171P/Spahr Orbit by T. Kobayashi NK 4989 (2022) Last obs. 2019 04 10 (I81)
Equinox 2000.0 T/TT q (AU) e P Peri. Node Inc. Tail(AU) Epoch 2025 Sep. 25.10688 1.7672299 0.5025632 6.70 347.06971 101.69290 21.95376 0.200 2024 Mar. 31.0 m1 = 11.5 + 5 log Delta + 15.0 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 , ¡ ¡ ¡ ¡ ¡ ¡ 2023 Dec. 22 20 04.06 -27 54.9 20 07.12 -27 46.2 5.268 4.437 -0.29 + 0.6 24.8 14.0/ 81 29.4 6.2 91/0.23 90 .74 2024 Jan. 1 20 14.47 -27 32.8 20 17.51 -27 23.4 5.301 4.405 -0.29 + 0.5 24.8 14.6/ 81 21.9 4.8 96/0.17 145 .78 11 20 25.27 -27 08.6 20 28.29 -26 58.6 5.314 4.372 -0.30 + 0.4 24.7 15.0/ 80 15.0 3.3 106/0.12 20 .01 21 20 36.35 -26 42.7 20 39.34 -26 32.1 5.306 4.338 -0.30 + 0.3 24.7 15.3/ 80 9.4 2.1 131/0.08 120 .79 31 20 47.59 -26 15.5 20 50.56 -26 04.3 5.276 4.304 -0.31 + 0.2 24.6 15.5/ 80 8.4 1.9 180/0.07 120 .77 Feb. 10 20 58.91 -25 47.4 21 01.86 -25 35.6 5.226 4.270 -0.32 + 0.1 24.5 15.6/ 80 12.9 3.0 214/0.11 11 .00 20 21 10.23 -25 19.0 21 13.15 -25 06.6 5.154 4.234 -0.33 0.0 24.5 15.5/ 80 19.3 4.4 227/0.17 147 .82 Mar. 1 21 21.46 -24 51.0 21 24.35 -24 38.1 5.064 4.198 -0.34 - 0.1 24.4 15.3/ 80 26.3 6.0 233/0.23 95 .75 11 21 32.52 -24 24.2 21 35.39 -24 10.8 4.954 4.162 -0.36 - 0.2 24.3 15.0/ 81 33.5 7.6 237/0.29 42 .01 21 21 43.34 -23 59.3 21 46.17 -23 45.5 4.828 4.125 -0.37 - 0.4 24.1 14.6/ 82 40.7 9.1 239/0.36 172 .84 31 21 53.82 -23 37.5 21 56.64 -23 23.2 4.687 4.087 -0.39 - 0.5 24.0 14.0/ 83 48.1 10.5 240/0.43 68 .72 Apr. 10 22 03.90 -23 19.6 22 06.70 -23 04.9 4.531 4.049 -0.41 - 0.6 23.9 13.3/ 85 55.5 11.8 242/0.49 73 .02 20 22 13.48 -23 06.9 22 16.25 -22 52.0 4.365 4.010 -0.43 - 0.8 23.7 12.4/ 87 63.0 12.9 243/0.56 160 .86 30 22 22.46 -23 00.7 22 25.21 -22 45.5 4.190 3.970 -0.45 - 0.9 23.6 11.4/ 91 70.6 13.8 244/0.63 39 .66 May 10 22 30.72 -23 02.2 22 33.46 -22 46.7 4.008 3.930 -0.48 - 1.1 23.4 10.3/ 96 78.3 14.6 245/0.69 103 .05 20 22 38.14 -23 12.9 22 40.87 -22 57.3 3.822 3.889 -0.51 - 1.2 23.3 9.1/104 86.2 15.0 246/0.74 133 .88 30 22 44.57 -23 34.1 22 47.28 -23 18.3 3.636 3.848 -0.54 - 1.4 23.1 7.9/115 94.3 15.2 248/0.79 12 .58 June 9 22 49.84 -24 07.1 22 52.55 -23 51.1 3.452 3.806 -0.58 - 1.5 22.9 7.0/131 102.6 15.1 250/0.82 134 .07 19 22 53.75 -24 52.8 22 56.45 -24 36.8 3.274 3.763 -0.62 - 1.6 22.7 6.7/151 111.2 14.6 253/0.83 103 .90 29 22 56.11 -25 51.7 22 58.82 -25 35.6 3.106 3.720 -0.66 - 1.7 22.5 7.2/173 119.9 13.7 257/0.82 37 .49 July 9 22 56.72 -27 03.4 22 59.44 -26 47.3 2.951 3.676 -0.71 - 1.8 22.3 8.5/192 128.9 12.4 262/0.78 160 .09 19 22 55.41 -28 26.2 22 58.14 -28 10.1 2.814 3.631 -0.76 - 1.7 22.1 10.0/205 137.7 10.8 269/0.72 69 .92 29 22 52.10 -29 56.9 22 54.85 -29 40.8 2.698 3.586 -0.80 - 1.6 22.0 11.6/216 146.2 9.1 281/0.62 76 .40 Aug. 8 22 46.83 -31 30.4 22 49.60 -31 14.5 2.605 3.540 -0.84 - 1.4 21.8 12.6/224 153.2 7.4 299/0.53 149 .11 18 22 39.85 -33 00.3 22 42.65 -32 44.6 2.540 3.494 -0.87 - 1.1 21.7 12.9/231 157.0 6.5 326/0.47 33 .95 28 22 31.66 -34 19.8 22 34.50 -34 04.3 2.502 3.447 -0.88 - 0.7 21.6 12.4/239 155.6 7.0 356/0.51 117 .33 Sept. 7 22 22.95 -35 22.6 22 25.83 -35 07.4 2.491 3.399 -0.88 - 0.3 21.5 11.0/247 149.7 8.6 19/0.64 114 .13 17 22 14.60 -36 04.5 22 17.52 -35 49.5 2.506 3.351 -0.86 0.0 21.4 8.9/257 141.5 10.8 34/0.79 26 .98 27 22 07.43 -36 23.9 22 10.37 -36 09.1 2.543 3.303 -0.83 + 0.3 21.3 6.4/272 132.4 12.9 44/0.94 153 .28 Oct. 7 22 02.10 -36 21.5 22 05.06 -36 06.9 2.598 3.254 -0.79 + 0.5 21.3 4.3/300 123.1 14.9 52/1.06 79 .15 17 21 59.07 -35 59.5 22 02.03 -35 45.1 2.668 3.204 -0.75 + 0.5 21.2 3.9/350 113.9 16.5 58/1.14 60 1.00 27 21 58.52 -35 21.2 22 01.47 -35 06.7 2.747 3.154 -0.72 + 0.5 21.2 5.7/ 24 105.0 17.7 62/1.19 157 .25 Nov. 6 22 00.44 -34 29.2 22 03.37 -34 14.6 2.832 3.103 -0.68 + 0.3 21.1 8.2/ 40 96.4 18.5 66/1.21 48 .18 16 22 04.69 -33 26.0 22 07.60 -33 11.3 2.919 3.052 -0.66 + 0.1 21.1 10.8/ 48 88.2 18.9 69/1.20 94 1.00 26 22 11.04 -32 13.5 22 13.92 -31 58.6 3.003 3.001 -0.64 - 0.1 21.0 13.2/ 53 80.4 18.9 71/1.17 134 .24 Dec. 6 22 19.25 -30 53.1 22 22.09 -30 37.9 3.084 2.949 -0.63 - 0.5 21.0 15.5/ 56 72.9 18.6 74/1.12 21 .23 16 22 29.08 -29 25.7 22 31.88 -29 10.3 3.157 2.897 -0.62 - 0.8 20.9 17.5/ 58 65.8 18.1 76/1.06 124 .99 26 22 40.29 -27 52.1 22 43.05 -27 36.4 3.222 2.844 -0.61 - 1.2 20.9 19.3/ 60 59.0 17.2 78/1.00 112 .23 2025 Jan. 5 22 52.70 -26 12.8 22 55.42 -25 56.8 3.278 2.792 -0.61 - 1.6 20.8 21.0/ 61 52.6 16.2 80/0.93 21 .28 15 23 06.12 -24 28.2 23 08.80 -24 11.9 3.322 2.739 -0.62 - 2.0 20.7 22.5/ 62 46.5 15.1 83/0.85 147 .99 25 23 20.42 -22 38.7 23 23.06 -22 22.2 3.354 2.686 -0.62 - 2.4 20.6 23.9/ 62 40.7 13.8 86/0.77 91 .22 Feb. 4 23 35.49 -20 44.8 23 38.09 -20 28.2 3.375 2.633 -0.63 - 2.8 20.4 25.2/ 63 35.3 12.5 90/0.70 45 .35 14 23 51.24 -18 46.9 23 53.81 -18 30.2 3.384 2.580 -0.65 - 3.3 20.3 26.3/ 63 30.3 11.1 96/0.62 162 .98 24 00 07.60 -16 45.6 00 10.15 -16 28.9 3.382 2.527 -0.66 - 3.7 20.2 27.4/ 64 25.7 9.8 102/0.55 72 .19 Mar. 6 00 24.54 -14 41.3 00 27.07 -14 24.7 3.368 2.474 -0.68 - 4.2 20.0 28.5/ 64 21.7 8.5 111/0.48 69 .42 16 00 42.03 -12 34.7 00 44.55 -12 18.3 3.344 2.422 -0.70 - 4.7 19.9 29.4/ 65 18.5 7.5 123/0.42 161 .97 26 01 00.05 -10 26.5 01 02.56 -10 10.4 3.311 2.370 -0.73 - 5.2 19.7 30.4/ 65 16.3 6.8 138/0.39 53 .16