111P/Helin-Roman-Crockett Orbit by T. Kobayashi NK 3640 (2018) Last obs. 2012 12 21 (291)
Equinox 2000.0 T/TT q (AU) e P Peri. Node Inc. Tail(AU) Epoch 2029 Dec. 7.75410 3.7086026 0.1070472 8.46 1.66013 89.73116 4.22594 0.200 2026 June 9.0 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 , ¡ ¡ ¡ ¡ ¡ ¡ 2025 Dec. 31 18 45.73 -23 44.4 18 48.77 -23 41.0 5.572 4.589 -0.34 0.0 21.8 15.5/ 86 2.1 0.4 106/0.02 130 .84 2026 Jan. 10 18 56.96 -23 34.2 18 59.99 -23 30.0 5.565 4.587 -0.34 - 0.1 21.8 15.4/ 85 5.7 1.2 256/0.04 92 .56 20 19 08.09 -23 21.3 19 11.11 -23 16.3 5.538 4.586 -0.34 - 0.2 21.8 15.1/ 84 13.3 2.8 259/0.10 27 .01 30 19 19.03 -23 06.0 19 22.03 -23 00.3 5.490 4.584 -0.34 - 0.3 21.8 14.8/ 84 20.9 4.4 260/0.15 161 .89 Feb. 9 19 29.66 -22 48.9 19 32.65 -22 42.5 5.423 4.581 -0.35 - 0.4 21.8 14.3/ 83 28.6 5.9 259/0.21 67 .55 19 19 39.90 -22 30.4 19 42.88 -22 23.3 5.338 4.579 -0.35 - 0.5 21.7 13.6/ 82 36.3 7.3 259/0.26 55 .03 Mar. 1 19 49.63 -22 11.1 19 52.59 -22 03.3 5.236 4.577 -0.36 - 0.6 21.7 12.8/ 81 44.1 8.7 258/0.32 167 .93 11 19 58.75 -21 51.7 20 01.70 -21 43.4 5.118 4.574 -0.36 - 0.7 21.6 11.9/ 81 52.0 9.9 257/0.37 43 .54 21 20 07.16 -21 33.0 20 10.09 -21 24.1 4.988 4.571 -0.37 - 0.8 21.6 10.7/ 81 60.0 10.9 257/0.42 86 .05 31 20 14.73 -21 15.8 20 17.65 -21 06.5 4.846 4.569 -0.38 - 0.8 21.5 9.4/ 81 68.1 11.7 256/0.46 137 .95 Apr. 10 20 21.37 -21 01.0 20 24.28 -20 51.2 4.696 4.566 -0.39 - 0.9 21.5 7.9/ 82 76.4 12.3 256/0.50 16 .52 20 20 26.95 -20 49.3 20 29.85 -20 39.2 4.541 4.562 -0.40 - 1.0 21.4 6.2/ 83 84.9 12.7 256/0.53 120 .09 30 20 31.35 -20 41.7 20 34.24 -20 31.3 4.384 4.559 -0.41 - 1.1 21.3 4.4/ 86 93.6 12.7 256/0.55 106 .97 May 10 20 34.46 -20 38.8 20 37.34 -20 28.3 4.229 4.556 -0.43 - 1.2 21.2 2.4/ 96 102.5 12.5 256/0.56 14 .49 20 20 36.16 -20 41.3 20 39.05 -20 30.7 4.078 4.552 -0.45 - 1.2 21.1 0.9/158 111.8 11.9 256/0.55 157 .15 30 20 36.40 -20 49.4 20 39.28 -20 38.8 3.938 4.548 -0.46 - 1.3 21.1 2.2/232 121.4 11.0 257/0.53 73 .98 June 9 20 35.13 -21 03.0 20 38.02 -20 52.5 3.810 4.545 -0.48 - 1.3 21.0 4.3/244 131.3 9.7 257/0.48 49 .44 19 20 32.38 -21 21.7 20 35.28 -21 11.3 3.701 4.541 -0.50 - 1.3 20.9 6.1/248 141.5 8.0 259/0.41 165 .20 29 20 28.30 -21 44.4 20 31.21 -21 34.2 3.614 4.537 -0.52 - 1.3 20.9 7.6/250 152.0 6.0 261/0.32 39 .99 July 9 20 23.11 -22 09.5 20 26.04 -21 59.6 3.551 4.532 -0.53 - 1.3 20.8 8.7/252 162.7 3.8 265/0.20 88 .37 19 20 17.15 -22 35.3 20 20.09 -22 25.8 3.517 4.528 -0.54 - 1.2 20.8 9.0/254 173.3 1.5 281/0.08 125 .26 29 20 10.86 -22 59.8 20 13.82 -22 50.7 3.512 4.523 -0.54 - 1.1 20.8 8.7/255 174.2 1.3 47/0.07 2 1.00 Aug. 8 20 04.72 -23 21.4 20 07.69 -23 12.7 3.536 4.519 -0.53 - 1.1 20.8 7.8/257 163.7 3.6 68/0.19 131 .29 18 19 59.19 -23 38.9 20 02.17 -23 30.5 3.589 4.514 -0.53 - 1.0 20.8 6.3/258 152.9 5.9 72/0.31 87 .30 28 19 54.69 -23 51.6 19 57.68 -23 43.4 3.667 4.509 -0.51 - 0.9 20.9 4.4/260 142.3 7.9 75/0.41 36 1.00 Sept. 7 19 51.51 -23 59.2 19 54.51 -23 51.3 3.768 4.504 -0.50 - 0.8 20.9 2.3/263 131.9 9.6 76/0.48 174 .21 17 19 49.86 -24 01.8 19 52.86 -23 54.0 3.887 4.499 -0.48 - 0.8 21.0 0.2/340 121.8 10.9 77/0.53 52 .33 27 19 49.80 -23 59.8 19 52.80 -23 52.0 4.020 4.493 -0.46 - 0.7 21.0 2.2/ 73 112.1 11.9 78/0.56 72 1.00 Oct. 7 19 51.33 -23 53.3 19 54.33 -23 45.4 4.162 4.488 -0.44 - 0.7 21.1 4.3/ 76 102.6 12.6 78/0.57 148 .15 17 19 54.38 -23 42.6 19 57.37 -23 34.5 4.311 4.482 -0.43 - 0.7 21.2 6.3/ 76 93.5 12.8 79/0.56 22 .34 27 19 58.84 -23 28.0 20 01.82 -23 19.6 4.460 4.477 -0.41 - 0.7 21.3 8.1/ 77 84.6 12.8 79/0.54 107 .99 Nov. 6 20 04.54 -23 09.4 20 07.51 -23 00.7 4.607 4.471 -0.40 - 0.8 21.3 9.7/ 77 75.9 12.4 79/0.51 114 .11 16 20 11.36 -22 47.0 20 14.31 -22 37.8 4.749 4.465 -0.39 - 0.8 21.4 11.1/ 76 67.5 11.8 78/0.47 6 .36 26 20 19.12 -22 20.8 20 22.06 -22 11.2 4.882 4.459 -0.38 - 0.9 21.4 12.3/ 76 59.3 11.0 78/0.43 140 .97 Dec. 6 20 27.68 -21 51.0 20 30.60 -21 40.8 5.004 4.453 -0.37 - 0.9 21.5 13.3/ 76 51.2 9.9 78/0.38 85 .09 16 20 36.91 -21 17.5 20 39.80 -21 06.8 5.112 4.447 -0.36 - 1.0 21.5 14.1/ 75 43.3 8.7 78/0.33 33 .38 26 20 46.66 -20 40.5 20 49.53 -20 29.4 5.204 4.440 -0.35 - 1.1 21.6 14.8/ 75 35.5 7.4 78/0.27 172 .94 2027 Jan. 5 20 56.81 -20 00.4 20 59.66 -19 48.7 5.280 4.434 -0.35 - 1.1 21.6 15.4/ 74 27.8 5.9 79/0.22 58 .07 15 21 07.25 -19 17.2 21 10.08 -19 05.0 5.337 4.427 -0.34 - 1.2 21.6 15.8/ 73 20.2 4.4 80/0.16 60 .41 25 21 17.88 -18 31.5 21 20.68 -18 18.8 5.375 4.420 -0.34 - 1.3 21.6 16.0/ 73 12.8 2.8 84/0.10 158 .91 Feb. 4 21 28.60 -17 43.6 21 31.37 -17 30.4 5.393 4.414 -0.34 - 1.4 21.6 16.1/ 72 5.7 1.3 100/0.05 34 .06 14 21 39.32 -16 54.0 21 42.07 -16 40.3 5.392 4.407 -0.34 - 1.4 21.6 16.1/ 72 3.7 0.8 202/0.03 88 .46 24 21 49.95 -16 03.2 21 52.68 -15 49.1 5.370 4.400 -0.34 - 1.5 21.6 16.0/ 71 10.2 2.3 235/0.08 130 .88 Mar. 6 22 00.43 -15 11.9 22 03.14 -14 57.3 5.329 4.392 -0.34 - 1.6 21.6 15.7/ 71 17.4 3.9 241/0.14 10 .05