74P/Smirnova-Chernykh Orbit by S. Nakano NK 5417 (2025) Observed in 2nd half of 2025
Equinox 2000.0 T/TT q (AU) e P Peri. Node Inc. Tail(AU) Epoch 2026 Feb. 9.79040 4.8360603 0.0708160 11.9 57.74590 48.42844 5.80808 0.200 2026 June 9.0 m1 = 4.5 + 5 log Delta + 15.0 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 06 55.64 +28 40.4 06 58.79 +28 36.3 3.862 4.839 -0.63 + 1.2 17.7 8.4/279 173.1 1.4 273/0.11 51 .84 2026 Jan. 10 06 49.32 +28 52.1 06 52.48 +28 48.4 3.867 4.839 -0.60 + 0.8 17.7 7.9/276 170.2 2.0 125/0.02 91 .56 20 06 43.29 +28 59.6 06 46.46 +28 56.4 3.903 4.838 -0.52 + 0.4 17.7 6.9/273 159.8 4.0 100/0.14 147 .01 30 06 38.06 +29 02.9 06 41.23 +29 00.0 3.968 4.838 -0.40 0.0 17.8 5.3/270 148.8 6.1 97/0.24 9 .89 Feb. 9 06 34.02 +29 02.3 06 37.19 +28 59.7 4.059 4.838 -0.26 - 0.4 17.8 3.4/264 138.0 7.8 96/0.33 126 .55 19 06 31.42 +28 58.5 06 34.59 +28 56.1 4.173 4.837 -0.10 - 0.6 17.9 1.5/245 127.4 9.3 95/0.40 109 .03 Mar. 1 06 30.41 +28 52.4 06 33.58 +28 50.0 4.304 4.837 +0.06 - 0.8 17.9 1.1/135 117.2 10.5 94/0.44 31 .93 11 06 31.01 +28 44.4 06 34.18 +28 42.1 4.447 4.837 +0.22 - 0.9 18.0 3.0/108 107.4 11.3 93/0.47 158 .54 21 06 33.18 +28 35.1 06 36.34 +28 32.6 4.598 4.837 +0.36 - 1.1 18.1 4.9/102 98.0 11.8 93/0.47 72 .05 31 06 36.80 +28 24.7 06 39.96 +28 21.9 4.753 4.838 +0.49 - 1.2 18.2 6.6/100 88.9 11.9 93/0.47 67 .95 Apr. 10 06 41.74 +28 13.1 06 44.89 +28 10.0 4.907 4.838 +0.61 - 1.3 18.2 8.2/ 99 80.2 11.8 93/0.45 172 .52 20 06 47.83 +28 00.3 06 50.97 +27 56.7 5.058 4.839 +0.71 - 1.5 18.3 9.5/ 99 71.8 11.4 93/0.43 37 .09 30 06 54.93 +27 46.0 06 58.06 +27 41.9 5.201 4.839 +0.79 - 1.6 18.4 10.7/ 98 63.7 10.8 93/0.39 97 .97 May 10 07 02.88 +27 30.1 07 06.00 +27 25.4 5.335 4.840 +0.86 - 1.8 18.4 11.7/ 99 55.8 9.9 93/0.36 144 .49 20 07 11.54 +27 12.3 07 14.64 +27 07.0 5.457 4.841 +0.92 - 2.0 18.5 12.5/ 99 48.1 9.0 93/0.31 3 .15 30 07 20.78 +26 52.5 07 23.87 +26 46.6 5.565 4.841 +0.97 - 2.3 18.5 13.2/ 99 40.7 7.8 93/0.27 125 .98 June 9 07 30.48 +26 30.6 07 33.55 +26 24.0 5.658 4.842 +1.00 - 2.5 18.5 13.7/100 33.4 6.6 92/0.23 116 .44 19 07 40.52 +26 06.5 07 43.58 +25 59.3 5.734 4.844 +1.03 - 2.7 18.6 14.1/100 26.2 5.3 91/0.18 28 .20 29 07 50.81 +25 40.2 07 53.85 +25 32.4 5.793 4.845 +1.04 - 2.9 18.6 14.4/101 19.2 3.9 87/0.13 151 .99 July 9 08 01.25 +25 12.0 08 04.26 +25 03.5 5.834 4.846 +1.05 - 3.1 18.6 14.6/102 12.4 2.6 79/0.08 86 .37 19 08 11.76 +24 41.8 08 14.75 +24 32.7 5.856 4.848 +1.05 - 3.2 18.6 14.7/102 6.4 1.3 52/0.04 57 .26 29 08 22.25 +24 10.1 08 25.21 +24 00.3 5.859 4.849 +1.04 - 3.4 18.6 14.6/103 5.3 1.1 342/0.04 175 1.00 Aug. 8 08 32.64 +23 37.1 08 35.58 +23 26.7 5.843 4.851 +1.02 - 3.4 18.6 14.5/103 10.8 2.3 312/0.08 55 .29 18 08 42.86 +23 03.2 08 45.77 +22 52.2 5.808 4.853 +0.99 - 3.5 18.6 14.2/104 17.6 3.6 303/0.13 83 .30 28 08 52.82 +22 28.9 08 55.72 +22 17.4 5.754 4.855 +0.96 - 3.5 18.6 13.8/104 24.7 5.0 300/0.18 157 1.00 Sept. 7 09 02.46 +21 54.8 09 05.33 +21 42.8 5.683 4.857 +0.92 - 3.4 18.6 13.3/104 32.0 6.3 298/0.23 23 .21 17 09 11.68 +21 21.5 09 14.53 +21 09.1 5.594 4.859 +0.87 - 3.2 18.5 12.6/104 39.4 7.5 297/0.27 109 .33 27 09 20.40 +20 49.8 09 23.23 +20 36.9 5.489 4.861 +0.81 - 3.0 18.5 11.8/104 47.0 8.7 297/0.32 129 1.00 Oct. 7 09 28.53 +20 20.3 09 31.34 +20 07.1 5.370 4.864 +0.74 - 2.7 18.5 10.8/104 54.8 9.7 297/0.37 11 .15 17 09 35.96 +19 54.0 09 38.76 +19 40.4 5.239 4.866 +0.66 - 2.3 18.4 9.6/103 62.9 10.5 297/0.41 135 .34 27 09 42.58 +19 31.7 09 45.37 +19 17.8 5.098 4.869 +0.57 - 1.8 18.3 8.3/102 71.2 11.1 297/0.44 97 .99 Nov. 6 09 48.29 +19 14.2 09 51.06 +19 00.1 4.949 4.872 +0.46 - 1.2 18.3 6.7/100 79.8 11.6 297/0.48 42 .11 16 09 52.94 +19 02.4 09 55.70 +18 48.2 4.796 4.875 +0.35 - 0.5 18.2 5.0/ 96 88.7 11.7 297/0.50 162 .36 26 09 56.43 +18 57.1 09 59.18 +18 42.7 4.643 4.878 +0.22 + 0.1 18.2 3.1/ 87 97.9 11.6 297/0.51 62 .97 Dec. 6 09 58.63 +18 58.6 10 01.38 +18 44.1 4.494 4.881 +0.08 + 0.9 18.1 1.5/ 54 107.5 11.1 298/0.51 74 .09 16 09 59.46 +19 07.3 10 02.21 +18 52.8 4.352 4.885 -0.06 + 1.6 18.0 1.8/332 117.5 10.3 298/0.49 164 .38 26 09 58.87 +19 22.8 10 01.62 +19 08.3 4.224 4.888 -0.20 + 2.2 18.0 3.5/308 127.7 9.2 299/0.46 25 .94 2027 Jan. 5 09 56.87 +19 44.3 09 59.64 +19 29.9 4.113 4.892 -0.33 + 2.6 17.9 5.3/300 138.3 7.7 301/0.41 108 .07 15 09 53.57 +20 10.4 09 56.35 +19 56.1 4.025 4.896 -0.44 + 2.9 17.9 6.8/295 149.2 5.9 304/0.34 129 .41 25 09 49.18 +20 39.0 09 51.97 +20 24.9 3.963 4.900 -0.52 + 2.9 17.8 7.8/292 160.0 3.9 310/0.25 18 .91 Feb. 4 09 44.01 +21 07.8 09 46.81 +20 53.9 3.931 4.904 -0.55 + 2.7 17.8 8.2/289 169.8 2.0 327/0.16 144 .06 14 09 38.45 +21 34.2 09 41.26 +21 20.5 3.929 4.908 -0.55 + 2.2 17.8 8.0/286 171.8 1.6 10/0.12 89 .46 24 09 32.95 +21 56.0 09 35.78 +21 42.6 3.958 4.912 -0.50 + 1.6 17.9 7.1/283 163.0 3.4 53/0.16 57 .88 Mar. 6 09 27.95 +22 11.7 09 30.78 +21 58.5 4.016 4.917 -0.41 + 0.9 17.9 5.8/279 152.4 5.4 69/0.24 173 .05