117P/Helin-Roman-Alu Orbit by S. Nakano NK 4669 (2022) Observed in 1st half of 2024

Equinox 2000.0 T/TT q (AU) e P Peri. Node Inc. Tail(AU) Epoch 2022 July 10.53189 3.0464326 0.2560222 8.29 223.58546 58.81388 8.70564 0.200 2024 Mar. 31.0 m1 = 1.0 + 5 log Delta + 21.0 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 , ¡ ¡ ¡ ¡ ¡ ¡ 2023 Dec. 22 00 07.78 -06 00.5 00 10.34 -05 43.8 3.727 3.864 +0.50 + 5.8 16.2 9.4/ 52 90.6 14.7 66/0.74 29 .74 2024 Jan. 1 00 12.76 -05 02.8 00 15.32 -04 46.1 3.900 3.887 +0.61 + 6.3 16.3 11.1/ 56 81.9 14.5 67/0.70 154 .78 11 00 18.86 -04 00.1 00 21.41 -03 43.4 4.071 3.909 +0.71 + 6.7 16.5 12.5/ 58 73.6 14.0 68/0.65 80 .01 21 00 25.91 -02 53.5 00 28.47 -02 36.9 4.236 3.931 +0.79 + 6.9 16.6 13.7/ 59 65.5 13.2 69/0.59 60 .79 31 00 33.76 -01 43.9 00 36.32 -01 27.4 4.392 3.954 +0.85 + 7.2 16.8 14.6/ 61 57.6 12.2 70/0.52 176 .77 Feb. 10 00 42.28 -00 32.2 00 44.84 -00 15.8 4.538 3.976 +0.91 + 7.3 16.9 15.4/ 62 50.0 11.0 71/0.46 49 .00 20 00 51.35 +00 40.7 00 53.92 +00 57.0 4.671 3.998 +0.95 + 7.3 17.0 16.0/ 63 42.5 9.6 72/0.39 88 .82 Mar. 1 01 00.86 +01 54.2 01 03.43 +02 10.3 4.790 4.020 +0.99 + 7.3 17.1 16.5/ 64 35.1 8.1 73/0.33 155 .75 11 01 10.72 +03 07.6 01 13.30 +03 23.5 4.894 4.043 +1.01 + 7.2 17.2 16.8/ 64 27.9 6.6 75/0.26 19 .01 21 01 20.84 +04 20.3 01 23.43 +04 35.9 4.980 4.064 +1.03 + 7.1 17.3 17.0/ 65 20.8 5.0 78/0.19 113 .84 31 01 31.14 +05 31.6 01 33.75 +05 47.0 5.049 4.086 +1.04 + 6.9 17.4 17.0/ 66 13.9 3.4 84/0.13 129 .72 Apr. 10 01 41.56 +06 41.1 01 44.18 +06 56.2 5.100 4.108 +1.05 + 6.7 17.4 17.0/ 67 7.3 1.8 98/0.07 12 .02 20 01 52.03 +07 48.4 01 54.66 +08 03.1 5.132 4.130 +1.05 + 6.4 17.5 16.8/ 67 3.5 0.9 169/0.03 137 .86 30 02 02.47 +08 52.9 02 05.12 +09 07.2 5.146 4.151 +1.04 + 6.1 17.5 16.5/ 68 8.2 2.0 226/0.07 101 .66 May 10 02 12.82 +09 54.4 02 15.49 +10 08.3 5.141 4.173 +1.02 + 5.8 17.6 16.1/ 69 14.8 3.5 238/0.13 40 .05 20 02 23.01 +10 52.4 02 25.70 +11 05.9 5.118 4.194 +1.00 + 5.4 17.6 15.6/ 70 21.6 5.1 243/0.19 160 .88 30 02 32.95 +11 46.7 02 35.66 +11 59.7 5.077 4.215 +0.96 + 5.0 17.6 15.0/ 70 28.6 6.6 246/0.25 71 .58 June 9 02 42.58 +12 37.0 02 45.31 +12 49.6 5.020 4.236 +0.92 + 4.6 17.7 14.2/ 71 35.6 8.0 248/0.31 67 .07 19 02 51.80 +13 23.2 02 54.54 +13 35.4 4.947 4.257 +0.87 + 4.1 17.7 13.4/ 72 42.7 9.3 250/0.36 172 .90 29 03 00.50 +14 05.0 03 03.27 +14 16.8 4.859 4.277 +0.81 + 3.7 17.7 12.3/ 72 50.0 10.5 251/0.42 39 .49 July 9 03 08.59 +14 42.4 03 11.37 +14 53.7 4.758 4.298 +0.74 + 3.2 17.7 11.1/ 73 57.5 11.5 253/0.46 93 .09 19 03 15.93 +15 15.2 03 18.73 +15 26.1 4.645 4.318 +0.65 + 2.8 17.7 9.8/ 73 65.2 12.3 254/0.51 146 .92 29 03 22.40 +15 43.5 03 25.21 +15 54.0 4.524 4.338 +0.55 + 2.3 17.7 8.2/ 73 73.1 12.9 255/0.55 8 .40 Aug. 8 03 27.85 +16 07.0 03 30.67 +16 17.2 4.395 4.358 +0.43 + 1.9 17.6 6.4/ 73 81.3 13.3 256/0.58 121 .11 18 03 32.13 +16 25.8 03 34.96 +16 35.8 4.263 4.378 +0.30 + 1.4 17.6 4.5/ 72 89.8 13.4 256/0.60 114 .95 28 03 35.11 +16 40.0 03 37.94 +16 49.8 4.130 4.397 +0.15 + 0.9 17.6 2.4/ 67 98.7 13.1 257/0.61 30 .33 Sept. 7 03 36.63 +16 49.4 03 39.47 +16 59.1 4.001 4.416 0.00 + 0.5 17.6 0.5/356 107.9 12.5 257/0.60 150 .13 17 03 36.61 +16 54.0 03 39.45 +17 03.7 3.879 4.436 -0.16 0.0 17.5 2.3/270 117.6 11.6 258/0.58 78 .98 27 03 35.01 +16 54.0 03 37.85 +17 03.8 3.769 4.455 -0.32 - 0.4 17.5 4.6/265 127.8 10.2 258/0.53 64 .28 Oct. 7 03 31.85 +16 49.5 03 34.68 +16 59.5 3.677 4.473 -0.46 - 0.8 17.5 6.6/263 138.4 8.5 259/0.45 172 .15 17 03 27.29 +16 40.8 03 30.11 +16 51.1 3.606 4.492 -0.57 - 1.2 17.5 8.3/262 149.3 6.5 259/0.36 38 1.00 27 03 21.60 +16 28.7 03 24.42 +16 39.3 3.560 4.510 -0.64 - 1.4 17.5 9.4/262 160.6 4.2 260/0.24 101 .25 Nov. 6 03 15.17 +16 14.2 03 17.98 +16 25.1 3.544 4.528 -0.67 - 1.5 17.5 9.8/261 172.1 1.7 264/0.11 137 .18 16 03 08.49 +15 58.7 03 11.29 +16 10.0 3.559 4.546 -0.64 - 1.4 17.6 9.4/261 175.7 0.9 40/0.03 8 1.00 26 03 02.06 +15 44.1 03 04.84 +15 55.8 3.606 4.564 -0.57 - 1.2 17.6 8.4/262 164.3 3.3 69/0.15 138 .24 Dec. 6 02 56.33 +15 32.1 02 59.11 +15 44.0 3.682 4.581 -0.46 - 0.8 17.7 6.7/264 152.9 5.6 72/0.26 96 .23 16 02 51.71 +15 24.2 02 54.49 +15 36.4 3.786 4.598 -0.33 - 0.2 17.8 4.7/267 141.6 7.6 72/0.36 47 .99 26 02 48.45 +15 21.7 02 51.22 +15 34.0 3.914 4.615 -0.18 + 0.4 17.9 2.6/278 130.7 9.3 73/0.42 172 .23 2025 Jan. 5 02 46.68 +15 25.2 02 49.45 +15 37.6 4.060 4.632 -0.02 + 1.0 18.0 1.0/341 120.1 10.6 73/0.47 56 .28 15 02 46.45 +15 34.9 02 49.22 +15 47.4 4.221 4.648 +0.13 + 1.6 18.1 2.4/ 49 109.9 11.5 73/0.49 83 .99 25 02 47.70 +15 50.5 02 50.48 +16 02.9 4.390 4.665 +0.27 + 2.1 18.3 4.4/ 61 100.1 12.0 73/0.49 155 .22 Feb. 4 02 50.35 +16 11.6 02 53.13 +16 23.8 4.565 4.681 +0.39 + 2.5 18.4 6.2/ 66 90.6 12.2 73/0.48 18 .35 14 02 54.26 +16 37.2 02 57.06 +16 49.3 4.739 4.696 +0.51 + 2.9 18.5 7.8/ 68 81.5 12.0 74/0.45 115 .98 24 02 59.31 +17 06.7 03 02.11 +17 18.5 4.910 4.712 +0.61 + 3.2 18.6 9.2/ 69 72.7 11.6 74/0.42 125 .19 Mar. 6 03 05.34 +17 39.2 03 08.16 +17 50.6 5.073 4.727 +0.69 + 3.4 18.7 10.4/ 71 64.2 10.9 75/0.38 17 .42 16 03 12.24 +18 13.8 03 15.07 +18 24.9 5.226 4.742 +0.76 + 3.6 18.8 11.4/ 72 56.0 10.0 75/0.33 143 .97 26 03 19.86 +18 49.7 03 22.71 +19 00.4 5.367 4.757 +0.83 + 3.6 18.9 12.2/ 73 48.0 9.0 75/0.28 95 .16

Back to Observable comets Page