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. 25.08742 1.7663457 0.5027260 6.69 347.09980 101.69467 21.95484 0.200 2025 May 5.0 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 , ¡ ¡ ¡ ¡ ¡ ¡ 2024 Dec. 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 80/0.92 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 90/0.69 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 9.8 102/0.54 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 Apr. 5 01 18.61 -08 17.4 01 21.12 -08 01.7 3.268 2.319 -0.75 - 5.6 19.6 31.2/ 66 15.4 6.6 155/0.38 90 .49 15 01 37.71 -06 08.3 01 40.22 -05 53.1 3.218 2.268 -0.79 - 6.1 19.4 32.1/ 67 15.7 6.9 173/0.40 148 .96 25 01 57.37 -03 59.8 01 59.89 -03 45.3 3.161 2.219 -0.82 - 6.6 19.2 32.9/ 68 17.0 7.6 188/0.45 34 .11 May 5 02 17.60 -01 53.1 02 20.14 -01 39.4 3.099 2.171 -0.86 - 7.0 19.0 33.6/ 69 19.1 8.7 201/0.53 107 .54 15 02 38.42 +00 10.9 02 40.99 +00 23.7 3.031 2.124 -0.90 - 7.4 18.8 34.3/ 70 21.6 10.1 211/0.62 134 .95 25 02 59.85 +02 11.1 03 02.44 +02 22.9 2.960 2.079 -0.95 - 7.8 18.6 35.0/ 71 24.3 11.5 219/0.73 20 .07 June 4 03 21.90 +04 06.5 03 24.52 +04 17.1 2.886 2.035 -0.99 - 8.1 18.4 35.6/ 72 27.0 13.1 226/0.84 122 .58 14 03 44.55 +05 56.0 03 47.21 +06 05.2 2.809 1.994 -1.05 - 8.4 18.2 36.1/ 73 29.9 14.7 232/0.97 120 .93 24 04 07.82 +07 38.4 04 10.52 +07 46.2 2.732 1.955 -1.10 - 8.6 18.1 36.6/ 75 32.7 16.3 238/1.10 21 .03 July 4 04 31.67 +09 12.7 04 34.40 +09 18.9 2.653 1.920 -1.16 - 8.8 17.9 37.0/ 76 35.6 18.0 243/1.24 134 .61 14 04 56.04 +10 38.1 04 58.81 +10 42.6 2.574 1.887 -1.22 - 8.8 17.7 37.3/ 78 38.5 19.6 248/1.39 104 .89 24 05 20.90 +11 53.9 05 23.69 +11 56.6 2.494 1.857 -1.28 - 8.8 17.5 37.5/ 80 41.4 21.2 253/1.54 33 .01 Aug. 3 05 46.13 +12 59.4 05 48.95 +13 00.3 2.415 1.832 -1.34 - 8.7 17.4 37.6/ 81 44.3 22.8 258/1.71 146 .64 13 06 11.65 +13 54.7 06 14.49 +13 53.8 2.336 1.810 -1.40 - 8.6 17.2 37.6/ 83 47.3 24.3 263/1.87 86 .84 23 06 37.34 +14 40.0 06 40.19 +14 37.2 2.257 1.792 -1.46 - 8.3 17.1 37.4/ 84 50.5 25.8 267/2.05 48 .00 Sept. 2 07 03.06 +15 15.9 07 05.92 +15 11.3 2.178 1.779 -1.52 - 7.9 16.9 37.1/ 85 53.8 27.2 271/2.23 159 .66 12 07 28.67 +15 43.6 07 31.52 +15 37.2 2.100 1.770 -1.57 - 7.5 16.8 36.6/ 86 57.2 28.6 275/2.41 66 .77 22 07 54.03 +16 04.8 07 56.87 +15 56.7 2.021 1.767 -1.63 - 7.0 16.7 35.9/ 87 60.9 29.8 279/2.59 63 .00 Oct. 2 08 18.96 +16 21.5 08 21.79 +16 11.9 1.943 1.768 -1.68 - 6.3 16.7 35.1/ 87 64.8 30.8 282/2.78 173 .70 12 08 43.31 +16 36.7 08 46.12 +16 25.7 1.865 1.773 -1.72 - 5.6 16.6 33.9/ 87 69.1 31.7 285/2.96 44 .69 22 09 06.92 +16 53.2 09 09.71 +16 41.0 1.787 1.784 -1.77 - 4.8 16.5 32.5/ 86 73.6 32.4 287/3.14 79 .00 Nov. 1 09 29.56 +17 15.0 09 32.33 +17 01.7 1.709 1.798 -1.81 - 3.9 16.5 30.9/ 84 78.6 32.7 289/3.30 163 .73 11 09 51.06 +17 46.0 09 53.81 +17 31.8 1.633 1.818 -1.86 - 2.7 16.5 29.0/ 81 83.9 32.8 290/3.44 21 .63 21 10 11.15 +18 30.4 10 13.88 +18 15.5 1.558 1.841 -1.91 - 1.5 16.4 26.8/ 76 89.7 32.5 291/3.56 98 .01 Dec. 1 10 29.53 +19 32.6 10 32.24 +19 17.2 1.486 1.868 -1.97 0.0 16.4 24.5/ 69 96.1 31.7 291/3.63 138 .78 11 10 45.87 +20 56.5 10 48.57 +20 40.6 1.419 1.899 -2.05 + 1.8 16.4 22.2/ 60 102.9 30.4 290/3.63 12 .59 21 10 59.76 +22 45.1 11 02.44 +22 28.9 1.357 1.933 -2.14 + 3.7 16.5 20.1/ 48 110.3 28.5 288/3.56 121 .01 31 11 10.72 +24 59.2 11 13.39 +24 42.9 1.305 1.970 -2.25 + 5.8 16.5 18.7/ 33 118.2 26.1 284/3.39 105 .84 2026 Jan. 10 11 18.31 +27 36.4 11 20.97 +27 19.9 1.264 2.010 -2.38 + 7.9 16.6 18.0/ 16 126.4 23.2 278/3.11 40 .56 20 11 22.10 +30 29.7 11 24.76 +30 13.2 1.238 2.052 -2.53 + 9.6 16.6 17.7/359 134.5 20.0 269/2.74 147 .01 30 11 21.91 +33 26.7 11 24.59 +33 10.2 1.231 2.096 -2.68 +10.6 16.8 17.2/344 141.9 16.9 256/2.33 68 .89 Feb. 9 11 18.01 +36 11.4 11 20.71 +35 55.0 1.244 2.142 -2.80 +10.8 16.9 15.9/330 147.4 14.4 237/1.97 74 .55 19 11 11.16 +38 27.5 11 13.90 +38 11.1 1.279 2.189 -2.87 +10.2 17.1 13.6/315 149.5 13.2 213/1.78 146 .03 Mar. 1 11 02.74 +40 02.1 11 05.53 +39 45.9 1.337 2.238 -2.85 + 8.9 17.4 10.7/298 147.7 13.7 189/1.77 35 .93