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IAUC 5432: 1992a; 1992A; 1991g1

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IAUC number 

                                                  Circular No. 5432
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 HELIN-ALU (1992a)
     E. Helin and J. Alu report their discovery of a comet on films
exposed by them and K. Lawrence with the 0.46-m Schmidt telescope at
Palomar.  The object is described as diffuse without central
condensation. Measurements by Alu:

     1992 UT             R.A. (2000) Decl.        m1
     Jan.  9.49566    8 22 35.00   + 5 03 16.0   16.5
           9.52378    8 22 33.86   + 5 03 02.7
          10.49375    8 21 49.05   + 4 53 52.9


SUPERNOVA 1992A IN NGC 1380
     N. Suntzeff, Cerro Tololo Interamerican Observatory, reports
that photometry based on CCD data obtained by J. Parker, D. Hunter,
and T. Barnes with the CTIO 1.5-m and 0.9-m telescopes shows that
SN 1992A reached maximum light around Jan. 16 UT.  The brightness at
maximum was V = 12.78.
     Corrigendum.  On IAUC 5429, line 1, for  K. Ross  read  K. Roth


COMET ZANOTTA-BREWINGTON (1991g1)
     Improved parabolic orbital elements from MPC 19467:

     T = 1992 Jan. 31.9902 TT         Peri. = 197.8699
                                      Node  = 254.9139  2000.0
     q = 0.643971 AU                  Incl. =  50.0258

1992 TT     R. A. (2000) Decl.     Delta      r    Elong. Phase      m1
Jan. 19    22 38.63    + 2 17.1    0.807    0.701   44.7   81.1      8.0
     24    23 04.50    - 3 36.3    0.761    0.666   42.5   86.9      7.6
     29    23 30.35    -10 28.1    0.728    0.647   41.1   91.3      7.4
Feb.  3    23 55.34    -17 58.5    0.709    0.645   40.8   93.2      7.4
      8     0 18.92    -25 36.8    0.706    0.661   42.1   92.3      7.4
     13     0 40.94    -32 52.9    0.715    0.693   44.6   89.0      7.7
     18     1 01.75    -39 27.3    0.734    0.738   48.0   84.3      8.0
     23     1 21.99    -45 12.7    0.758    0.793   51.9   79.2      8.4
     28     1 42.54    -50 10.8    0.785    0.855   56.2   74.1      8.8


1992 January 21                (5432)             Daniel W. E. Green

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