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IAUC 4643: 1988j

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                                                  Circular No. 4643
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Postal Address: Central Bureau for Astronomical Telegrams
Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
TWX 710-320-6842 ASTROGRAM CAM    Telephone 617-495-7244/7440/7444
MARSDEN or GREEN@CFA.BITNET    MARSDEN or GREEN@CFAPS2.SPAN


COMET MACHHOLZ (1988j)
     The following precise positions have been reported:

     1988 UT             R.A. (1950) Decl.       Observer
     Aug.  9.44479    4 59 06.42   + 0 24 22.9   Zeigler
           9.46076    4 59 12.45   + 0 24 17.4     "
           9.74939    5 01 04.32   + 0 23 06.3   McNaught
           9.75082    5 01 04.84   + 0 23 08.0     "
           9.75264    5 01 05.47   + 0 23 06.7     "
           9.82911    5 01 35.24   + 0 22 43.8     "
          10.45590    5 05 42.15   + 0 19 34.7   Zeigler
          10.46840    5 05 47.16   + 0 19 31.1     "
          10.81742    5 08 06.97   + 0 17 59.8   McNaught
          10.82153    5 08 08.67   + 0 17 56.9     "
          10.82233    5 08 08.96   + 0 17 55.4     "
          11.45840    5 12 28.20   + 0 14 34.4   Balam
          12.74647    5 21 30.76   + 0 08 01.7   Gilmore
          12.74994    5 21 32.14   + 0 08 00.3     "
          12.75550    5 21 34.55   + 0 07 59.2     "
          12.81987    5 22 02.38   + 0 07 35.7   McNaught
          12.82064    5 22 02.73   + 0 07 36.7     "
          12.82126    5 22 03.14   + 0 07 36.3     "
          13.82536    5 29 23.39   + 0 02 00.5     "
          17.44216    5 57 55.02   - 0 19 42.6   Skiff
          17.46367    5 58 05.85   - 0 19 51.4     "

K. W. Zeigler and B. A. Skiff (Lowell Observatory, Anderson Mesa
   Station).  Measurer Skiff.  Partially merged with star on Aug.
   10.468, affected by flaw on Aug. 17.442.
R. H. McNaught (Siding Spring).  Uppsala Southern Schmidt.  Very
   poor focus on Aug. 9.829, very dark film on Aug. 13.825.
D. D. Balam (Victoria).  Image trailed.
A. C. Gilmore (Mt. John Observatory).  Measurer P. M. Kilmartin.

     Improved parabolic orbital elements from 26 observations Aug. 7-17:

     T = 1988 Sept.17.589 ET          Peri. = 348.971
                                      Node  = 166.999   1950.0
     q = 0.16517 AU                   Incl. =  40.175


1988 August 19                 (4643)              Brian G. Marsden

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