C/2025 R1 (ATLAS) Orbit by S. Nakano NK 5528 (2026) Observed in 2nd half of 2025
Equinox 2000.0 T/TT q (AU) e P Peri. Node Inc. Tail(AU) Epoch 2025 Nov. 23.34189 1.9752176 0.9881998 77.55372 60.39941 110.02527 0.200 2026 June 9.0 m1 = 12.5 + 5 log Delta + 10.0 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 19 06.06 +27 04.9 19 08.08 +27 09.7 2.501 2.027 +0.53 -11.7 17.6 13.7/148 50.7 22.1 8/1.60 104 .84 2026 Jan. 10 19 11.33 +25 07.9 19 13.39 +25 13.0 2.593 2.058 +0.48 - 8.4 17.7 10.7/142 47.3 20.6 357/1.45 101 .56 20 19 16.06 +23 43.0 19 18.16 +23 48.5 2.661 2.095 +0.40 - 5.8 17.8 7.9/136 45.6 19.6 344/1.35 50 .01 30 19 20.01 +22 45.2 19 22.14 +22 51.0 2.704 2.138 +0.30 - 3.5 18.0 5.4/130 45.8 19.3 331/1.31 125 .89 Feb. 9 19 22.97 +22 10.0 19 25.10 +22 16.0 2.720 2.186 +0.17 - 1.6 18.1 2.8/124 48.0 19.6 318/1.32 82 .55 19 19 24.66 +21 54.1 19 26.81 +22 00.2 2.710 2.239 +0.01 0.0 18.2 0.1/ 74 51.8 20.3 306/1.37 62 .03 Mar. 1 19 24.76 +21 54.5 19 26.91 +22 00.6 2.677 2.297 -0.19 + 1.4 18.2 2.9/298 57.2 21.3 296/1.45 133 .93 11 19 22.90 +22 08.1 19 25.04 +22 14.1 2.622 2.358 -0.43 + 2.4 18.3 6.4/292 63.8 22.2 286/1.54 62 .54 21 19 18.62 +22 32.0 19 20.75 +22 37.7 2.549 2.423 -0.72 + 2.9 18.4 10.4/287 71.4 22.9 278/1.63 87 .05 31 19 11.41 +23 01.8 19 13.52 +23 07.0 2.464 2.492 -1.07 + 2.9 18.4 15.0/282 79.9 23.2 270/1.71 117 .95 Apr. 10 19 00.73 +23 32.0 19 02.82 +23 36.4 2.372 2.563 -1.46 + 2.2 18.5 20.2/277 89.2 23.0 262/1.75 50 .52 20 18 46.11 +23 55.0 18 48.19 +23 58.4 2.283 2.636 -1.88 + 0.4 18.5 25.8/272 99.1 22.1 253/1.75 116 .09 30 18 27.32 +24 00.4 18 29.39 +24 02.5 2.204 2.711 -2.26 - 2.5 18.5 31.2/267 109.5 20.5 243/1.68 86 .97 May 10 18 04.67 +23 36.9 18 06.75 +23 37.3 2.147 2.789 -2.55 - 6.5 18.6 35.8/261 119.7 18.3 231/1.54 64 .49 20 17 39.16 +22 34.1 17 41.26 +22 32.6 2.120 2.868 -2.66 -10.9 18.7 38.6/255 129.1 15.9 216/1.36 127 .15 30 17 12.56 +20 47.1 17 14.71 +20 43.7 2.134 2.948 -2.56 -14.9 18.8 39.1/249 136.0 13.8 196/1.18 52 .98 June 9 16 46.93 +18 20.3 16 49.14 +18 15.1 2.192 3.029 -2.28 -17.6 19.0 37.2/243 138.6 12.8 174/1.06 102 .44 19 16 24.02 +15 25.6 16 26.31 +15 18.9 2.296 3.111 -1.90 -18.9 19.2 33.6/236 136.4 13.0 152/1.04 98 .20 29 16 04.92 +12 18.0 16 07.27 +12 10.0 2.442 3.195 -1.50 -18.8 19.5 29.0/230 130.2 14.1 135/1.06 46 .99 July 9 15 49.91 +09 10.4 15 52.32 +09 01.5 2.624 3.278 -1.11 -18.0 19.8 24.4/223 122.0 15.2 124/1.07 141 .37 19 15 38.78 +06 11.3 15 41.25 +06 01.7 2.835 3.363 -0.76 -16.7 20.0 20.2/214 112.9 16.2 116/1.05 59 .26 29 15 31.10 +03 24.7 15 33.61 +03 14.7 3.065 3.447 -0.47 -15.3 20.3 16.9/205 103.5 16.6 110/1.01 71 1.00 Aug. 8 15 26.31 +00 52.1 15 28.86 +00 41.8 3.309 3.532 -0.24 -13.9 20.6 14.4/194 94.2 16.6 106/0.94 148 .29 18 15 23.92 -01 27.1 15 26.50 -01 37.6 3.560 3.618 -0.04 -12.7 20.8 12.7/183 85.1 16.2 103/0.85 28 .30 28 15 23.49 -03 33.9 15 26.10 -03 44.4 3.812 3.703 +0.12 -11.6 21.1 11.7/171 76.2 15.4 101/0.76 102 1.00 Sept. 7 15 24.63 -05 29.8 15 27.28 -05 40.2 4.059 3.789 +0.24 -10.6 21.3 11.2/161 67.5 14.2 99/0.66 120 .21 17 15 27.05 -07 15.9 15 29.73 -07 26.2 4.298 3.875 +0.35 - 9.7 21.5 11.0/152 58.9 12.8 97/0.57 20 .33 27 15 30.49 -08 53.6 15 33.19 -09 03.7 4.524 3.960 +0.43 - 9.0 21.8 11.0/145 50.4 11.2 96/0.47 132 1.00 Oct. 7 15 34.72 -10 23.8 15 37.45 -10 33.6 4.734 4.046 +0.49 - 8.3 21.9 11.0/139 42.0 9.5 94/0.38 87 .15 17 15 39.57 -11 47.4 15 42.33 -11 56.9 4.925 4.132 +0.53 - 7.7 22.1 11.0/135 33.6 7.7 92/0.30 41 .34 27 15 44.87 -13 05.1 15 47.65 -13 14.3 5.095 4.217 +0.56 - 7.2 22.3 10.9/132 25.3 5.8 88/0.22 162 .99 Nov. 6 15 50.46 -14 17.5 15 53.27 -14 26.3 5.241 4.303 +0.58 - 6.7 22.4 10.7/129 17.0 3.9 83/0.14 55 .11 16 15 56.22 -15 25.2 15 59.04 -15 33.7 5.362 4.388 +0.58 - 6.3 22.6 10.5/127 9.0 2.0 69/0.07 66 .36 26 16 01.99 -16 28.5 16 04.84 -16 36.7 5.457 4.474 +0.57 - 5.9 22.7 10.1/126 4.2 0.9 357/0.03 158 .97 Dec. 6 16 07.65 -17 28.1 16 10.53 -17 35.9 5.525 4.559 +0.54 - 5.6 22.8 9.6/126 10.1 2.2 300/0.08 26 .09 16 16 13.07 -18 24.3 16 15.96 -18 31.8 5.567 4.643 +0.50 - 5.3 22.9 8.9/127 18.4 3.8 288/0.13 94 .38 26 16 18.08 -19 17.6 16 21.00 -19 24.7 5.582 4.728 +0.45 - 5.0 23.0 8.1/129 27.2 5.5 284/0.19 125 .94 2027 Jan. 5 16 22.57 -20 08.3 16 25.50 -20 15.1 5.571 4.812 +0.38 - 4.8 23.1 7.2/132 36.1 6.9 281/0.24 8 .07 15 16 26.36 -20 56.8 16 29.31 -21 03.4 5.538 4.897 +0.30 - 4.7 23.1 6.2/139 45.3 8.2 280/0.29 125 .41 25 16 29.29 -21 43.6 16 32.26 -21 49.9 5.484 4.980 +0.19 - 4.5 23.2 5.3/149 54.7 9.3 279/0.33 91 .91 Feb. 4 16 31.21 -22 28.9 16 34.20 -22 35.1 5.413 5.064 +0.08 - 4.4 23.2 4.5/167 64.3 10.1 278/0.36 35 .06 14 16 31.95 -23 12.9 16 34.96 -23 19.1 5.329 5.148 -0.06 - 4.3 23.2 4.4/191 74.1 10.6 278/0.38 160 .46 24 16 31.36 -23 55.7 16 34.38 -24 01.9 5.236 5.231 -0.21 - 4.2 23.3 5.0/214 84.2 10.8 278/0.40 56 .88 Mar. 6 16 29.29 -24 37.1 16 32.32 -24 43.4 5.141 5.314 -0.36 - 4.0 23.3 6.3/231 94.6 10.7 279/0.40 68 .05