29P/Schwassmann-Wachmann 1 Orbit by S. Nakano NK 5128 (2024) Observed in 1st half of 2025
Equinox 2000.0 T/TT q (AU) e P Peri. Node Inc. Tail(AU) Epoch 2019 May 2.34884 5.7939898 0.0433466 14.9 52.10152 312.40397 9.35597 0.200 2025 May 5.0 m1 = 4.0 + 5 log Delta + 7.5 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 , ¡ ¡ ¡ ¡ ¡ ¡ 2024 Dec. 26 10 09.46 +09 06.3 10 12.10 +08 51.5 5.668 6.252 -0.18 0.0 13.7 2.7/270 122.5 7.6 292/0.26 66 .23 2025 Jan. 5 10 07.62 +09 06.2 10 10.27 +08 51.4 5.540 6.254 -0.28 + 0.5 13.7 4.2/277 133.1 6.6 293/0.23 162 .28 15 10 04.84 +09 11.5 10 07.49 +08 56.8 5.434 6.256 -0.36 + 1.0 13.6 5.4/281 144.0 5.3 294/0.19 24 .99 25 10 01.25 +09 21.4 10 03.90 +09 06.8 5.352 6.258 -0.42 + 1.4 13.6 6.4/283 155.0 3.8 296/0.14 100 .22 Feb. 4 09 57.05 +09 35.1 09 59.70 +09 20.7 5.298 6.260 -0.45 + 1.6 13.6 6.9/284 166.1 2.2 301/0.08 121 .35 14 09 52.51 +09 51.2 09 55.17 +09 36.9 5.276 6.262 -0.46 + 1.7 13.6 7.0/284 176.3 0.6 340/0.02 15 .98 24 09 47.92 +10 08.3 09 50.59 +09 54.2 5.285 6.263 -0.43 + 1.7 13.6 6.6/285 170.7 1.5 91/0.05 136 .19 Mar. 6 09 43.57 +10 25.0 09 46.25 +10 11.1 5.325 6.265 -0.38 + 1.5 13.6 5.8/285 159.8 3.1 101/0.11 79 .42 16 09 39.75 +10 39.9 09 42.43 +10 26.2 5.394 6.267 -0.31 + 1.2 13.6 4.7/285 148.9 4.7 104/0.17 50 .97 26 09 36.67 +10 51.9 09 39.35 +10 38.3 5.489 6.269 -0.22 + 0.8 13.7 3.3/285 138.3 6.1 105/0.21 172 .16 Apr. 5 09 34.49 +11 00.2 09 37.18 +10 46.7 5.607 6.270 -0.12 + 0.4 13.7 1.8/283 127.9 7.2 106/0.25 40 .49 15 09 33.31 +11 04.3 09 36.00 +10 50.8 5.742 6.272 -0.01 - 0.1 13.8 0.2/256 117.8 8.1 107/0.27 84 .96 25 09 33.17 +11 03.7 09 35.86 +10 50.3 5.890 6.274 +0.09 - 0.5 13.8 1.4/112 108.0 8.8 108/0.29 147 .11 May 5 09 34.06 +10 58.5 09 36.74 +10 45.0 6.046 6.275 +0.19 - 1.0 13.9 2.9/110 98.5 9.1 108/0.29 7 .54 15 09 35.92 +10 48.5 09 38.60 +10 34.9 6.207 6.277 +0.28 - 1.5 13.9 4.3/110 89.4 9.3 109/0.29 116 .95 25 09 38.67 +10 34.0 09 41.35 +10 20.3 6.366 6.279 +0.36 - 1.9 14.0 5.6/110 80.5 9.2 110/0.28 111 .07 June 4 09 42.25 +10 15.0 09 44.92 +10 01.2 6.522 6.280 +0.43 - 2.3 14.1 6.7/110 71.8 8.8 110/0.26 28 .58 14 09 46.54 +09 51.9 09 49.21 +09 37.9 6.670 6.282 +0.49 - 2.7 14.1 7.7/110 63.4 8.3 111/0.24 147 .93 24 09 51.45 +09 24.9 09 54.11 +09 10.7 6.808 6.283 +0.54 - 3.1 14.2 8.6/111 55.2 7.6 112/0.22 75 .03 July 4 09 56.89 +08 54.3 09 59.54 +08 39.9 6.932 6.285 +0.59 - 3.4 14.2 9.3/111 47.1 6.8 113/0.19 56 .61 14 10 02.76 +08 20.4 10 05.40 +08 05.8 7.041 6.286 +0.62 - 3.7 14.2 9.9/112 39.2 5.9 115/0.16 175 .89 24 10 08.98 +07 43.5 10 11.61 +07 28.7 7.133 6.287 +0.65 - 4.0 14.3 10.4/112 31.3 4.8 116/0.13 42 .01 Aug. 3 10 15.47 +07 04.0 10 18.09 +06 49.0 7.206 6.289 +0.67 - 4.2 14.3 10.8/113 23.6 3.7 119/0.10 82 .64 13 10 22.14 +06 22.2 10 24.75 +06 07.0 7.258 6.290 +0.68 - 4.4 14.3 11.0/113 15.9 2.5 124/0.07 148 .84 23 10 28.92 +05 38.5 10 31.53 +05 23.0 7.290 6.291 +0.68 - 4.5 14.3 11.1/114 8.6 1.4 137/0.04 12 .00 Sept. 2 10 35.74 +04 53.2 10 38.34 +04 37.6 7.299 6.293 +0.68 - 4.6 14.3 11.2/115 3.7 0.6 203/0.02 109 .66 12 10 42.53 +04 06.9 10 45.12 +03 51.2 7.287 6.294 +0.67 - 4.7 14.3 11.0/115 8.7 1.4 267/0.04 115 .77 22 10 49.21 +03 20.0 10 51.79 +03 04.1 7.253 6.295 +0.65 - 4.7 14.3 10.8/116 16.2 2.6 279/0.07 18 .00 Oct. 2 10 55.70 +02 32.9 10 58.27 +02 16.8 7.197 6.296 +0.62 - 4.7 14.3 10.4/117 24.1 3.7 284/0.10 136 .70 12 11 01.93 +01 46.2 11 04.50 +01 30.0 7.120 6.298 +0.59 - 4.6 14.3 9.9/117 32.2 4.8 286/0.13 81 .69 22 11 07.81 +01 00.4 11 10.38 +00 44.1 7.024 6.299 +0.55 - 4.4 14.2 9.3/118 40.4 5.9 288/0.16 45 .00 Nov. 1 11 13.27 +00 16.1 11 15.83 -00 00.3 6.910 6.300 +0.49 - 4.2 14.2 8.5/120 48.8 6.8 289/0.19 166 .73 11 11 18.20 -00 26.1 11 20.76 -00 42.5 6.780 6.301 +0.43 - 3.9 14.2 7.6/121 57.3 7.6 290/0.22 49 .63 21 11 22.52 -01 05.5 11 25.08 -01 22.0 6.636 6.302 +0.36 - 3.6 14.1 6.5/124 66.1 8.2 291/0.24 74 .01 Dec. 1 11 26.13 -01 41.4 11 28.68 -01 57.9 6.483 6.303 +0.28 - 3.2 14.1 5.3/127 75.1 8.7 292/0.26 160 .78 11 11 28.93 -02 13.1 11 31.49 -02 29.6 6.323 6.304 +0.19 - 2.7 14.0 3.9/133 84.4 8.9 293/0.27 17 .59 21 11 30.86 -02 39.9 11 33.41 -02 56.5 6.161 6.305 +0.10 - 2.1 13.9 2.6/146 93.9 9.0 294/0.28 104 .01 31 11 31.82 -03 01.2 11 34.37 -03 17.8 6.000 6.306 0.00 - 1.5 13.9 1.5/182 103.7 8.7 295/0.28 124 .84 2026 Jan. 10 11 31.78 -03 16.4 11 34.33 -03 33.0 5.846 6.307 -0.10 - 0.9 13.8 1.8/241 113.7 8.2 296/0.27 17 .56 20 11 30.73 -03 25.1 11 33.29 -03 41.6 5.704 6.307 -0.20 - 0.2 13.8 3.0/266 124.0 7.4 297/0.25 137 .01 30 11 28.71 -03 26.9 11 31.27 -03 43.5 5.578 6.308 -0.29 + 0.5 13.7 4.3/276 134.5 6.4 300/0.22 85 .89 Feb. 9 11 25.83 -03 22.2 11 28.38 -03 38.7 5.474 6.309 -0.36 + 1.1 13.7 5.5/281 145.2 5.1 303/0.18 50 .55 19 11 22.22 -03 11.3 11 24.77 -03 27.8 5.395 6.310 -0.41 + 1.6 13.7 6.4/285 155.8 3.7 308/0.13 173 .03 Mar. 1 11 18.11 -02 55.1 11 20.66 -03 11.5 5.344 6.310 -0.43 + 2.0 13.6 6.8/287 166.1 2.2 321/0.08 44 .93