C/2025 B2 (Borisov) Orbit by S. Nakano NK 5524 (2026) Observed in 1st half of 2026
Equinox 2000.0 T/TT q (AU) e P Peri. Node Inc. Tail(AU) Epoch 2026 Sep. 11.67255 8.2391610 1.0021242 78.85349 84.87145 91.74659 0.200 2026 June 9.0 m1 = 6.5 + 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 , ¡ ¡ ¡ ¡ ¡ ¡ 2025 Dec. 31 21 33.37 +83 20.1 21 30.09 +83 33.4 8.018 8.379 +1.39 - 6.7 18.4 7.1/157 108.3 6.4 41/0.16 67 .84 2026 Jan. 10 21 46.02 +82 12.9 21 43.99 +82 26.8 8.047 8.369 +1.36 - 5.7 18.4 6.4/152 105.8 6.5 34/0.16 103 .56 20 21 58.73 +81 15.1 21 57.57 +81 29.5 8.087 8.358 +1.32 - 4.7 18.4 5.6/145 102.7 6.6 27/0.16 101 .01 30 22 11.32 +80 27.5 22 10.81 +80 42.4 8.136 8.348 +1.29 - 3.6 18.4 4.9/137 99.1 6.7 20/0.16 66 .89 Feb. 9 22 23.71 +79 50.7 22 23.70 +80 06.0 8.191 8.339 +1.25 - 2.5 18.4 4.2/126 95.2 6.8 13/0.16 115 .55 19 22 35.84 +79 24.9 22 36.24 +79 40.5 8.250 8.330 +1.21 - 1.4 18.4 3.6/112 91.2 6.8 7/0.16 84 .03 Mar. 1 22 47.63 +79 10.2 22 48.37 +79 26.1 8.310 8.321 +1.17 - 0.4 18.5 3.2/ 95 87.2 6.8 1/0.16 79 .93 11 22 58.99 +79 06.4 23 00.02 +79 22.5 8.369 8.313 +1.11 + 0.7 18.5 3.1/ 76 83.4 6.8 354/0.16 118 .54 21 23 09.85 +79 13.2 23 11.14 +79 29.6 8.425 8.305 +1.04 + 1.7 18.5 3.3/ 57 79.7 6.8 348/0.16 68 .05 31 23 20.05 +79 30.3 23 21.58 +79 46.8 8.476 8.298 +0.96 + 2.7 18.5 3.7/ 42 76.4 6.7 341/0.15 95 .95 Apr. 10 23 29.43 +79 56.9 23 31.16 +80 13.5 8.520 8.291 +0.85 + 3.6 18.5 4.1/ 29 73.5 6.7 334/0.15 112 .52 20 23 37.71 +80 32.6 23 39.64 +80 49.3 8.557 8.285 +0.69 + 4.4 18.5 4.7/ 19 71.0 6.6 326/0.15 61 .09 30 23 44.44 +81 16.7 23 46.54 +81 33.4 8.585 8.279 +0.46 + 5.2 18.5 5.2/ 10 69.0 6.5 318/0.15 109 .97 May 10 23 48.97 +82 08.2 23 51.17 +82 24.9 8.604 8.273 +0.11 + 5.8 18.5 5.8/ 2 67.6 6.5 309/0.15 100 .49 20 23 50.08 +83 06.2 23 52.28 +83 22.9 8.614 8.268 -0.48 + 6.3 18.5 6.3/354 66.8 6.5 299/0.15 65 .15 30 23 45.54 +84 09.2 23 47.44 +84 25.9 8.615 8.263 -1.57 + 6.6 18.5 6.9/345 66.5 6.5 288/0.15 117 .98 June 9 23 30.93 +85 14.9 23 31.78 +85 31.5 8.607 8.259 -3.74 + 6.3 18.5 7.4/333 66.7 6.5 274/0.15 86 .44 19 22 56.79 +86 18.6 22 54.38 +86 34.6 8.591 8.255 -8.01 + 4.8 18.5 7.9/317 67.4 6.5 255/0.15 78 .20 29 21 45.10 +87 08.5 21 34.31 +87 22.2 8.568 8.251 -12.43 + 0.6 18.5 8.3/290 68.6 6.6 225/0.15 117 .99 July 9 19 49.81 +87 21.3 19 30.02 +87 28.3 8.539 8.248 -9.95 - 4.6 18.5 8.7/252 70.1 6.7 185/0.15 74 .37 19 18 07.38 +86 42.7 17 50.56 +86 42.7 8.505 8.246 -4.97 - 7.6 18.5 9.1/220 71.9 6.7 150/0.15 91 .26 29 17 11.98 +85 30.4 17 00.86 +85 26.5 8.467 8.244 -2.16 - 9.0 18.5 9.5/201 73.9 6.8 128/0.16 110 1.00 Aug. 8 16 46.72 +84 01.9 16 39.30 +83 56.4 8.427 8.242 -0.77 - 9.7 18.5 9.8/189 76.1 6.9 114/0.16 69 .29 18 16 36.76 +82 25.5 16 31.58 +82 19.4 8.386 8.240 -0.04 -10.1 18.4 10.1/181 78.3 6.9 103/0.16 100 .30 28 16 34.93 +80 44.9 16 31.17 +80 38.7 8.346 8.240 +0.38 -10.2 18.4 10.3/174 80.5 6.9 93/0.16 100 1.00 Sept. 7 16 37.75 +79 02.4 16 34.96 +78 56.4 8.308 8.239 +0.64 -10.3 18.4 10.4/168 82.6 7.0 85/0.16 73 .21 17 16 43.46 +77 19.4 16 41.37 +77 13.8 8.274 8.239 +0.81 -10.1 18.4 10.5/163 84.5 7.0 77/0.16 103 .33 27 16 51.06 +75 37.5 16 49.49 +75 32.5 8.244 8.240 +0.93 - 9.9 18.4 10.5/159 86.3 7.0 69/0.16 90 1.00 Oct. 7 16 59.91 +73 57.9 16 58.74 +73 53.6 8.219 8.241 +1.00 - 9.5 18.4 10.5/154 87.7 7.0 62/0.16 82 .15 17 17 09.63 +72 21.9 17 08.78 +72 18.2 8.201 8.242 +1.06 - 9.0 18.4 10.3/150 88.9 6.9 55/0.16 101 .34 27 17 19.93 +70 50.7 17 19.34 +70 47.8 8.189 8.244 +1.09 - 8.5 18.4 10.1/145 89.7 6.9 47/0.16 84 .99 Nov. 6 17 30.59 +69 25.4 17 30.21 +69 23.3 8.184 8.246 +1.10 - 7.7 18.4 9.8/141 90.1 6.9 40/0.16 91 .11 16 17 41.45 +68 07.2 17 41.25 +68 05.8 8.185 8.248 +1.11 - 6.9 18.4 9.4/136 90.2 6.9 32/0.16 94 .36 26 17 52.37 +66 57.0 17 52.32 +66 56.4 8.192 8.251 +1.10 - 6.1 18.4 8.9/131 90.0 6.9 25/0.16 85 .97 Dec. 6 18 03.21 +65 55.5 18 03.28 +65 55.7 8.205 8.255 +1.08 - 5.1 18.4 8.4/126 89.5 6.9 17/0.16 95 .09 16 18 13.86 +65 03.6 18 14.04 +65 04.6 8.222 8.259 +1.04 - 4.1 18.4 7.8/121 88.7 6.8 9/0.16 87 .38 26 18 24.20 +64 21.6 18 24.46 +64 23.4 8.243 8.263 +1.00 - 3.1 18.4 7.2/114 87.8 6.8 2/0.16 91 .94 2027 Jan. 5 18 34.12 +63 49.9 18 34.44 +63 52.4 8.266 8.268 +0.94 - 2.1 18.4 6.6/107 86.7 6.8 354/0.16 94 .07 15 18 43.49 +63 28.6 18 43.86 +63 31.7 8.290 8.273 +0.87 - 1.1 18.4 6.0/ 99 85.6 6.8 346/0.16 82 .41 25 18 52.20 +63 17.4 18 52.60 +63 21.2 8.314 8.279 +0.79 - 0.1 18.4 5.3/ 90 84.6 6.8 338/0.16 98 .91 Feb. 4 19 00.11 +63 16.1 19 00.53 +63 20.4 8.337 8.285 +0.70 + 0.8 18.5 4.8/ 79 83.6 6.8 329/0.16 89 .06 14 19 07.09 +63 24.1 19 07.52 +63 28.9 8.358 8.291 +0.59 + 1.7 18.5 4.3/ 66 82.7 6.8 321/0.16 82 .46 24 19 12.97 +63 40.6 19 13.39 +63 45.8 8.377 8.298 +0.46 + 2.4 18.5 3.9/ 51 82.1 6.8 312/0.16 102 .88 Mar. 6 19 17.61 +64 04.5 19 18.01 +64 10.1 8.392 8.306 +0.32 + 3.0 18.5 3.7/ 34 81.6 6.8 304/0.16 83 .05