1P/Halley Orbit by T. Kobayashi NK 2431 (2012) Last obs. 2003 03 08 (309)
Equinox 2000.0 T/TT q (AU) e P Peri. Node Inc. Tail(AU) Epoch 2061 Aug. 7.45277 0.5711288 0.9680202 75.5 112.26003 59.36031 162.17876 0.200 2026 June 9.0 m2 = 13.6 + 5 log Delta + 5.0 log r + 0.03 phase Date/ 0h TT R.A.(1950) Decl. R.A.(2000) Decl. Delta r Variation Magnitude Mot./PA Elong. P PA/Tail Moon Age h m ¡ , h m ¡ , for T=+1 day m2 , ¡ ¡ ¡ ¡ ¡ ¡ 2025 Dec. 31 08 15.16 +02 35.3 08 17.77 +02 25.9 34.234 35.076 0.00 0.0 29.0 1.7/277 148.6 0.8 314/0.00 77 .84 2026 Jan. 10 08 14.04 +02 37.4 08 16.65 +02 28.1 34.170 35.075 0.00 0.0 29.0 1.8/280 156.6 0.6 328/0.00 66 .56 20 08 12.87 +02 40.5 08 15.48 +02 31.3 34.135 35.073 0.00 0.0 29.0 1.8/283 162.2 0.5 353/0.00 160 .01 30 08 11.70 +02 44.6 08 14.30 +02 35.4 34.130 35.071 0.00 0.0 29.0 1.8/286 162.6 0.5 28/0.00 41 .89 Feb. 9 08 10.55 +02 49.5 08 13.16 +02 40.4 34.154 35.069 0.00 0.0 29.0 1.7/289 157.7 0.6 55/0.00 97 .55 19 08 09.47 +02 55.0 08 12.08 +02 45.9 34.208 35.067 0.00 0.0 29.0 1.6/292 149.9 0.8 71/0.00 134 .03 Mar. 1 08 08.49 +03 00.9 08 11.10 +02 52.0 34.289 35.065 0.00 0.0 29.0 1.4/296 141.1 1.0 81/0.01 20 .93 11 08 07.64 +03 07.2 08 10.25 +02 58.2 34.393 35.063 0.00 0.0 29.0 1.2/301 131.8 1.2 87/0.01 127 .54 21 08 06.94 +03 13.5 08 09.55 +03 04.6 34.519 35.061 0.00 0.0 29.1 1.0/308 122.3 1.4 92/0.01 99 .05 31 08 06.41 +03 19.6 08 09.03 +03 10.8 34.660 35.059 0.00 0.0 29.1 0.8/319 112.8 1.5 96/0.01 44 .95 Apr. 10 08 06.07 +03 25.5 08 08.69 +03 16.7 34.813 35.057 0.00 0.0 29.1 0.6/337 103.3 1.6 99/0.01 154 .52 20 08 05.92 +03 30.9 08 08.54 +03 22.1 34.973 35.055 0.00 0.0 29.1 0.5/ 7 93.9 1.6 102/0.01 62 .09 30 08 05.95 +03 35.7 08 08.57 +03 26.9 35.135 35.053 0.00 0.0 29.1 0.5/ 39 84.5 1.6 104/0.01 76 .97 May 10 08 06.17 +03 39.7 08 08.79 +03 30.9 35.294 35.051 0.00 0.0 29.1 0.7/ 61 75.3 1.6 107/0.01 156 .49 20 08 06.56 +03 43.0 08 09.18 +03 34.1 35.446 35.049 0.00 0.0 29.1 0.9/ 74 66.1 1.5 110/0.01 28 .15 30 08 07.11 +03 45.3 08 09.73 +03 36.4 35.587 35.047 0.00 0.0 29.1 1.0/ 82 57.1 1.4 114/0.01 107 .98 June 9 08 07.79 +03 46.7 08 10.41 +03 37.8 35.712 35.045 0.00 0.0 29.1 1.2/ 88 48.3 1.2 118/0.01 128 .44 19 08 08.59 +03 47.1 08 11.22 +03 38.2 35.818 35.042 0.00 0.0 29.1 1.3/ 92 39.7 1.1 123/0.01 24 .20 29 08 09.49 +03 46.6 08 12.11 +03 37.6 35.903 35.040 0.00 0.0 29.1 1.5/ 96 31.5 0.9 131/0.00 137 .99 July 9 08 10.45 +03 45.2 08 13.07 +03 36.1 35.964 35.038 0.00 0.0 29.1 1.5/ 99 24.0 0.7 143/0.00 94 .37 19 08 11.46 +03 42.8 08 14.08 +03 33.7 36.000 35.036 0.00 0.0 29.1 1.6/102 18.2 0.5 163/0.00 53 .26 29 08 12.48 +03 39.7 08 15.10 +03 30.5 36.009 35.033 0.00 0.0 29.1 1.6/105 15.9 0.5 194/0.00 160 1.00 Aug. 8 08 13.49 +03 35.8 08 16.11 +03 26.5 35.991 35.031 0.00 0.0 29.1 1.5/107 18.5 0.5 225/0.00 59 .29 18 08 14.46 +03 31.3 08 17.08 +03 22.0 35.947 35.029 0.00 0.0 29.1 1.4/111 24.6 0.7 245/0.00 84 .30 28 08 15.36 +03 26.3 08 17.98 +03 16.9 35.877 35.026 0.00 0.0 29.1 1.3/114 32.2 0.9 257/0.00 150 1.00 Sept. 7 08 16.18 +03 20.9 08 18.79 +03 11.4 35.783 35.024 0.00 0.0 29.1 1.2/119 40.6 1.1 264/0.01 25 .21 17 08 16.87 +03 15.2 08 19.48 +03 05.8 35.668 35.021 0.00 0.0 29.1 1.0/125 49.3 1.2 270/0.01 114 .33 27 08 17.43 +03 09.5 08 20.04 +03 00.0 35.534 35.019 0.00 0.0 29.1 0.8/133 58.4 1.4 274/0.01 119 1.00 Oct. 7 08 17.83 +03 03.9 08 20.44 +02 54.4 35.385 35.017 0.00 0.0 29.1 0.6/148 67.6 1.5 277/0.01 27 .15 17 08 18.05 +02 58.6 08 20.66 +02 49.1 35.225 35.014 0.00 0.0 29.1 0.5/173 77.0 1.6 280/0.01 143 .34 27 08 18.10 +02 53.7 08 20.70 +02 44.1 35.058 35.012 0.00 0.0 29.1 0.5/208 86.5 1.6 283/0.01 84 .99 Nov. 6 08 17.95 +02 49.4 08 20.55 +02 39.8 34.889 35.009 0.00 0.0 29.1 0.6/235 96.1 1.6 286/0.01 58 .11 16 08 17.60 +02 45.8 08 20.21 +02 36.3 34.724 35.006 0.00 0.0 29.1 0.8/251 105.8 1.6 289/0.01 162 .36 26 08 17.08 +02 43.1 08 19.68 +02 33.6 34.567 35.004 0.00 0.0 29.1 1.1/261 115.5 1.5 292/0.01 48 .97 Dec. 6 08 16.38 +02 41.4 08 18.98 +02 31.9 34.423 35.001 0.00 0.0 29.0 1.3/267 125.3 1.3 296/0.01 92 .09 16 08 15.52 +02 40.7 08 18.12 +02 31.3 34.298 34.999 0.00 0.0 29.0 1.5/272 134.9 1.1 302/0.01 144 .38 26 08 14.53 +02 41.1 08 17.14 +02 31.8 34.194 34.996 0.00 0.0 29.0 1.6/276 144.2 0.9 309/0.01 19 .94 2027 Jan. 5 08 13.45 +02 42.7 08 16.05 +02 33.4 34.116 34.993 0.00 0.0 29.0 1.7/279 152.8 0.7 320/0.00 124 .07 15 08 12.29 +02 45.3 08 14.90 +02 36.1 34.065 34.991 0.00 0.0 29.0 1.8/282 159.9 0.6 340/0.00 112 .41 25 08 11.11 +02 48.9 08 13.72 +02 39.8 34.044 34.988 0.00 0.0 29.0 1.8/285 163.2 0.5 11/0.00 36 .91 Feb. 4 08 09.94 +02 53.4 08 12.55 +02 44.3 34.054 34.985 0.00 0.0 29.0 1.8/287 160.6 0.5 43/0.00 153 .06 14 08 08.82 +02 58.6 08 11.43 +02 49.6 34.092 34.982 0.00 0.0 29.0 1.7/291 154.0 0.7 63/0.00 76 .46 24 08 07.78 +03 04.3 08 10.40 +02 55.4 34.159 34.980 0.00 0.0 29.0 1.5/294 145.5 0.9 76/0.01 70 .88 Mar. 6 08 06.86 +03 10.4 08 09.47 +03 01.6 34.252 34.977 0.00 0.0 29.0 1.3/299 136.4 1.1 83/0.01 158 .05