C/2021 K2 (MASTER) Orbit by S. Nakano unpublished (2021) Observed in 2nd half of 2021
Equinox 2000.0 T/TT q (AU) e P Peri. Node Inc. Tail(AU) Epoch 2021 Sep. 9.43043 5.4671465 1.0005091 343.35494 282.24902 100.84111 0.200 2022 Aug. 9.0 m1 = 8.5 + 5 log Delta + 8.0 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 , ¡ ¡ ¡ ¡ ¡ ¡ 2022 Jan. 1 18 53.37 -26 31.4 18 56.47 -26 27.5 6.510 5.530 +0.56 + 6.1 18.5 9.8/ 52 4.4 0.8 139/0.02 28 .05 11 18 59.04 -25 30.7 19 02.11 -25 26.4 6.517 5.542 +0.54 + 6.1 18.5 9.6/ 51 7.0 1.2 241/0.04 110 .62 21 19 04.49 -24 30.1 19 07.54 -24 25.3 6.497 5.554 +0.51 + 6.1 18.5 9.3/ 49 15.4 2.7 257/0.08 130 .91 31 19 09.61 -23 29.1 19 12.64 -23 24.0 6.452 5.568 +0.46 + 6.2 18.5 8.9/ 46 24.2 4.2 261/0.12 8 .02 Feb. 10 19 14.27 -22 27.5 19 17.27 -22 22.1 6.383 5.582 +0.40 + 6.3 18.5 8.4/ 42 33.1 5.5 262/0.17 139 .63 20 19 18.34 -21 25.0 19 21.31 -21 19.3 6.291 5.597 +0.33 + 6.4 18.5 7.9/ 36 42.1 6.8 263/0.21 98 .88 Mar. 2 19 21.69 -20 21.5 19 24.63 -20 15.6 6.180 5.614 +0.25 + 6.5 18.4 7.4/ 28 51.3 7.9 263/0.25 42 .01 12 19 24.19 -19 16.8 19 27.11 -19 10.7 6.052 5.631 +0.15 + 6.6 18.4 6.9/ 18 60.6 8.8 263/0.28 166 .64 22 19 25.72 -18 10.9 19 28.62 -18 04.7 5.911 5.649 +0.04 + 6.7 18.4 6.8/ 5 70.0 9.5 263/0.31 63 .84 Apr. 1 19 26.17 -17 03.6 19 29.04 -16 57.3 5.761 5.667 -0.08 + 6.9 18.3 6.9/351 79.7 10.0 262/0.33 77 .00 11 19 25.40 -15 54.9 19 28.26 -15 48.8 5.607 5.687 -0.21 + 7.0 18.3 7.6/337 89.5 10.1 261/0.35 158 .66 21 19 23.36 -14 45.1 19 26.19 -14 39.1 5.455 5.707 -0.34 + 7.1 18.2 8.6/325 99.5 10.0 260/0.35 26 .77 May 1 19 19.96 -13 34.2 19 22.77 -13 28.4 5.309 5.729 -0.48 + 7.1 18.2 10.0/315 109.8 9.5 259/0.34 112 .00 11 19 15.20 -12 22.7 19 17.99 -12 17.3 5.177 5.751 -0.61 + 7.1 18.1 11.4/308 120.2 8.7 256/0.32 125 .69 21 19 09.14 -11 11.3 19 11.91 -11 06.2 5.063 5.774 -0.73 + 7.0 18.1 12.8/303 130.7 7.6 253/0.29 24 .70 31 19 01.91 -10 00.6 19 04.66 -09 56.0 4.973 5.798 -0.82 + 6.8 18.1 13.9/299 141.1 6.3 247/0.24 146 .00 June 10 18 53.72 -08 51.9 18 56.45 -08 47.9 4.913 5.822 -0.89 + 6.5 18.1 14.7/296 151.1 4.8 238/0.19 86 .74 20 18 44.89 -07 46.3 18 47.60 -07 43.0 4.885 5.847 -0.91 + 6.0 18.1 14.9/294 159.5 3.5 218/0.14 65 .62 30 18 35.77 -06 45.3 18 38.46 -06 42.6 4.892 5.874 -0.90 + 5.5 18.1 14.5/292 163.5 2.8 183/0.11 158 .01 July 10 18 26.75 -05 49.8 18 29.43 -05 47.8 4.934 5.900 -0.85 + 4.8 18.1 13.6/291 160.1 3.4 147/0.13 46 .80 20 18 18.22 -05 00.8 18 20.88 -04 59.4 5.011 5.928 -0.77 + 4.2 18.2 12.3/290 152.0 4.6 126/0.18 104 .56 30 18 10.50 -04 18.5 18 13.14 -04 17.6 5.120 5.956 -0.67 + 3.5 18.2 10.6/289 142.4 6.0 115/0.22 128 .02 Aug. 9 18 03.83 -03 42.9 18 06.47 -03 42.5 5.256 5.985 -0.55 + 2.9 18.3 8.7/290 132.3 7.2 108/0.26 23 .86 19 17 58.39 -03 13.3 18 01.01 -03 13.3 5.414 6.015 -0.42 + 2.4 18.4 6.7/291 122.2 8.2 103/0.29 138 .52 29 17 54.24 -02 48.9 17 56.86 -02 49.3 5.590 6.045 -0.28 + 2.0 18.5 4.7/295 112.2 8.9 99/0.31 93 .03 Sept. 8 17 51.41 -02 28.7 17 54.02 -02 29.2 5.778 6.076 -0.16 + 1.7 18.6 2.9/306 102.5 9.3 95/0.31 50 .92 18 17 49.83 -02 11.3 17 52.44 -02 11.9 5.972 6.107 -0.04 + 1.6 18.7 1.7/339 93.0 9.5 92/0.31 155 .49 28 17 49.44 -01 55.7 17 52.04 -01 56.3 6.167 6.139 +0.07 + 1.5 18.8 1.8/ 34 83.8 9.3 88/0.29 60 .05 Oct. 8 17 50.12 -01 40.6 17 52.71 -01 41.2 6.358 6.172 +0.16 + 1.6 18.8 2.9/ 57 74.8 9.0 85/0.27 84 .96 18 17 51.75 -01 25.1 17 54.34 -01 25.6 6.541 6.206 +0.25 + 1.7 18.9 4.1/ 65 66.2 8.4 80/0.25 141 .47 28 17 54.20 -01 08.1 17 56.79 -01 08.4 6.711 6.240 +0.31 + 2.0 19.0 5.1/ 68 57.9 7.8 75/0.22 32 .08 Nov. 7 17 57.36 -00 48.8 17 59.94 -00 48.9 6.867 6.274 +0.37 + 2.3 19.1 6.0/ 68 49.9 6.9 69/0.20 115 .98 17 18 01.08 -00 26.3 18 03.65 -00 26.2 7.004 6.309 +0.42 + 2.6 19.1 6.8/ 67 42.4 6.1 62/0.17 117 .46 27 18 05.25 -00 00.2 18 07.82 +00 00.3 7.120 6.345 +0.45 + 3.1 19.2 7.4/ 65 35.7 5.2 52/0.14 31 .13 Dec. 7 18 09.75 +00 30.4 18 12.30 +00 31.2 7.214 6.381 +0.47 + 3.6 19.2 7.9/ 63 30.1 4.4 39/0.12 140 .99 17 18 14.43 +01 05.8 18 16.98 +01 06.9 7.285 6.418 +0.48 + 4.1 19.3 8.2/ 60 26.3 3.9 21/0.10 91 .44 27 18 19.21 +01 46.5 18 21.74 +01 48.0 7.332 6.455 +0.47 + 4.7 19.3 8.5/ 57 25.1 3.7 1/0.10 56 .18 2023 Jan. 6 18 23.94 +02 32.8 18 26.45 +02 34.6 7.354 6.493 +0.46 + 5.2 19.3 8.6/ 52 26.9 3.9 340/0.10 150 .99 16 18 28.52 +03 24.9 18 31.02 +03 27.1 7.354 6.531 +0.43 + 5.8 19.4 8.7/ 48 31.1 4.5 323/0.12 65 .41 26 18 32.83 +04 23.1 18 35.31 +04 25.6 7.331 6.570 +0.39 + 6.4 19.4 8.7/ 42 36.8 5.2 310/0.14 85 .23 Feb. 5 18 36.75 +05 27.3 18 39.21 +05 30.0 7.288 6.609 +0.34 + 7.0 19.4 8.7/ 36 43.6 5.9 301/0.16 138 .99 15 18 40.17 +06 37.3 18 42.61 +06 40.3 7.226 6.648 +0.28 + 7.6 19.4 8.7/ 29 50.9 6.6 293/0.18 43 .36 25 18 42.98 +07 53.1 18 45.39 +07 56.3 7.150 6.688 +0.21 + 8.1 19.4 8.7/ 21 58.6 7.3 286/0.20 111 .27 Mar. 7 18 45.06 +09 14.0 18 47.45 +09 17.4 7.062 6.729 +0.12 + 8.6 19.4 8.8/ 12 66.6 7.8 280/0.21 116 1.00 17 18 46.31 +10 39.6 18 48.67 +10 43.1 6.965 6.769 +0.03 + 8.9 19.4 8.9/ 3 74.6 8.1 275/0.23 39 .29 27 18 46.64 +12 08.9 18 48.97 +12 12.4 6.865 6.811 -0.07 + 9.2 19.3 9.2/354 82.7 8.4 269/0.23 131 .30 Apr. 6 18 45.95 +13 40.7 18 48.25 +13 44.1 6.765 6.852 -0.18 + 9.3 19.3 9.6/344 90.8 8.4 263/0.24 90 1.00 16 18 44.20 +15 13.5 18 46.47 +15 16.8 6.670 6.894 -0.29 + 9.2 19.3 10.1/336 98.7 8.3 257/0.24 60 .22 26 18 41.35 +16 45.5 18 43.58 +16 48.6 6.584 6.937 -0.40 + 8.9 19.3 10.5/327 106.4 8.0 250/0.23 135 .32 May 6 18 37.40 +18 14.6 18 39.60 +18 17.4 6.512 6.979 -0.50 + 8.4 19.3 11.0/320 113.7 7.6 242/0.22 65 1.00 16 18 32.43 +19 38.5 18 34.60 +19 40.9 6.458 7.022 -0.59 + 7.6 19.3 11.3/313 120.3 7.1 232/0.21 90 .15