52P/Harrington-Abell (1999)

Japanese version
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Updated on June 12, 1999

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* Profile

* Pictures

* Orbital Elements

   The following improved orbital elements by Kenji Muraoka, 
  are from 318 observations 1975 to 1999, including 9 Planets, 
  Moon and 5 minor planets perturbations and non-gravitational 
  effect of style II.  The mean residual is +/- 0.71 arc seconds.

      Epoch  =  1999 Jan  = 2451200.5
          T  =  1999 Jan. 27.87697       +/- 0.00058 (m.e.) TT
       Peri. =  138.90063                +/- 0.00025
       Node  =  337.28741                +/- 0.00008   (2000.0)
       Incl. =   10.21847                +/- 0.00001
          q  =    1.7559831              +/- 0.0000015 AU
          e  =    0.5429107              +/- 0.0000004
          a  =    3.8416632              +/- 0.0000013 AU
          n  =    0.13089563             +/- 0.00000006
          P  =    7.530                  +/- 0.0000037  years
         A1  =   +0.320                  +/- 0.021
         A2  =   +0.00563                +/- 0.00039

* Finding Charts

* Magnitudes Graph

        m1 = 19.5 + 5 log d - 25   log r  [    ,-100]  (             - 1998 Oct. 19)
        m1 =  7.4 + 5 log d + 15.0 log r  [-100,   0]  (1998 Oct. 19 - 1999 Jan. 27)
        m1 =  5.5 + 5 log d + 25.0 log r  [   0,  55]  (1999 Jan. 27 - 1999 Mar. 23)
        m1 =  8.0 + 5 log d + 25   log r  [  55,    ]  (1999 Mar. 23 -             )

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The orbital elements are calculated by Kenji Muraoka.
The charts are made with StellaNavigator Ver.2.0 for Windows (AstroArts / ASCII).
The magnitudes graphs are made with Comet for Windows.

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Copyright(C) Seiichi Yoshida (comet@aerith.net). All rights reserved.