C/2023 RS61 (PANSTARRS) Orbit by S. Nakano CBET 5539 (2025) Observed in 2nd half of 2025
Equinox 2000.0 T/TT q (AU) e P Peri. Node Inc. Tail(AU) Epoch 2028 Dec. 4.20116 7.9928730 0.3279251 41.0 119.56440 347.03685 19.94694 0.200 2026 June 9.0 m1 = 5.5 + 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 02 40.00 +36 43.9 02 43.11 +36 56.7 8.142 8.778 -0.09 - 2.0 17.6 2.3/207 127.7 5.1 88/0.12 15 .84 2026 Jan. 10 02 39.13 +36 23.4 02 42.22 +36 36.2 8.257 8.765 0.00 - 1.8 17.6 1.8/178 118.2 5.7 82/0.13 140 .56 20 02 39.18 +36 04.9 02 42.27 +36 17.7 8.386 8.752 +0.10 - 1.6 17.7 2.0/142 108.7 6.1 78/0.14 97 .01 30 02 40.17 +35 49.5 02 43.26 +36 02.2 8.525 8.739 +0.19 - 1.2 17.7 2.6/117 99.3 6.4 75/0.15 42 .89 Feb. 9 02 42.06 +35 37.6 02 45.15 +35 50.2 8.669 8.726 +0.27 - 0.8 17.7 3.4/103 90.0 6.5 72/0.15 165 .55 19 02 44.80 +35 29.7 02 47.89 +35 42.2 8.813 8.713 +0.35 - 0.4 17.7 4.3/ 95 80.9 6.4 69/0.14 63 .03 Mar. 1 02 48.32 +35 26.0 02 51.42 +35 38.3 8.953 8.700 +0.42 0.0 17.8 5.1/ 90 72.1 6.2 66/0.14 77 .93 11 02 52.53 +35 26.4 02 55.64 +35 38.5 9.086 8.687 +0.48 + 0.4 17.8 5.9/ 86 63.4 5.9 63/0.13 154 .54 21 02 57.36 +35 30.7 03 00.48 +35 42.5 9.207 8.674 +0.54 + 0.8 17.8 6.6/ 83 55.0 5.4 60/0.11 30 .05 31 03 02.72 +35 38.6 03 05.86 +35 50.2 9.313 8.662 +0.58 + 1.1 17.8 7.2/ 81 46.9 4.8 56/0.10 110 .95 Apr. 10 03 08.52 +35 49.9 03 11.68 +36 01.1 9.403 8.649 +0.62 + 1.4 17.9 7.6/ 79 39.1 4.2 51/0.09 127 .52 20 03 14.69 +36 04.1 03 17.86 +36 15.0 9.474 8.637 +0.65 + 1.6 17.9 8.0/ 78 31.9 3.5 44/0.07 14 .09 30 03 21.13 +36 20.9 03 24.33 +36 31.5 9.524 8.624 +0.67 + 1.9 17.9 8.2/ 76 25.3 2.9 34/0.06 140 .97 May 10 03 27.78 +36 40.0 03 31.00 +36 50.2 9.553 8.612 +0.68 + 2.1 17.9 8.4/ 75 20.1 2.3 17/0.05 99 .49 20 03 34.55 +37 01.0 03 37.79 +37 10.8 9.560 8.600 +0.68 + 2.2 17.9 8.4/ 74 17.4 2.0 354/0.04 44 .15 30 03 41.36 +37 23.7 03 44.63 +37 33.1 9.545 8.588 +0.68 + 2.4 17.9 8.4/ 73 18.2 2.1 328/0.04 165 .98 June 9 03 48.13 +37 47.8 03 51.42 +37 56.8 9.508 8.576 +0.67 + 2.5 17.9 8.3/ 72 22.1 2.6 308/0.05 69 .44 19 03 54.78 +38 13.0 03 58.10 +38 21.6 9.449 8.564 +0.65 + 2.6 17.8 8.0/ 71 27.9 3.2 294/0.07 76 .20 29 04 01.23 +38 39.3 04 04.57 +38 47.5 9.370 8.552 +0.62 + 2.7 17.8 7.7/ 69 34.5 3.9 286/0.08 157 .99 July 9 04 07.39 +39 06.4 04 10.75 +39 14.1 9.272 8.541 +0.58 + 2.7 17.8 7.3/ 67 41.7 4.5 280/0.10 38 .37 19 04 13.17 +39 34.2 04 16.55 +39 41.5 9.157 8.529 +0.53 + 2.8 17.8 6.7/ 65 49.3 5.2 276/0.11 107 .26 29 04 18.46 +40 02.5 04 21.88 +40 09.5 9.026 8.517 +0.47 + 2.8 17.7 6.1/ 62 57.1 5.7 272/0.12 130 1.00 Aug. 8 04 23.19 +40 31.1 04 26.62 +40 37.9 8.883 8.506 +0.41 + 2.9 17.7 5.4/ 58 65.1 6.2 269/0.14 14 .29 18 04 27.24 +41 00.0 04 30.70 +41 06.5 8.729 8.495 +0.33 + 2.9 17.6 4.7/ 52 73.3 6.6 267/0.15 137 .30 28 04 30.52 +41 28.8 04 34.00 +41 35.0 8.569 8.484 +0.24 + 2.8 17.6 3.9/ 44 81.8 6.8 264/0.15 100 1.00 Sept. 7 04 32.93 +41 57.1 04 36.43 +42 03.2 8.406 8.472 +0.15 + 2.7 17.5 3.2/ 31 90.4 6.8 261/0.16 39 .21 17 04 34.40 +42 24.5 04 37.92 +42 30.5 8.243 8.461 +0.05 + 2.6 17.5 2.6/ 11 99.1 6.7 258/0.16 162 .33 27 04 34.86 +42 50.3 04 38.39 +42 56.3 8.086 8.451 -0.06 + 2.4 17.5 2.4/345 108.1 6.5 254/0.16 67 1.00 Oct. 7 04 34.29 +43 13.8 04 37.83 +43 19.8 7.937 8.440 -0.16 + 2.0 17.4 2.7/320 117.1 6.1 250/0.15 75 .15 17 04 32.68 +43 34.1 04 36.23 +43 40.2 7.802 8.429 -0.26 + 1.6 17.4 3.2/301 126.2 5.5 244/0.14 153 .34 27 04 30.12 +43 50.2 04 33.67 +43 56.5 7.684 8.419 -0.34 + 1.1 17.3 3.8/287 135.2 4.8 237/0.12 33 .99 Nov. 6 04 26.72 +44 01.3 04 30.28 +44 07.8 7.588 8.408 -0.40 + 0.6 17.3 4.4/278 143.7 4.0 227/0.10 111 .11 16 04 22.68 +44 06.7 04 26.23 +44 13.4 7.518 8.398 -0.44 - 0.1 17.3 4.8/270 151.2 3.3 212/0.08 123 .36 26 04 18.26 +44 05.8 04 21.80 +44 12.9 7.474 8.388 -0.46 - 0.7 17.3 4.9/263 156.4 2.7 189/0.07 21 .97 Dec. 6 04 13.72 +43 58.8 04 17.25 +44 06.1 7.459 8.377 -0.44 - 1.2 17.2 4.9/256 157.4 2.6 161/0.07 146 .09 16 04 09.37 +43 46.0 04 12.88 +43 53.6 7.474 8.367 -0.39 - 1.7 17.2 4.6/248 153.7 3.0 135/0.08 89 .38 26 04 05.49 +43 28.5 04 08.99 +43 36.4 7.516 8.357 -0.32 - 2.1 17.3 4.1/239 146.9 3.7 117/0.10 55 .94 2027 Jan. 5 04 02.32 +43 07.4 04 05.80 +43 15.4 7.585 8.348 -0.23 - 2.3 17.3 3.4/228 138.6 4.5 105/0.12 162 .07 15 04 00.05 +42 44.1 04 03.51 +42 52.3 7.678 8.338 -0.13 - 2.4 17.3 2.8/210 129.5 5.2 97/0.13 55 .41 25 03 58.80 +42 20.1 04 02.24 +42 28.4 7.790 8.328 -0.02 - 2.3 17.3 2.4/185 120.2 5.9 91/0.15 92 .91 Feb. 4 03 58.62 +41 56.7 04 02.05 +42 05.0 7.917 8.319 +0.09 - 2.2 17.4 2.4/155 110.9 6.4 86/0.16 138 .06 14 03 59.52 +41 34.9 04 02.94 +41 43.2 8.055 8.310 +0.19 - 2.0 17.4 2.9/132 101.6 6.7 82/0.16 22 .46 24 04 01.48 +41 15.5 04 04.89 +41 23.6 8.199 8.300 +0.29 - 1.7 17.4 3.7/117 92.4 6.8 79/0.16 127 .88 Mar. 6 04 04.41 +40 58.9 04 07.83 +41 06.9 8.345 8.291 +0.39 - 1.4 17.5 4.6/107 83.5 6.8 76/0.16 109 .05