English version Home page |
Updated on March 27, 1999 |
プロフィール
|
軌道要素Comet C/1996 J1 ( Evans-Drinkwater ) Nucleus - A The following improved orbital elements, by Kenji Muraoka, are from 131 observations 1996 May 10 to 1997 May 9, perturbations by 9 Planets, Moon and 5 minor planets were taken into account. The mean residual is +/- 0.76 arc seconds. Epoch = 1996 Dec. 23.0 TT JDT = 2450440.5 T = 1996 Dec. 30.44848 +/- 0.00316 (m.e.) TT Peri. = 14.84167 +/- 0.00173 Node = 278.15627 +/- 0.00173 (2000.0) Incl. = 22.51948 +/- 0.00038 q = 1.2978503 +/- 0.0000056 AU e = 1.0010150 +/- 0.0000205 1/a = -0.0007821 +/- 0.0000158 1/AU orig. 1/a = -0.0000829 fut. 1/a = +0.0004871 Comet C/1996 J1 ( Evans-Drinkwater ) Nucleus - B The following improved orbital elements by Kenji Muraoka, are from 501 observations 1996 May 10 to 1998 Nov. 14, perturbations by 9 Planets, Moon and 5 minor planets were taken into account. The mean residual is +/- 0.68 arc seconds. Epoch = 1996 Dec. 23.0 TT JDT = 2450440.5 T = 1996 Dec. 30.41829 +/- 0.00055 (m.e.) TT Peri. = 14.84145 +/- 0.00012 Node = 278.16709 +/- 0.00011 (2000.0) Incl. = 22.51861 +/- 0.00004 q = 1.2975715 +/- 0.0000016 AU e = 1.0009079 +/- 0.0000027 1/a = -0.0006997 +/- 0.0000021 1/AU orig. 1/a = -0.000001 1/AU fut. 1/a = +0.000569 1/AU
|
星図 |
光度変化m1 = 6.5 + 5 logΔ + 10.0 log r [ , 0] ( 〜1996年12月30日) m1 = -0.2 + 5 logΔ + 27.6 log r [ 0,180] (1996年12月30日〜1997年 6月28日) m1 = 9.7 + 5 logΔ + 5.0 log r [180, ] (1997年 6月28日〜 )
|
軌道要素は村岡健治氏の計算によるものです。
|