172P/Yeung Orbit by T. Kobayashi NK 4990 (2022) Last obs. 2025 06 04 (Q11)
Equinox 2000.0 T/TT q (AU) e P Peri. Node Inc. Tail(AU) Epoch 2025 Nov. 2.33165 3.3581217 0.2052918 8.69 208.86777 30.87423 11.22094 0.200 2026 June 9.0 m1 = 10.5 + 5 log Delta + 10.0 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 , ¡ ¡ ¡ ¡ ¡ ¡ 2025 Dec. 31 16 53.93 -28 12.0 16 57.07 -28 16.7 4.244 3.367 +1.57 - 3.8 18.9 21.0/101 23.7 6.7 263/0.30 155 .84 2026 Jan. 10 17 09.62 -28 50.9 17 12.79 -28 54.5 4.183 3.371 +1.55 - 3.3 18.9 20.5/100 30.3 8.5 265/0.39 67 .56 20 17 25.07 -29 25.4 17 28.26 -29 27.8 4.109 3.375 +1.51 - 2.9 18.9 19.9/ 99 37.0 10.1 265/0.47 50 .01 30 17 40.14 -29 55.9 17 43.34 -29 57.3 4.021 3.379 +1.46 - 2.6 18.8 19.1/ 99 43.8 11.6 265/0.55 176 .89 Feb. 9 17 54.69 -30 23.1 17 57.91 -30 23.4 3.922 3.384 +1.39 - 2.4 18.8 18.1/ 98 50.7 13.0 264/0.63 45 .55 19 18 08.58 -30 47.7 18 11.81 -30 46.9 3.813 3.390 +1.31 - 2.2 18.7 17.0/ 98 57.7 14.3 264/0.71 76 .03 Mar. 1 18 21.65 -31 10.6 18 24.88 -31 08.9 3.695 3.396 +1.21 - 2.1 18.6 15.6/ 99 64.9 15.3 264/0.78 146 .93 11 18 33.72 -31 32.9 18 36.96 -31 30.3 3.570 3.402 +1.09 - 2.2 18.6 14.1/100 72.3 16.1 264/0.85 22 .54 21 18 44.63 -31 55.8 18 47.87 -31 52.4 3.440 3.409 +0.95 - 2.4 18.5 12.4/102 79.9 16.7 264/0.91 106 .05 31 18 54.16 -32 20.4 18 57.41 -32 16.3 3.308 3.416 +0.80 - 2.7 18.4 10.4/105 87.7 17.0 264/0.96 117 .95 Apr. 10 19 02.14 -32 47.8 19 05.39 -32 43.2 3.175 3.424 +0.62 - 3.1 18.4 8.4/112 95.8 16.9 264/0.99 7 .52 20 19 08.33 -33 18.8 19 11.59 -33 13.8 3.046 3.433 +0.42 - 3.5 18.3 6.3/124 104.1 16.5 266/1.00 139 .09 30 19 12.53 -33 54.0 19 15.80 -33 48.7 2.923 3.441 +0.21 - 3.9 18.2 4.7/147 112.8 15.6 267/0.99 86 .97 May 10 19 14.57 -34 33.2 19 17.85 -34 27.7 2.809 3.451 -0.02 - 4.2 18.1 4.2/184 121.9 14.4 270/0.95 35 .49 20 19 14.32 -35 15.2 19 17.62 -35 09.8 2.709 3.460 -0.25 - 4.3 18.1 5.3/215 131.2 12.7 274/0.87 171 .15 30 19 11.76 -35 58.1 19 15.09 -35 52.9 2.626 3.470 -0.47 - 4.1 18.0 7.0/234 140.7 10.7 279/0.75 52 .98 June 9 19 07.08 -36 39.0 19 10.43 -36 34.1 2.564 3.481 -0.64 - 3.6 18.0 8.5/245 150.1 8.4 289/0.60 71 .44 19 19 00.61 -37 14.4 19 03.98 -37 09.9 2.525 3.492 -0.76 - 2.7 17.9 9.5/253 158.8 6.0 305/0.44 140 .20 29 18 52.97 -37 40.8 18 56.37 -37 36.9 2.513 3.503 -0.80 - 1.6 17.9 9.6/260 164.6 4.4 337/0.33 18 .99 July 9 18 44.94 -37 56.1 18 48.35 -37 52.7 2.527 3.515 -0.76 - 0.4 18.0 9.0/267 163.8 4.6 19/0.34 112 .37 19 18 37.34 -37 59.2 18 40.76 -37 56.4 2.568 3.527 -0.64 + 0.8 18.0 7.6/275 157.1 6.4 47/0.46 100 .26 29 18 30.96 -37 51.1 18 34.37 -37 48.8 2.635 3.539 -0.46 + 1.7 18.1 5.7/287 148.2 8.7 62/0.61 25 1.00 Aug. 8 18 26.35 -37 33.9 18 29.76 -37 31.8 2.725 3.552 -0.25 + 2.4 18.2 3.8/308 138.8 10.8 70/0.74 153 .29 18 18 23.86 -37 09.9 18 27.26 -37 08.0 2.835 3.565 -0.02 + 2.8 18.3 2.8/354 129.4 12.7 76/0.83 64 .30 28 18 23.65 -36 41.6 18 27.03 -36 39.7 2.961 3.578 +0.20 + 3.1 18.4 3.9/ 38 120.3 14.1 79/0.89 58 1.00 Sept. 7 18 25.64 -36 10.7 18 29.01 -36 08.8 3.099 3.592 +0.41 + 3.3 18.5 5.9/ 57 111.4 15.1 82/0.91 164 .21 17 18 29.72 -35 38.5 18 33.07 -35 36.2 3.247 3.606 +0.59 + 3.3 18.6 8.0/ 66 102.8 15.8 84/0.91 34 .33 27 18 35.67 -35 05.5 18 39.01 -35 02.8 3.400 3.620 +0.76 + 3.4 18.7 9.9/ 70 94.5 16.0 85/0.88 90 1.00 Oct. 7 18 43.27 -34 31.8 18 46.58 -34 28.5 3.556 3.634 +0.90 + 3.5 18.9 11.7/ 73 86.5 15.9 86/0.84 131 .15 17 18 52.28 -33 57.1 18 55.57 -33 53.2 3.712 3.649 +1.02 + 3.7 19.0 13.2/ 75 78.7 15.5 87/0.79 10 .34 27 19 02.48 -33 21.1 19 05.75 -33 16.5 3.864 3.664 +1.12 + 3.8 19.1 14.6/ 75 71.1 14.9 87/0.72 121 .99 Nov. 6 19 13.67 -32 43.5 19 16.90 -32 38.1 4.011 3.679 +1.20 + 4.1 19.2 15.7/ 76 63.6 14.0 88/0.66 101 .11 16 19 25.66 -32 03.7 19 28.86 -31 57.5 4.150 3.695 +1.26 + 4.3 19.3 16.6/ 76 56.3 12.9 88/0.59 20 .36 26 19 38.27 -31 21.5 19 41.44 -31 14.4 4.280 3.710 +1.30 + 4.6 19.4 17.4/ 76 49.2 11.6 89/0.52 151 .97 Dec. 6 19 51.35 -30 36.6 19 54.49 -30 28.7 4.398 3.726 +1.34 + 4.8 19.4 18.0/ 75 42.1 10.2 90/0.44 75 .09 16 20 04.76 -29 49.0 20 07.87 -29 40.3 4.503 3.742 +1.36 + 5.1 19.5 18.5/ 75 35.2 8.7 91/0.37 43 .38 26 20 18.38 -28 58.7 20 21.44 -28 49.1 4.594 3.758 +1.37 + 5.4 19.6 18.8/ 74 28.4 7.2 94/0.30 173 .94 2027 Jan. 5 20 32.08 -28 05.8 20 35.11 -27 55.4 4.670 3.775 +1.37 + 5.6 19.6 19.0/ 74 21.9 5.6 99/0.23 51 .07 15 20 45.78 -27 10.6 20 48.77 -26 59.5 4.729 3.791 +1.36 + 5.8 19.7 19.1/ 73 15.7 4.0 108/0.16 68 .41 25 20 59.38 -26 13.5 21 02.33 -26 01.7 4.771 3.808 +1.34 + 5.9 19.7 19.0/ 73 10.7 2.7 128/0.11 150 .91 Feb. 4 21 12.79 -25 15.0 21 15.70 -25 02.5 4.796 3.825 +1.31 + 6.0 19.7 18.9/ 72 8.8 2.2 168/0.09 29 .06 14 21 25.96 -24 15.6 21 28.83 -24 02.5 4.804 3.842 +1.28 + 6.0 19.8 18.6/ 72 11.7 3.0 203/0.12 94 .46 24 21 38.79 -23 16.1 21 41.62 -23 02.4 4.794 3.859 +1.24 + 6.0 19.8 18.2/ 71 17.1 4.3 221/0.17 124 .88 Mar. 6 21 51.24 -22 16.9 21 54.04 -22 02.7 4.767 3.876 +1.20 + 5.8 19.8 17.7/ 71 23.3 5.8 229/0.23 10 .05