261P/Larson Orbit by S. Nakano NK 4032 (2020) Last obs. 2020 02 12 (A77)
Equinox 2000.0 T/TT q (AU) e P Peri. Node Inc. Tail(AU) Epoch 2025 Dec. 27.25279 2.0136701 0.4230813 6.52 67.34032 291.06578 6.07211 0.200 2024 Mar. 31.0 m1 = 11.5 + 5 log Delta + 10.0 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 14 25.33 -19 58.0 14 28.14 -20 11.4 5.027 4.437 -0.32 + 1.3 21.5 12.2/112 48.5 9.6 284/0.36 166 .74 2024 Jan. 1 14 33.37 -20 43.3 14 36.20 -20 56.4 4.877 4.414 -0.33 + 1.3 21.4 11.2/112 56.6 10.7 285/0.42 68 .78 11 14 40.75 -21 25.7 14 43.60 -21 38.3 4.715 4.389 -0.35 + 1.3 21.3 9.9/113 64.9 11.7 285/0.47 58 .01 21 14 47.31 -22 04.5 14 50.18 -22 16.9 4.542 4.364 -0.37 + 1.3 21.2 8.5/114 73.4 12.5 285/0.52 162 .79 31 14 52.88 -22 39.5 14 55.77 -22 51.6 4.363 4.339 -0.39 + 1.4 21.1 6.8/117 82.1 13.0 286/0.57 41 .77 Feb. 10 14 57.28 -23 10.2 15 00.18 -23 22.1 4.180 4.313 -0.41 + 1.4 21.0 4.9/121 91.1 13.2 287/0.60 91 .00 20 15 00.32 -23 35.8 15 03.23 -23 47.5 3.997 4.287 -0.44 + 1.5 20.8 2.9/134 100.4 13.1 287/0.62 130 .82 Mar. 1 15 01.82 -23 55.8 15 04.74 -24 07.4 3.819 4.260 -0.46 + 1.5 20.7 1.4/189 109.9 12.6 288/0.62 11 .75 11 15 01.66 -24 09.2 15 04.58 -24 20.9 3.650 4.232 -0.49 + 1.6 20.6 2.7/257 119.8 11.8 290/0.61 128 .01 21 14 59.75 -24 15.1 15 02.67 -24 26.9 3.494 4.204 -0.51 + 1.7 20.5 5.0/272 130.0 10.5 292/0.56 97 .84 31 14 56.12 -24 12.6 14 59.03 -24 24.5 3.356 4.176 -0.53 + 1.8 20.3 7.2/279 140.6 8.7 295/0.49 25 .72 Apr. 10 14 50.91 -24 00.9 14 53.81 -24 13.1 3.240 4.146 -0.54 + 2.0 20.2 9.1/283 151.3 6.7 300/0.39 168 .02 20 14 44.43 -23 39.8 14 47.31 -23 52.3 3.150 4.117 -0.55 + 2.1 20.1 10.5/286 161.9 4.3 311/0.26 61 .86 30 14 37.13 -23 10.0 14 40.00 -23 22.8 3.089 4.087 -0.55 + 2.2 20.1 11.1/289 171.0 2.2 344/0.13 66 .66 May 10 14 29.57 -22 33.1 14 32.42 -22 46.3 3.057 4.056 -0.54 + 2.3 20.0 10.8/292 170.1 2.4 60/0.15 149 .05 20 14 22.35 -21 51.8 14 25.18 -22 05.3 3.056 4.025 -0.53 + 2.4 20.0 9.8/295 160.6 4.8 88/0.29 24 .88 30 14 16.01 -21 09.4 14 18.81 -21 23.2 3.083 3.993 -0.51 + 2.4 20.0 8.1/299 150.0 7.3 97/0.44 109 .58 June 9 14 10.97 -20 29.2 14 13.76 -20 43.2 3.135 3.961 -0.49 + 2.3 20.0 6.0/306 139.4 9.6 101/0.57 109 .07 19 14 07.54 -19 54.2 14 10.32 -20 08.3 3.208 3.928 -0.47 + 2.2 20.0 3.7/319 129.0 11.6 104/0.68 14 .90 29 14 05.86 -19 26.4 14 08.63 -19 40.6 3.298 3.895 -0.45 + 2.2 20.0 1.9/ 4 119.1 13.2 106/0.75 151 .49 July 9 14 05.95 -19 07.2 14 08.72 -19 21.4 3.400 3.861 -0.43 + 2.0 20.0 2.8/ 69 109.5 14.4 108/0.79 74 .09 19 14 07.78 -18 57.1 14 10.55 -19 11.2 3.510 3.826 -0.42 + 1.9 20.1 4.9/ 89 100.4 15.1 109/0.81 48 .92 29 14 11.24 -18 55.8 14 14.01 -19 09.8 3.624 3.792 -0.41 + 1.8 20.1 7.1/ 96 91.7 15.5 109/0.80 170 .40 Aug. 8 14 16.21 -19 02.9 14 18.99 -19 16.7 3.737 3.756 -0.40 + 1.7 20.1 9.1/ 99 83.3 15.6 110/0.78 44 .11 18 14 22.56 -19 17.5 14 25.36 -19 31.0 3.848 3.720 -0.40 + 1.6 20.1 11.0/101 75.2 15.3 110/0.75 80 .95 28 14 30.16 -19 38.4 14 32.97 -19 51.6 3.952 3.684 -0.40 + 1.5 20.1 12.6/102 67.4 14.7 110/0.70 137 .33 Sept. 7 14 38.91 -20 04.7 14 41.73 -20 17.5 4.048 3.647 -0.40 + 1.4 20.2 14.1/103 59.8 13.8 110/0.65 17 .13 17 14 48.69 -20 35.2 14 51.53 -20 47.5 4.133 3.610 -0.40 + 1.4 20.2 15.4/103 52.5 12.8 110/0.58 112 .98 27 14 59.40 -21 08.8 15 02.27 -21 20.6 4.206 3.572 -0.41 + 1.3 20.1 16.6/103 45.3 11.5 110/0.52 109 .28 Oct. 7 15 10.98 -21 44.4 15 13.88 -21 55.5 4.265 3.534 -0.42 + 1.2 20.1 17.6/102 38.2 10.1 110/0.45 8 .15 17 15 23.35 -22 20.9 15 26.27 -22 31.4 4.308 3.495 -0.43 + 1.1 20.1 18.5/102 31.3 8.5 110/0.38 142 1.00 27 15 36.42 -22 57.3 15 39.37 -23 07.0 4.336 3.456 -0.44 + 1.0 20.1 19.2/101 24.5 6.8 111/0.30 84 .25 Nov. 6 15 50.14 -23 32.7 15 53.12 -23 41.6 4.347 3.417 -0.46 + 0.9 20.0 19.9/100 17.8 5.1 113/0.22 33 .18 16 16 04.44 -24 06.0 16 07.45 -24 14.0 4.341 3.377 -0.48 + 0.7 20.0 20.5/ 99 11.2 3.3 118/0.14 171 1.00 26 16 19.26 -24 36.6 16 22.28 -24 43.6 4.318 3.336 -0.50 + 0.6 19.9 20.9/ 98 5.1 1.5 137/0.07 62 .24 Dec. 6 16 34.51 -25 03.5 16 37.56 -25 09.5 4.278 3.296 -0.52 + 0.4 19.8 21.3/ 97 4.0 1.2 228/0.05 59 .23 16 16 50.13 -25 26.0 16 53.20 -25 31.0 4.220 3.255 -0.54 + 0.2 19.8 21.6/ 95 9.7 2.9 259/0.13 162 .99 26 17 06.03 -25 43.7 17 09.11 -25 47.5 4.147 3.213 -0.57 0.0 19.7 21.8/ 94 16.1 4.9 265/0.22 41 .23 2025 Jan. 5 17 22.13 -25 56.0 17 25.22 -25 58.6 4.057 3.171 -0.60 - 0.2 19.6 21.8/ 92 22.5 6.8 267/0.32 86 .28 15 17 38.32 -26 02.4 17 41.43 -26 03.9 3.953 3.130 -0.63 - 0.5 19.4 21.8/ 91 29.0 8.8 267/0.42 138 .99 25 17 54.52 -26 02.9 17 57.63 -26 03.2 3.835 3.087 -0.66 - 0.8 19.3 21.7/ 89 35.5 10.7 267/0.53 20 .22 Feb. 4 18 10.63 -25 57.4 18 13.73 -25 56.5 3.704 3.045 -0.70 - 1.1 19.2 21.5/ 87 42.0 12.5 266/0.64 115 .35 14 18 26.51 -25 45.8 18 29.60 -25 43.8 3.563 3.002 -0.73 - 1.4 19.0 21.1/ 86 48.6 14.3 265/0.75 115 .98 24 18 42.06 -25 28.5 18 45.15 -25 25.3 3.412 2.959 -0.77 - 1.8 18.9 20.6/ 84 55.1 15.9 264/0.87 4 .19 Mar. 6 18 57.16 -25 05.8 19 00.23 -25 01.6 3.253 2.916 -0.82 - 2.2 18.7 19.9/ 83 61.7 17.4 263/0.99 143 .42 16 19 11.67 -24 38.4 19 14.72 -24 33.1 3.087 2.874 -0.87 - 2.7 18.5 19.1/ 81 68.4 18.8 262/1.12 93 .97 26 19 25.46 -24 06.8 19 28.49 -24 00.6 2.918 2.831 -0.92 - 3.2 18.3 18.0/ 79 75.1 19.9 261/1.25 28 .16