191P/McNaught Orbit by S. Nakano NK 4138 (2020) Last obs. 2022 01 14 (215)
Equinox 2000.0 T/TT q (AU) e P Peri. Node Inc. Tail(AU) Epoch 2028 Feb. 29.92769 2.2407676 0.3847271 6.95 284.24038 98.17891 8.83906 0.200 2026 June 9.0 m1 = 11.5 + 5 log Delta + 10.0 log r 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 m1 , ¡ ¡ ¡ ¡ ¡ ¡ 2025 Dec. 31 16 12.72 -16 09.9 16 15.57 -16 17.4 5.303 4.528 -0.30 + 1.3 21.7 13.5/100 34.6 7.1 287/0.26 163 .84 2026 Jan. 10 16 21.96 -16 33.2 16 24.83 -16 40.0 5.183 4.506 -0.31 + 1.3 21.6 12.8/ 99 42.4 8.5 285/0.31 56 .56 20 16 30.79 -16 52.5 16 33.66 -16 58.7 5.047 4.484 -0.32 + 1.3 21.5 11.9/ 97 50.4 9.7 283/0.37 64 .01 30 16 39.04 -17 07.9 16 41.93 -17 13.6 4.896 4.461 -0.33 + 1.3 21.4 10.9/ 96 58.5 10.9 281/0.42 158 .89 Feb. 9 16 46.59 -17 19.7 16 49.48 -17 24.8 4.733 4.438 -0.35 + 1.3 21.3 9.6/ 95 66.8 11.8 279/0.48 31 .55 19 16 53.27 -17 27.9 16 56.17 -17 32.6 4.561 4.415 -0.37 + 1.3 21.2 8.1/ 93 75.3 12.5 278/0.52 94 .03 Mar. 1 16 58.92 -17 32.9 17 01.83 -17 37.2 4.383 4.390 -0.39 + 1.4 21.1 6.4/ 92 84.0 13.0 276/0.56 127 .93 11 17 03.39 -17 35.1 17 06.29 -17 39.1 4.202 4.366 -0.41 + 1.4 21.0 4.4/ 89 92.9 13.1 275/0.59 11 .54 21 17 06.49 -17 34.8 17 09.40 -17 38.6 4.022 4.341 -0.43 + 1.4 20.9 2.3/ 84 102.1 13.0 274/0.61 127 .05 31 17 08.09 -17 32.6 17 11.00 -17 36.2 3.847 4.315 -0.45 + 1.5 20.8 0.4/355 111.5 12.4 273/0.61 93 .95 Apr. 10 17 08.07 -17 28.7 17 10.97 -17 32.3 3.682 4.290 -0.47 + 1.6 20.7 2.5/281 121.3 11.5 272/0.59 31 .52 20 17 06.35 -17 23.6 17 09.26 -17 27.4 3.531 4.263 -0.49 + 1.6 20.5 4.9/276 131.5 10.2 270/0.54 163 .09 30 17 02.97 -17 17.9 17 05.87 -17 21.9 3.398 4.236 -0.51 + 1.7 20.4 7.1/274 141.9 8.4 268/0.47 58 .97 May 10 16 58.05 -17 11.8 17 00.94 -17 16.1 3.287 4.209 -0.52 + 1.8 20.3 8.9/273 152.6 6.3 265/0.36 65 .49 20 16 51.85 -17 05.8 16 54.74 -17 10.6 3.202 4.182 -0.53 + 1.9 20.2 10.2/272 163.4 4.0 258/0.23 150 .15 30 16 44.77 -17 00.5 16 47.65 -17 05.8 3.145 4.153 -0.54 + 2.0 20.2 10.7/272 173.1 1.7 227/0.10 22 .98 June 9 16 37.32 -16 56.7 16 40.20 -17 02.5 3.119 4.125 -0.53 + 2.1 20.1 10.4/270 171.4 2.1 134/0.13 104 .44 19 16 30.04 -16 55.0 16 32.91 -17 01.3 3.121 4.096 -0.52 + 2.2 20.1 9.4/269 161.1 4.6 113/0.28 108 .20 29 16 23.48 -16 56.4 16 26.35 -17 03.1 3.152 4.067 -0.51 + 2.2 20.1 7.8/266 150.3 7.1 107/0.42 21 .99 July 9 16 18.08 -17 01.6 16 20.95 -17 08.7 3.208 4.037 -0.49 + 2.2 20.1 5.7/260 139.7 9.4 105/0.55 144 .37 19 16 14.18 -17 11.1 16 17.05 -17 18.4 3.285 4.007 -0.47 + 2.2 20.1 3.5/246 129.3 11.3 103/0.65 69 .26 29 16 11.97 -17 25.1 16 14.85 -17 32.6 3.379 3.976 -0.45 + 2.2 20.1 1.9/198 119.4 12.9 102/0.71 54 1.00 Aug. 8 16 11.54 -17 43.5 16 14.42 -17 51.0 3.485 3.945 -0.43 + 2.1 20.2 2.9/139 109.8 14.0 101/0.75 170 .29 18 16 12.87 -18 05.8 16 15.76 -18 13.3 3.599 3.913 -0.42 + 2.1 20.2 5.0/121 100.6 14.7 101/0.77 35 .30 28 16 15.91 -18 31.5 16 18.81 -18 38.8 3.718 3.882 -0.41 + 2.0 20.2 7.2/113 91.7 15.1 100/0.76 86 1.00 Sept. 7 16 20.54 -18 59.9 16 23.45 -19 06.8 3.836 3.849 -0.40 + 1.9 20.3 9.2/109 83.2 15.1 99/0.74 137 .21 17 16 26.64 -19 29.9 16 29.56 -19 36.5 3.951 3.817 -0.40 + 1.9 20.3 11.0/106 75.0 14.7 98/0.70 9 .33 27 16 34.09 -20 00.9 16 37.03 -20 06.9 4.060 3.784 -0.40 + 1.8 20.3 12.6/104 67.0 14.1 97/0.66 117 1.00 Oct. 7 16 42.75 -20 31.8 16 45.71 -20 37.2 4.161 3.750 -0.40 + 1.7 20.3 14.0/103 59.3 13.2 96/0.60 105 .15 17 16 52.52 -21 01.8 16 55.49 -21 06.6 4.251 3.717 -0.40 + 1.6 20.3 15.3/101 51.7 12.2 95/0.54 21 .34 27 17 03.26 -21 30.2 17 06.25 -21 34.2 4.328 3.682 -0.41 + 1.5 20.3 16.4/ 99 44.3 10.9 94/0.48 146 .99 Nov. 6 17 14.88 -21 56.1 17 17.88 -21 59.2 4.390 3.648 -0.41 + 1.4 20.3 17.4/ 98 37.0 9.4 93/0.41 76 .11 16 17 27.27 -22 18.8 17 30.29 -22 21.1 4.437 3.613 -0.42 + 1.3 20.3 18.2/ 96 29.9 7.8 91/0.34 44 .36 26 17 40.32 -22 37.8 17 43.35 -22 39.1 4.467 3.578 -0.44 + 1.2 20.3 18.9/ 95 22.8 6.1 90/0.26 174 .97 Dec. 6 17 53.94 -22 52.5 17 56.97 -22 52.8 4.481 3.543 -0.45 + 1.1 20.3 19.5/ 93 15.8 4.3 88/0.18 50 .09 16 18 08.02 -23 02.5 18 11.06 -23 01.8 4.476 3.507 -0.46 + 0.9 20.2 19.9/ 92 8.9 2.5 86/0.11 67 .38 26 18 22.47 -23 07.6 18 25.51 -23 05.9 4.454 3.471 -0.48 + 0.8 20.1 20.3/ 90 2.0 0.6 81/0.02 154 .94 2027 Jan. 5 18 37.20 -23 07.6 18 40.23 -23 04.8 4.414 3.435 -0.50 + 0.6 20.1 20.6/ 89 4.8 1.4 266/0.06 27 .07 15 18 52.11 -23 02.4 18 55.13 -22 58.6 4.356 3.398 -0.52 + 0.4 20.0 20.7/ 88 11.5 3.3 264/0.15 91 .41 25 19 07.09 -22 52.3 19 10.10 -22 47.4 4.282 3.362 -0.54 + 0.2 19.9 20.8/ 86 18.3 5.3 262/0.24 127 .91 Feb. 4 19 22.07 -22 37.3 19 25.07 -22 31.4 4.192 3.325 -0.56 0.0 19.8 20.7/ 85 25.0 7.2 261/0.33 5 .06 14 19 36.96 -22 18.1 19 39.94 -22 11.1 4.087 3.288 -0.58 - 0.2 19.7 20.6/ 84 31.7 9.1 259/0.42 117 .46 24 19 51.66 -21 55.0 19 54.61 -21 47.1 3.968 3.250 -0.61 - 0.4 19.6 20.3/ 83 38.3 10.9 258/0.52 102 .88 Mar. 6 20 06.08 -21 28.8 20 09.02 -21 20.0 3.837 3.213 -0.64 - 0.6 19.5 19.9/ 82 45.0 12.6 257/0.62 18 .05