◎C/2012 F6の軌道と予報位置 　毎月の彗星軌道リストに > Orbit is very uncertain. Solution gives q = 1.5 AU or q = 6.8 AU, > if the last obs included. と入れましたが，この軌道は，ほぼ正しく決定されていました．３月30日に東京の 佐藤英貴氏より，３月29日の観測が報告され，軌道を次のように改良しました．氏 のCCD全光度は20.2等，Ｈ10＝10.1等，彗星には10"のコマがあって集光していると のことです． 　彗星は，2013年３月に９等級まで明るくなるでしょう．この頃，C/2011 L4が明る く見えているはずです．この彗星も，より増光してくれれば嬉しいのですが・・・． 中野主一 C/2012 F6 (Lemmon) T 2013 Mar. 30.80552 TT Nakano q 0.7601889 (2000.0) P Q Peri. 304.21968 +0.46495010 +0.75342183 Node 332.18611 +0.03057556 -0.53851690 e 1.0 Incl. 85.17605 -0.88480876 +0.37729973 From 28 observations 2012 Mar. 23-29. Residuals in seconds of arc 2012/ 120323 J95 0.2+ 0.2+ 120325 J95 0.4- 0.7- 120323 G96 0.6- 0.1+ 120324 H01 0.0 0.0 120325 J95 0.3- 0.1- 120323 G96 0.3+ 0.2- 120324 H01 0.2- 0.1- 120325 H21 0.6- 0.2- 120323 G96 0.4- 0.1- 120324 H01 0.2- 0.2- 120325 H21 0.2- 0.4- 120323 G96 0.0 0.2+ 120324 H01 0.1- 0.0 120325 H21 0.3- 0.1- 120323 H01 0.1+ 0.1+ 120324 H36 0.2- 0.2- 120325 H06 (3.7+ 1.8+) 120323 H01 0.1+ 0.1+ 120324 H36 0.5+ 0.6- 120325 H06 1.9+ 1.9+ 120323 H01 0.1+ 0.1+ 120324 204 0.4- 0.6+ 120329 H06 0.5+ 0.0 120323 H01 0.1+ 0.1+ 120324 204 0.1- 0.2+ 120329 H06 0.1- 0.1+ 120323 J95 0.6+ 0.1- 120324 J95 0.1+ 0.5- 120329 H06 0.4- 0.2- 2012/2013 α (2000) δ △ ｒ Daily motion Elong. Phase m1 0h TT h m ｡ , AU AU , ｡ ｡ ｡ 等 Apr. 23 09 40.64 +23 43.0 4.354 4.736 6.8/236 106.3 11.8 19.4 May 3 09 36.51 +23 04.8 4.417 4.633 5.6/218 96.0 12.5 19.4 13 09 34.03 +22 20.0 4.483 4.529 5.2/194 86.2 12.9 19.3 23 09 33.11 +21 29.5 4.547 4.424 5.6/172 76.6 12.9 19.2 June 2 09 33.64 +20 34.3 4.604 4.319 6.5/157 67.5 12.5 19.2 12 09 35.46 +19 34.9 4.650 4.212 7.6/146 58.7 11.9 19.1 22 09 38.43 +18 31.4 4.681 4.104 8.8/140 50.1 11.0 19.0 July 2 09 42.40 +17 24.1 4.694 3.995 9.9/136 41.8 9.8 18.9 12 09 47.23 +16 13.0 4.689 3.885 11.0/133 33.8 8.4 18.7 22 09 52.80 +14 57.7 4.661 3.774 12.0/131 25.9 6.8 18.6 Aug. 1 09 59.00 +13 38.2 4.612 3.661 12.9/130 18.2 5.0 18.5 11 10 05.72 +12 14.1 4.539 3.547 13.8/130 10.6 3.0 18.3 21 10 12.89 +10 44.8 4.442 3.432 14.6/130 3.1 0.9 18.1 31 10 20.42 +09 09.8 4.321 3.315 15.4/131 4.4 1.3 17.9 Sept.10 10 28.23 +07 28.4 4.177 3.197 16.2/132 11.7 3.7 17.7 20 10 36.26 +05 39.6 4.010 3.078 17.0/134 18.9 6.1 17.4 30 10 44.44 +03 42.1 3.822 2.957 17.8/136 26.2 8.6 17.1 Oct. 10 10 52.71 +01 34.4 3.614 2.834 18.8/138 33.4 11.2 16.8 20 11 01.00 -00 46.0 3.388 2.709 19.9/142 40.5 13.8 16.5 30 11 09.24 -03 21.9 3.145 2.583 21.4/145 47.7 16.5 16.1 Nov. 9 11 17.36 -06 17.7 2.890 2.455 23.3/150 54.7 19.2 15.7 19 11 25.26 -09 39.5 2.624 2.325 26.1/155 61.7 22.0 15.3 29 11 32.82 -13 36.2 2.353 2.193 30.2/160 68.5 24.7 14.8 Dec. 9 11 39.91 -18 20.7 2.081 2.059 36.3/166 75.0 27.5 14.2 19 11 46.29 -24 12.5 1.813 1.924 45.3/171 81.0 30.3 13.6 29 11 51.58 -31 39.9 1.560 1.787 58.4/176 86.1 33.3 13.0 Jan. 8 11 55.11 -41 22.2 1.331 1.648 76.0/180 89.5 36.6 12.3 18 11 54.95 -54 02.6 1.143 1.509 95.6/184 90.0 40.7 11.6 28 11 42.95 -69 55.1 1.017 1.369 108.7/189 86.3 45.9 10.9 Feb. 7 08 13.38 -86 25.5 0.971 1.232 106.6/243 78.0 51.6 10.3 17 01 08.35 -73 33.7 1.003 1.099 92.1/350 67.0 55.8 9.9 27 00 47.50 -58 20.4 1.095 0.976 75.8/354 55.5 56.8 9.6 Mar. 9 00 40.40 -45 45.2 1.219 0.871 63.8/355 45.0 53.7 9.3 19 00 35.73 -35 09.7 1.347 0.795 56.9/355 35.9 47.2 9.1 29 00 31.87 -25 43.4 1.460 0.761 53.4/356 29.0 39.5 9.1 Apr. 8 00 28.98 -16 51.0 1.546 0.777 51.5/357 25.7 34.0 9.4 18 00 27.32 -08 16.6 1.601 0.839 50.3/359 26.9 32.8 9.8 28 00 26.68 +00 06.1 1.630 0.936 49.5/360 31.6 34.3 10.3 May 8 00 26.52 +08 21.4 1.640 1.053 49.2/359 38.3 36.4 10.8 18 00 26.05 +16 33.1 1.640 1.183 49.1/357 45.8 37.8 11.3 28 00 24.36 +24 43.2 1.636 1.319 49.0/354 53.7 38.3 11.8 June 7 00 20.36 +32 50.6 1.635 1.458 48.8/349 61.6 37.8 12.2 17 00 12.54 +40 49.0 1.642 1.598 48.0/343 69.4 36.5 12.6 27 23 58.78 +48 25.8 1.663 1.736 46.5/335 76.6 34.7 13.0 July 7 23 36.16 +55 20.9 1.700 1.874 44.1/325 83.2 32.6 13.4 17 23 01.10 +61 05.3 1.756 2.010 40.9/311 88.8 30.4 13.8 27 22 11.90 +65 03.4 1.833 2.145 37.2/293 93.2 28.2 14.1 Aug. 6 21 13.42 +66 47.8 1.929 2.277 33.1/272 96.4 26.3 14.5 16 20 18.00 +66 22.1 2.043 2.408 28.9/251 98.3 24.6 14.9 26 19 35.60 +64 25.0 2.173 2.537 25.0/232 99.0 23.2 15.2 Sept. 5 19 07.71 +61 42.0 2.317 2.664 21.4/216 98.7 22.0 15.6 15 18 51.43 +58 45.8 2.472 2.789 18.3/202 97.5 20.9 15.9 25 18 43.37 +55 55.3 2.636 2.912 15.7/188 95.7 20.0 16.2 Oct. 5 18 41.00 +53 19.8 2.805 3.034 13.7/174 93.4 19.2 16.6 15 18 42.61 +51 03.9 2.979 3.154 12.2/159 90.8 18.4 16.9 25 18 47.03 +49 09.6 3.154 3.272 11.3/145 87.9 17.7 17.1 Nov. 4 18 53.48 +47 37.0 3.329 3.390 10.8/130 85.0 16.9 17.4 14 19 01.41 +46 26.1 3.503 3.505 10.6/117 82.0 16.2 17.7 24 19 10.40 +45 36.0 3.673 3.619 10.7/105 79.2 15.5 17.9 Dec. 4 19 20.16 +45 05.9 3.839 3.732 11.0/ 95 76.4 14.9 18.1 14 19 30.46 +44 55.0 3.999 3.844 11.3/ 85 73.9 14.2 18.4 24 19 41.07 +45 02.0 4.154 3.955 11.6/ 77 71.6 13.6 18.6 m1 = 9.5 + 5 log △ + 10.0 log ｒ NAKANO **** Don't distribute anyone except personal use only **** (C) Copyright 2012 Orbit.Astro.Assoc./ComputingSection write mail from CFAD0::NAKANO on 2012-04-01 08:14:29(JST).