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IAUC 5363: 1991a1

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                                                  Circular No. 5363
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Postal Address: Central Bureau for Astronomical Telegrams
Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Telephone 617-495-7244/7440/7444 (for emergency use only)
TWX 710-320-6842 ASTROGRAM CAM     EASYLINK 62794505
MARSDEN or GREEN@CFA.BITNET    MARSDEN or GREEN@CFAPS2.SPAN


COMET SHOEMAKER-LEVY (1991a1)
     Carolyn S. Shoemaker, Eugene M. Shoemaker, and David H. Levy
report their discovery of another comet.  The following positions
are available:

     1991 UT             R.A. (1950) Decl.        m1    Observer
     Oct.  6.50243    2 40 01.38   +37 43 08.2   16.5   Shoemaker
           7.45833    2 38 38.97   +37 47 07.3            "
           8.32690    2 37 22.62   +37 50 39.7            "
           9.12961    2 36 10.89   +37 53 47.2          McCrosky
           9.14110    2 36 09.83   +37 53 49.9            "
          10.06256    2 34 45.84   +37 57 17.5            "

E. M. Shoemaker, C. S. Shoemaker, and D. H. Levy (Palomar).  0.46-m
   Schmidt films.  Scanned by C. S. Shoemaker; measured by K. A.
   Lawler.  On Oct. 8, the comet appeared strongly condensed with a
   coma and a short tail in p.a. 200 deg.
R. E. McCrosky and C.-Y. Shao (Oak Ridge).  1.55-m reflector + CCD.
   Oct. 10 observation made through clouds.

     Preliminary parabolic orbital elements from the above
observations:

     T = 1992 July 29.619 ET          Peri. = 143.888
                                      Node  =  48.569   1950.0
     q = 0.88387 AU                   Incl. = 113.914

     1991 ET      R.A. (1950) Decl.     Delta      r       m1
     Oct.  1     2 47.37    +37 17.5    3.511    4.251    16.5
           6     2 40.74    +37 41.0
          11     2 33.31    +38 00.7    3.311    4.145    16.3
          16     2 25.14    +38 15.8
          21     2 16.30    +38 25.7    3.142    4.039    16.0
          26     2 06.87    +38 29.4
          31     1 57.00    +38 26.6    3.010    3.931    15.8
     Nov.  5     1 46.84    +38 16.8
          10     1 36.57    +38 00.1    2.917    3.823    15.6
          15     1 26.39    +37 36.6
          20     1 16.46    +37 07.1    2.863    3.713    15.5


1991 October 10                (5363)             Daniel W. E. Green

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