50P/Arend Orbit by S. Nakano NK 4721 (2022) Observed in 2nd half of 2023
Equinox 2000.0 T/TT q (AU) e P Peri. Node Inc. Tail(AU) Epoch 2024 May 12.79108 1.9223154 0.5299544 8.27 49.34917 355.17129 19.09967 0.200 2024 Mar. 31.0 m1 = 9.5 + 5 log Delta + 15.0 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 21 54.31 -15 13.8 21 57.02 -14 59.5 2.680 2.293 +1.53 +14.5 17.0 26.5/ 57 56.7 21.0 72/1.43 62 .74 2024 Jan. 1 22 09.61 -12 49.6 22 12.29 -12 34.8 2.737 2.249 +1.61 +15.2 17.0 28.1/ 58 50.8 19.8 70/1.33 174 .78 11 22 25.77 -10 18.5 22 28.41 -10 03.2 2.786 2.206 +1.69 +15.8 16.9 29.6/ 58 45.2 18.4 69/1.22 52 .01 21 22 42.67 -07 40.5 22 45.28 -07 24.7 2.827 2.166 +1.75 +16.5 16.8 30.9/ 58 39.9 16.9 67/1.10 85 .79 31 23 00.24 -04 56.1 23 02.82 -04 39.9 2.861 2.128 +1.82 +17.1 16.7 32.1/ 58 34.8 15.3 65/0.99 157 .77 Feb. 10 23 18.42 -02 05.5 23 20.99 -01 49.0 2.888 2.092 +1.88 +17.6 16.6 33.2/ 58 30.0 13.6 63/0.88 30 .00 20 23 37.21 +00 50.4 23 39.77 +01 07.1 2.908 2.060 +1.94 +18.0 16.5 34.2/ 58 25.5 11.9 60/0.76 104 .82 Mar. 1 23 56.60 +03 50.7 23 59.16 +04 07.4 2.921 2.030 +2.00 +18.3 16.4 35.1/ 58 21.2 10.2 56/0.65 141 .75 11 00 16.62 +06 54.2 00 19.19 +07 10.8 2.930 2.003 +2.07 +18.5 16.4 35.9/ 59 17.3 8.5 51/0.54 10 .01 21 00 37.31 +09 59.4 00 39.91 +10 15.9 2.933 1.980 +2.14 +18.5 16.3 36.5/ 59 13.8 6.9 44/0.44 120 .84 31 00 58.71 +13 04.7 01 01.34 +13 20.9 2.933 1.961 +2.22 +18.3 16.2 37.1/ 60 10.8 5.5 32/0.35 125 .72 Apr. 10 01 20.91 +16 08.3 01 23.58 +16 23.9 2.929 1.945 +2.31 +17.9 16.2 37.5/ 61 8.7 4.5 14/0.29 13 .02 20 01 43.94 +19 07.9 01 46.68 +19 22.9 2.923 1.933 +2.40 +17.2 16.1 37.8/ 62 8.0 4.1 351/0.26 134 .86 30 02 07.88 +22 01.2 02 10.68 +22 15.4 2.915 1.926 +2.50 +16.4 16.1 38.0/ 63 8.7 4.6 328/0.29 108 .66 May 10 02 32.76 +24 45.9 02 35.65 +24 58.9 2.906 1.922 +2.59 +15.2 16.1 38.0/ 65 10.6 5.5 313/0.36 30 .05 20 02 58.60 +27 19.1 03 01.57 +27 31.0 2.896 1.923 +2.69 +13.8 16.1 37.9/ 67 13.0 6.8 303/0.44 146 .88 30 03 25.37 +29 38.6 03 28.43 +29 48.9 2.885 1.929 +2.77 +12.2 16.1 37.7/ 69 15.6 8.1 298/0.53 89 .58 June 9 03 53.00 +31 41.9 03 56.15 +31 50.6 2.874 1.938 +2.84 +10.3 16.1 37.3/ 72 18.5 9.6 294/0.62 46 .07 19 04 21.33 +33 27.0 04 24.57 +33 33.8 2.862 1.951 +2.89 + 8.3 16.1 36.8/ 75 21.4 11.0 293/0.71 159 .90 29 04 50.16 +34 52.4 04 53.47 +34 57.3 2.848 1.969 +2.91 + 6.3 16.2 36.1/ 78 24.5 12.4 292/0.81 68 .49 July 9 05 19.23 +35 57.4 05 22.59 +36 00.2 2.834 1.990 +2.90 + 4.2 16.2 35.3/ 81 27.6 13.7 292/0.90 60 .09 19 05 48.21 +36 41.9 05 51.61 +36 42.6 2.817 2.015 +2.86 + 2.3 16.3 34.4/ 84 31.0 15.0 292/0.99 171 .92 29 06 16.79 +37 06.6 06 20.19 +37 05.3 2.798 2.043 +2.78 + 0.5 16.4 33.3/ 87 34.4 16.3 293/1.08 47 .40 Aug. 8 06 44.63 +37 13.3 06 48.02 +37 09.9 2.775 2.074 +2.68 - 1.1 16.5 32.1/ 90 38.1 17.6 294/1.17 75 .11 18 07 11.45 +37 04.0 07 14.81 +36 58.8 2.748 2.108 +2.55 - 2.4 16.6 30.7/ 93 42.0 18.8 294/1.25 162 .95 28 07 36.99 +36 41.5 07 40.31 +36 34.5 2.716 2.145 +2.40 - 3.4 16.6 29.3/ 95 46.2 19.9 295/1.34 27 .33 Sept. 7 08 01.08 +36 08.7 08 04.34 +36 00.2 2.679 2.184 +2.24 - 4.1 16.7 27.6/ 97 50.6 20.9 295/1.42 92 .13 17 08 23.54 +35 29.0 08 26.74 +35 19.1 2.636 2.225 +2.07 - 4.5 16.8 25.8/ 98 55.4 21.8 296/1.51 140 .98 27 08 44.26 +34 45.5 08 47.40 +34 34.4 2.587 2.268 +1.88 - 4.5 16.9 23.8/100 60.5 22.6 296/1.59 12 .28 Oct. 7 09 03.16 +34 01.3 09 06.24 +33 49.3 2.532 2.313 +1.69 - 4.3 17.0 21.6/100 66.0 23.3 295/1.66 111 .15 17 09 20.10 +33 19.6 09 23.13 +33 06.7 2.470 2.359 +1.48 - 3.7 17.1 19.1/100 71.9 23.7 295/1.73 114 1.00 27 09 34.98 +32 43.1 09 37.96 +32 29.6 2.403 2.407 +1.26 - 2.9 17.1 16.3/ 99 78.3 23.8 294/1.79 23 .25 Nov. 6 09 47.65 +32 14.5 09 50.59 +32 00.4 2.332 2.456 +1.02 - 1.9 17.2 13.2/ 98 85.2 23.7 292/1.83 135 .18 16 09 57.91 +31 55.9 10 00.82 +31 41.5 2.258 2.506 +0.76 - 0.7 17.3 9.8/ 94 92.6 23.2 291/1.84 85 1.00 26 10 05.55 +31 49.0 10 08.44 +31 34.3 2.184 2.556 +0.47 + 0.5 17.3 6.1/ 85 100.6 22.3 288/1.83 46 .24 Dec. 6 10 10.29 +31 54.5 10 13.17 +31 39.7 2.112 2.607 +0.16 + 1.7 17.4 2.7/ 50 109.2 20.9 285/1.77 160 .23 16 10 11.89 +32 11.8 10 14.77 +31 56.9 2.047 2.659 -0.17 + 2.7 17.4 3.4/321 118.4 19.0 281/1.66 52 .99 26 10 10.21 +32 38.4 10 13.09 +32 23.5 1.992 2.712 -0.50 + 3.2 17.5 7.0/297 128.1 16.6 276/1.48 76 .23 2025 Jan. 5 10 05.22 +33 09.8 10 08.13 +32 55.1 1.953 2.764 -0.79 + 3.0 17.6 10.4/287 138.2 13.7 268/1.25 148 .28 15 09 57.26 +33 39.4 10 00.20 +33 25.0 1.934 2.817 -1.02 + 2.1 17.7 12.9/280 148.1 10.6 256/0.98 20 .99 25 09 47.04 +34 00.0 09 50.00 +33 46.0 1.939 2.870 -1.14 + 0.6 17.8 14.2/273 156.7 7.8 235/0.71 112 .22 Feb. 4 09 35.61 +34 05.4 09 38.61 +33 51.9 1.972 2.923 -1.13 - 1.3 18.0 14.2/266 161.3 6.2 200/0.57 106 .35 14 09 24.28 +33 51.9 09 27.30 +33 38.9 2.034 2.976 -1.01 - 3.2 18.1 13.0/257 158.8 6.9 163/0.62 32 .98 24 09 14.20 +33 19.7 09 17.25 +33 07.1 2.124 3.029 -0.79 - 4.8 18.4 11.1/245 151.3 9.0 140/0.79 150 .19 Mar. 6 09 06.26 +32 31.5 09 09.31 +32 19.3 2.239 3.082 -0.54 - 6.0 18.6 9.1/229 142.0 11.4 127/0.95 63 .42 16 09 00.91 +31 31.3 09 03.95 +31 19.3 2.378 3.135 -0.27 - 6.8 18.8 7.6/207 132.4 13.6 120/1.06 66 .97 26 08 58.22 +30 23.2 09 01.24 +30 11.4 2.534 3.188 -0.02 - 7.3 19.1 7.3/182 122.9 15.2 115/1.12 167 .16