123P/West-Hartley Orbit by S. Nakano NK 3780 (2019) Last obs. 2019 08 04 (349)
Equinox 2000.0 T/TT q (AU) e P Peri. Node Inc. Tail(AU) Epoch 2026 Sep. 22.25443 2.1574109 0.4444639 7.65 103.98023 45.88046 15.28992 0.200 2025 May 5.0 m1 = 6.0 + 5 log Delta + 21.0 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 00 35.83 -03 40.9 00 38.38 -03 24.4 4.202 4.367 -0.26 - 3.0 22.6 5.9/ 38 93.1 13.0 66/0.59 148 .23 2025 Jan. 5 00 38.23 -02 54.4 00 40.79 -02 37.9 4.328 4.333 -0.25 - 2.9 22.6 7.7/ 46 83.8 13.0 68/0.57 20 .28 15 00 41.93 -02 01.6 00 44.49 -01 45.2 4.450 4.300 -0.25 - 2.9 22.5 9.3/ 51 74.9 12.8 69/0.54 118 .99 25 00 46.79 -01 03.5 00 49.34 -00 47.2 4.566 4.265 -0.25 - 2.9 22.5 10.8/ 55 66.2 12.2 69/0.51 121 .22 Feb. 4 00 52.68 -00 01.0 00 55.24 +00 15.3 4.672 4.231 -0.25 - 2.9 22.5 12.1/ 57 57.9 11.4 70/0.46 17 .35 14 00 59.47 +01 05.1 01 02.04 +01 21.2 4.765 4.196 -0.25 - 2.9 22.5 13.3/ 59 49.8 10.4 71/0.41 147 .98 24 01 07.05 +02 13.8 01 09.63 +02 29.8 4.844 4.160 -0.25 - 2.9 22.4 14.3/ 60 41.9 9.1 73/0.36 94 .19 Mar. 6 01 15.32 +03 24.7 01 17.90 +03 40.5 4.906 4.124 -0.25 - 2.9 22.4 15.1/ 61 34.3 7.8 74/0.30 48 .42 16 01 24.17 +04 36.9 01 26.76 +04 52.4 4.951 4.088 -0.26 - 2.9 22.3 15.8/ 62 26.8 6.3 76/0.24 170 .97 26 01 33.52 +05 49.8 01 36.13 +06 05.1 4.977 4.051 -0.27 - 3.0 22.2 16.3/ 63 19.6 4.7 79/0.18 66 .16 Apr. 5 01 43.29 +07 03.0 01 45.92 +07 18.0 4.984 4.014 -0.27 - 3.0 22.2 16.7/ 64 12.6 3.1 85/0.12 77 .49 15 01 53.42 +08 15.9 01 56.06 +08 30.5 4.973 3.976 -0.28 - 3.0 22.1 17.0/ 65 6.0 1.5 102/0.06 162 .96 25 02 03.83 +09 28.0 02 06.49 +09 42.3 4.942 3.938 -0.30 - 3.1 22.0 17.2/ 66 3.5 0.9 193/0.03 38 .11 May 5 02 14.48 +10 38.9 02 17.16 +10 52.8 4.892 3.900 -0.31 - 3.1 21.9 17.3/ 66 9.1 2.4 234/0.09 104 .54 15 02 25.29 +11 48.2 02 27.99 +12 01.6 4.824 3.861 -0.33 - 3.2 21.7 17.4/ 67 15.7 4.1 243/0.16 138 .95 25 02 36.20 +12 55.7 02 38.93 +13 08.6 4.739 3.822 -0.34 - 3.2 21.6 17.3/ 68 22.4 5.8 247/0.23 10 .07 June 4 02 47.16 +14 01.0 02 49.91 +14 13.4 4.637 3.782 -0.36 - 3.3 21.5 17.1/ 68 29.0 7.5 249/0.31 128 .58 14 02 58.08 +15 03.8 03 00.85 +15 15.7 4.519 3.742 -0.39 - 3.4 21.3 16.8/ 69 35.7 9.1 251/0.39 113 .93 24 03 08.89 +16 04.1 03 11.70 +16 15.4 4.387 3.702 -0.41 - 3.4 21.1 16.3/ 69 42.5 10.7 253/0.46 24 .03 July 4 03 19.51 +17 01.7 03 22.34 +17 12.4 4.242 3.661 -0.44 - 3.5 21.0 15.7/ 69 49.3 12.2 254/0.54 152 .61 14 03 29.82 +17 56.5 03 32.67 +18 06.6 4.085 3.620 -0.47 - 3.6 20.8 15.0/ 70 56.2 13.5 256/0.63 85 .89 24 03 39.71 +18 48.7 03 42.59 +18 58.2 3.919 3.579 -0.50 - 3.7 20.6 14.1/ 69 63.3 14.7 257/0.71 53 .01 Aug. 3 03 49.03 +19 38.3 03 51.93 +19 47.2 3.744 3.537 -0.54 - 3.8 20.4 13.0/ 69 70.5 15.7 258/0.79 174 .64 13 03 57.61 +20 25.6 04 00.53 +20 34.0 3.563 3.495 -0.58 - 3.9 20.2 11.6/ 67 78.0 16.5 259/0.87 55 .84 23 04 05.27 +21 10.8 04 08.21 +21 18.7 3.379 3.453 -0.63 - 4.1 19.9 10.0/ 64 85.7 17.0 259/0.94 83 .00 Sept. 2 04 11.75 +21 54.3 04 14.72 +22 01.8 3.194 3.411 -0.68 - 4.3 19.7 8.2/ 59 93.7 17.2 260/1.00 157 .66 12 04 16.83 +22 36.4 04 19.81 +22 43.6 3.010 3.368 -0.74 - 4.5 19.5 6.2/ 49 102.1 17.0 260/1.05 21 .77 22 04 20.21 +23 17.5 04 23.21 +23 24.5 2.831 3.325 -0.80 - 4.8 19.2 4.4/ 26 111.0 16.4 260/1.07 113 .00 Oct. 2 04 21.60 +23 57.7 04 24.61 +24 04.5 2.661 3.283 -0.86 - 5.1 19.0 4.1/344 120.4 15.3 259/1.06 127 .70 12 04 20.75 +24 36.6 04 23.78 +24 43.5 2.504 3.239 -0.92 - 5.5 18.7 5.8/310 130.3 13.6 258/1.00 18 .69 22 04 17.48 +25 13.5 04 20.52 +25 20.6 2.363 3.196 -0.98 - 5.9 18.5 8.4/294 140.7 11.4 256/0.89 146 .00 Nov. 1 04 11.79 +25 47.0 04 14.84 +25 54.5 2.244 3.153 -1.03 - 6.4 18.2 11.0/286 151.7 8.6 251/0.71 90 .73 11 04 03.94 +26 15.5 04 06.99 +26 23.5 2.150 3.110 -1.06 - 7.0 18.0 12.9/281 162.9 5.4 241/0.46 58 .63 21 03 54.50 +26 37.2 03 57.54 +26 45.8 2.084 3.066 -1.07 - 7.5 17.8 13.7/277 172.5 2.4 204/0.21 176 .01 Dec. 1 03 44.36 +26 51.5 03 47.39 +27 00.8 2.048 3.023 -1.05 - 8.0 17.6 13.1/274 169.4 3.4 118/0.30 48 .78 11 03 34.58 +26 59.4 03 37.60 +27 09.2 2.042 2.980 -1.02 - 8.3 17.5 11.2/273 158.4 7.0 96/0.62 100 .59 21 03 26.19 +27 03.2 03 29.21 +27 13.5 2.064 2.937 -0.97 - 8.4 17.4 8.2/273 146.8 10.6 88/0.92 138 .01 31 03 20.03 +27 06.3 03 23.04 +27 17.0 2.109 2.894 -0.91 - 8.3 17.3 4.6/278 135.5 13.8 84/1.18 5 .84 2026 Jan. 10 03 16.60 +27 12.3 03 19.60 +27 23.1 2.174 2.852 -0.86 - 8.2 17.2 1.3/329 124.8 16.5 81/1.36 137 .56 20 03 16.08 +27 23.5 03 19.08 +27 34.3 2.252 2.809 -0.82 - 7.9 17.2 3.7/ 61 114.7 18.6 79/1.48 102 .01 30 03 18.49 +27 41.3 03 21.50 +27 52.1 2.340 2.768 -0.79 - 7.6 17.1 7.3/ 70 105.2 20.1 78/1.55 35 .89 Feb. 9 03 23.64 +28 06.1 03 26.67 +28 16.6 2.433 2.726 -0.77 - 7.2 17.1 10.6/ 73 96.4 21.1 77/1.56 167 .55 19 03 31.33 +28 37.1 03 34.38 +28 47.1 2.528 2.686 -0.76 - 6.8 17.0 13.6/ 74 88.2 21.6 76/1.54 70 .03 Mar. 1 03 41.35 +29 13.1 03 44.43 +29 22.5 2.621 2.646 -0.77 - 6.4 17.0 16.3/ 76 80.6 21.7 75/1.50 68 .93