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IAUC 4476: 1987y

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                                                  Circular No. 4476
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


COMET LEVY (1987y)
     The following additional precise positions have been reported:

  1987 UT             R. A.  (1950)  Decl.        m1     Observer
  Oct. 17.11302    15 08 23.55    +16 23 16.4            Shoemaker
       17.11667    15 08 24.86    +16 23 11.1              "
       18.37509    15 15 32.1     +16 07 38       10     Kaneda
       18.37962    15 15 33.65    +16 07 26.6            Kojima
       18.38458    15 15 35.2     +16 07 32              Kaneda
       18.38547    15 15 35.96    +16 07 26.1            Kojima
       18.39218    15 15 37.51    +16 07 16.9              "
       21.38449    15 31 58.16    +15 27 58.5     10     Ueda
       21.39411    15 32 01.13    +15 27 50.4             "

E. Shoemaker (Palomar).  0.46-m Schmidt; measured by J. Gibson.
H. Kaneda and S. Hirai (JCPM Sapporo Station).
T. Kojima and S. Hayakawa (YGCO Hoshikawa and Nagano Stations).
S. Ueda (Kushiro).  0.16-m reflector.  Measured by H. Kaneda.

     The following improved parabolic orbital elements are from 9
observations, Oct. 13-21:

         T = 1987 Sept. 9.160 ET     Peri. =  13.277
                                     Node  = 143.085   1950.0
         q =   0.51640 AU            i     =  62.522

     1987 ET      R.A. (1950) Decl.     Delta      r       m1
     Oct. 24    15 45.58    +14 52.0    1.685    1.103     9.6
          26    15 55.56    +14 23.8
          28    16 05.20    +13 55.5    1.744    1.170     9.9
          30    16 14.49    +13 27.1
     Nov.  1    16 23.45    +12 59.0    1.808    1.237    10.2
           3    16 32.10    +12 31.2
           5    16 40.44    +12 04.0    1.876    1.304    10.5
           7    16 48.48    +11 37.4
           9    16 56.25    +11 11.6    1.948    1.370    10.8
          11    17 03.75    +10 46.5
          13    17 11.00    +10 22.3    2.023    1.435    11.1
          15    17 18.01    + 9 59.0
          17    17 24.79    + 9 36.7    2.100    1.500    11.4
          19    17 31.35    + 9 15.4
          21    17 37.71    + 8 55.0    2.178    1.564    11.6


1987 October 24                (4476)            Daniel W. E. Green

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