12P/Pons-Brooks Orbit by S. Nakano NK 4940 (2023) Observed in 1st half of 2024
Equinox 2000.0 T/TT q (AU) e P Peri. Node Inc. Tail(AU) Epoch 2024 Apr. 21.11829 0.7807598 0.9546108 71.3 198.98962 255.85609 74.19156 0.200 2024 Mar. 31.0 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 , ¡ ¡ ¡ ¡ ¡ ¡ 2023 Dec. 22 19 08.95 +37 42.3 19 10.69 +37 47.3 2.374 2.127 +2.60 - 0.3 9.8 30.8/ 88 63.6 24.5 19/1.86 89 .74 2024 Jan. 1 19 34.93 +37 38.0 19 36.71 +37 44.8 2.260 1.999 +2.97 + 0.8 9.4 35.1/ 86 62.2 25.8 14/2.04 114 .78 11 20 04.53 +37 44.3 20 06.36 +37 53.0 2.145 1.870 +3.38 + 1.4 8.9 39.9/ 85 60.6 27.3 11/2.26 67 .01 21 20 38.22 +37 55.9 20 40.11 +38 06.6 2.033 1.738 +3.83 + 0.9 8.4 45.1/ 86 58.7 28.9 9/2.51 91 .79 31 21 16.37 +38 03.1 21 18.36 +38 15.7 1.928 1.606 +4.29 - 0.9 7.9 50.6/ 88 56.3 30.7 8/2.78 124 .77 Feb. 10 21 59.15 +37 52.3 22 01.27 +38 06.8 1.833 1.473 +4.71 - 4.4 7.3 56.0/ 91 53.3 32.5 9/3.07 57 .00 20 22 46.10 +37 06.6 22 48.40 +37 22.4 1.753 1.341 +5.00 - 9.9 6.7 61.1/ 96 49.5 34.1 12/3.34 93 .82 Mar. 1 23 35.96 +35 27.0 23 38.45 +35 43.6 1.690 1.211 +5.09 -16.8 6.1 65.2/101 44.9 35.3 18/3.57 138 .75 11 00 26.72 +32 39.0 00 29.37 +32 55.6 1.647 1.086 +4.94 -24.3 5.5 68.1/108 39.7 35.7 26/3.69 35 .01 21 01 16.05 +28 36.7 01 18.81 +28 52.4 1.622 0.972 +4.61 -31.4 4.9 69.4/114 34.0 35.0 36/3.67 102 .84 31 02 02.05 +23 24.0 02 04.86 +23 38.3 1.612 0.876 +4.17 -37.1 4.3 69.4/120 28.6 33.0 50/3.51 143 .72 Apr. 10 02 43.80 +17 14.3 02 46.60 +17 26.8 1.609 0.809 +3.75 -40.9 3.9 68.2/126 24.3 30.6 70/3.27 7 .02 20 03 21.39 +10 26.9 03 24.12 +10 37.5 1.606 0.781 +3.44 -42.6 3.7 66.5/129 22.6 29.7 94/3.18 115 .86 30 03 55.86 +03 22.8 03 58.48 +03 31.4 1.596 0.799 +3.29 -42.6 3.8 65.2/131 24.6 31.7 119/3.40 123 .66 May 10 04 28.91 -03 41.5 04 31.40 -03 35.1 1.578 0.858 +3.33 -41.9 4.2 64.9/131 29.5 35.4 137/3.81 31 .05 20 05 02.36 -10 37.9 05 04.72 -10 33.9 1.559 0.949 +3.53 -40.7 4.7 65.5/129 35.9 38.8 148/4.17 118 .88 30 05 37.77 -17 22.5 05 39.98 -17 21.0 1.547 1.060 +3.83 -38.9 5.2 66.4/128 42.9 40.6 155/4.38 106 .58 June 9 06 16.23 -23 49.0 06 18.30 -23 50.3 1.551 1.182 +4.19 -36.0 5.8 66.6/125 49.7 40.9 159/4.40 53 .07 19 06 58.23 -29 46.0 07 00.17 -29 50.3 1.578 1.311 +4.52 -31.5 6.4 65.2/122 55.8 39.9 161/4.24 105 .90 29 07 43.49 -34 57.7 07 45.35 -35 05.0 1.634 1.443 +4.74 -25.6 7.0 62.1/118 60.8 38.0 161/3.93 107 .49 July 9 08 30.96 -39 10.6 08 32.80 -39 20.9 1.721 1.576 +4.80 -19.2 7.5 57.6/113 64.4 35.6 160/3.54 59 .09 19 09 18.85 -42 19.8 09 20.76 -42 32.6 1.838 1.709 +4.66 -13.1 8.1 52.2/109 66.5 33.0 158/3.11 93 .92 29 10 05.29 -44 29.3 10 07.33 -44 43.9 1.982 1.840 +4.37 - 8.3 8.7 46.7/104 67.0 30.5 156/2.70 117 .40 Aug. 8 10 48.82 -45 50.6 10 51.03 -46 06.5 2.148 1.970 +4.00 - 4.7 9.2 41.6/100 66.1 28.1 154/2.32 50 .11 18 11 28.65 -46 37.5 11 31.06 -46 54.0 2.332 2.098 +3.62 - 2.4 9.7 37.0/ 97 64.1 25.7 152/1.98 96 .95 28 12 04.65 -47 01.7 12 07.24 -47 18.4 2.527 2.225 +3.26 - 1.1 10.2 33.1/ 95 61.3 23.5 152/1.68 115 .33 Sept. 7 12 37.09 -47 12.6 12 39.86 -47 29.0 2.728 2.349 +2.95 - 0.3 10.6 29.9/ 93 57.7 21.3 151/1.42 37 .13 17 13 06.42 -47 16.4 13 09.34 -47 32.4 2.932 2.472 +2.68 0.0 11.1 27.1/ 92 53.6 19.1 152/1.20 114 .98 27 13 33.09 -47 17.1 13 36.14 -47 32.4 3.134 2.593 +2.46 + 0.1 11.4 24.9/ 92 49.2 17.0 153/1.01 102 .28 Oct. 7 13 57.55 -47 17.0 14 00.71 -47 31.5 3.331 2.712 +2.27 0.0 11.8 23.0/ 92 44.6 15.0 155/0.84 31 .15 17 14 20.12 -47 17.4 14 23.39 -47 31.0 3.519 2.829 +2.11 - 0.1 12.2 21.3/ 92 40.0 13.1 158/0.70 136 1.00 27 14 41.09 -47 19.0 14 44.44 -47 31.6 3.694 2.945 +1.96 - 0.2 12.5 19.9/ 92 35.7 11.4 164/0.58 83 .25 Nov. 6 15 00.66 -47 22.0 15 04.09 -47 33.7 3.856 3.059 +1.84 - 0.4 12.8 18.6/ 93 31.8 9.8 171/0.48 42 .18 16 15 18.96 -47 26.6 15 22.46 -47 37.3 4.001 3.171 +1.72 - 0.5 13.0 17.4/ 93 28.9 8.7 182/0.41 155 1.00 26 15 36.07 -47 32.7 15 39.63 -47 42.4 4.127 3.282 +1.60 - 0.7 13.3 16.2/ 94 27.4 7.9 194/0.37 62 .24 Dec. 6 15 52.04 -47 40.5 15 55.65 -47 49.3 4.233 3.391 +1.49 - 0.9 13.5 15.0/ 95 27.6 7.7 208/0.35 65 .23 16 16 06.86 -47 50.1 16 10.51 -47 57.9 4.319 3.499 +1.37 - 1.0 13.7 13.7/ 96 29.8 8.0 221/0.36 150 .99 26 16 20.49 -48 01.4 16 24.18 -48 08.3 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 14.8 16 36.60 -48 20.9 4.427 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 30.3 16 47.65 -48 35.6 4.449 3.815 +0.96 - 1.7 14.2 9.6/101 44.9 10.5 248/0.45 126 .99 25 16 53.43 -48 48.2 16 57.22 -48 52.8 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 4.020 +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 34.7 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 55.6 17 15.31 -49 59.0 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 21.3 17 17.15 -50 24.5 4.312 4.318 -0.06 - 2.6 14.8 2.6/192 83.8 13.2 271/0.58 153 .42 16 17 12.65 -50 46.8 17 16.56 -50 50.0 4.255 4.415 -0.32 - 2.3 14.9 3.8/232 92.7 13.0 276/0.58 70 .97 26 17 09.48 -51 09.9 17 13.39 -51 13.5 4.199 4.511 -0.58 - 1.9 15.0 5.7/251 101.9 12.5 281/0.56 59 .16