61 14 15 25.08 -43 22.6 15 28.47 -43 32.9 4.861 5.513 -0.26 + 7.6 16.3 8.1/339 125.5 8.6 87/0.34 88 .89 24 15 22.57 -42 06.5 15 25.91 -42 17.0 5.071 5.599 -0.08 + 6.9 16.5 6.9/353 116.6 9.3 93/0.35 128 .01 Aug. 3 15 21.81 -40 57.7 15 25.12 -41 08.3 5.296 5.685 +0.08 + 6.1 16.7 6.1/ 8 107.6 9.8 98/0.35 17 .64 13 15 22.59 -39 57.1 15 25.87 -40 07.6 5.531 5.770 +0.21 + 5.2 16.8 5.8/ 25 98.6 10.0 102/0.35 126 .84 23 15 24.69 -39 05.0 15 27.96 -39 15.4 5.770 5.855 +0.32 + 4.4 17.0 5.8/ 41 89.8 9.9 105/0.33 93 .00 Sept. 2 15 27.93 -38 21.2 15 31.20 -38 31.4 6.011 5.939 +0.42 + 3.6 17.2 6.1/ 54 81.1 9.7 108/0.31 31 .66 12 15 32.13 -37 45.2 15 35.39 -37 55.2 6.248 6.022 +0.50 + 2.9 17.3 6.6/ 64 72.5 9.2 110/0.28 161 .77 22 15 37.12 -37 16.3 15 40.38 -37 26.0 6.477 6.104 +0.56 + 2.3 17.5 7.1/ 72 64.0 8.5 113/0.25 62 .00 Oct. 2 15 42.76 -36 53.7 15 46.02 -37 03.0 6.695 6.186 +0.62 + 1.8 17.6 7.6/ 77 55.7 7.7 115/0.22 59 .70 12 15 48.91 -36 36.5 15 52.17 -36 45.5 6.899 6.268 +0.66 + 1.3 17.8 8.0/ 81 47.4 6.7 118/0.19 156 .69 22 15 55.45 -36 24.1 15 58.72 -36 32.7 7.086 6.348 +0.68 + 0.9 17.9 8.3/ 84 39.4 5.7 122/0.16 33 .00 Nov. 1 16 02.28 -36 15.8 16 05.56 -36 23.9 7.253 6.429 +0.70 + 0.5 18.0 8.5/ 87 31.6 4.6 128/0.12 90 .73 11 16 09.26 -36 10.7 16 12.55 -36 18.4 7.398 6.508 +0.71 + 0.3 18.1 8.5/ 89 24.3 3.6 137/0.09 124 .63 21 16 16.31 -36 08.5 16 19.60 -36 15.7 7.520 6.588 +0.70 0.0 18.2 8.5/ 90 18.1 2.7 154/0.07 10 .01 Dec. 1 16 23.30 -36 08.7 16 26.61 -36 15.4 7.616 6.666 +0.68 - 0.2 18.3 8.3/ 92 14.5 2.1 182/0.05 122 .78 11 16 30.14 -36 10.7 16 33.46 -36 16.9 7.687 6.744 +0.66 - 0.3 18.4 8.0/ 93 15.6 2.3 214/0.06 93 .59 21 16 36.71 -36 14.3 16 40.04 -36 20.1 7.733 6.822 +0.62 - 0.4 18.4 7.5/ 94 20.8 2.9 237/0.07 27 .01 31 16 42.91 -36 19.2 16 46.25 -36 24.6 7.753 6.899 +0.57 - 0.6 18.5 6.9/ 95 27.9 3.8 249/0.10 155 .84 2026 Jan. 10 16 48.62 -36 25.1 16 51.96 -36 30.1 7.749 6.976 +0.51 - 0.6 18.6 6.2/ 96 35.9 4.7 257/0.12 64 .56 20 16 53.72 -36 31.9 16 57.08 -36 36.6 7.723 7.052 +0.44 - 0.7 18.6 5.3/ 98 44.3 5.6 262/0.14 57 .01 30 16 58.10 -36 39.4 17 01.47 -36 43.8 7.676 7.128 +0.36 - 0.8 18.7 4.3/100 53.1 6.3 265/0.16 165 .89 Feb. 9 17 01.66 -36 47.4 17 05.03 -36 51.5 7.612 7.203 +0.26 - 0.8 18.7 3.2/104 62.1 7.0 268/0.18 35 .55 19 17 04.28 -36 55.5 17 07.65 -36 59.4 7.534 7.278 +0.16 - 0.8 18.7 2.1/113 71.3 7.4 270/0.19 89 .03 Mar. 1 17 05.86 -37 03.5 17 09.24 -37 07.3 7.446 7.352 +0.05 - 0.7 18.8 0.9/142 80.7 7.6 273/0.20 130 .93