English version Home page |
Updated on September 29, 2004 |
プロフィール
|
軌道要素Comet 128P/Shoemaker-Holt 1 ( Nucleus A ) The following improved orbital elements by Kenji Muraoka, are from 67 observations 1987 Sept. 24 to 1996 Dec. 4, perturbations by 9 Planets, Moon and 5 minor planets were taken into account. The mean residual is +/- 0.89 arc seconds. Epoch = 1997 Nov. 8.0 TT JDT = 2450760.5 T = 1997 Nov. 20.27420 +/- 0.00651 (m.e.) TT Peri. = 210.21402 +/- 0.00125 Node = 214.52736 +/- 0.00038 (2000.0) Incl. = 4.36150 +/- 0.00005 q = 3.0470294 +/- 0.0000016 AU e = 0.3212741 +/- 0.0000003 a = 4.4893375 +/- 0.0000007 AU n = 0.10361692 +/- 0.00000003 P = 9.512 +/- 0.0000023 years Comet 128P/Shoemaker-Holt 1 ( Nucleus B ) The following improved orbital elements by Kenji Muraoka, are from 277 observations 1987 Sep. 24 to 1999 Feb. 14 perturbations by 9 Plantes, Moon and 5 minor planets were taken into account. The mean residual is +/- 0.82 arc seconds. Epoch = 1997 Nov. 8.0 TT JDT = 2450760.5 T = 1997 Nov. 20.29529 +/- 0.00050 (m.e.) TT Peri. = 210.21864 +/- 0.00021 Node = 214.52738 +/- 0.00019 (2000.0) Incl. = 4.36165 +/- 0.00002 q = 3.0470326 +/- 0.0000008 AU e = 0.3212733 +/- 0.0000002 a = 4.4893363 +/- 0.0000004 AU n = 0.10361696 +/- 0.00000001 P = 9.512 +/- 0.0000012 years
|
星図 |
光度変化m1 = 1.4 + 5 logΔ + 30.0 log r [ ,-130] ( 〜1997年 7月13日) m1 = -43.9 + 5 logΔ + 118.5 log r(t - 50) [-130, 50] (1997年 7月13日〜1998年 1月 9日) m1 = -6.0 + 5 logΔ + 40.0 log r [ 50, ] (1998年 1月 9日〜 )
|
軌道要素は村岡健治氏の計算によるものです。
|