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IAUC 4538: 1988A; 1988a

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                                                  Circular No. 4538
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


SUPERNOVA 1988A IN M58
     R. H. McNaught, Siding Spring Observatory, reports the following
position measured from a U.K. Schmidt plate exposed Jan. 24 by
P. McKenzie and M. Hartley: R.A. = 12h35m12.05, Decl. = +12 04'49.0 (
equinox 1950.0; uncertainty +/- 0".9); offsets from galaxy center are 0".5
west, 46".1 south.  Visual magnitude estimates: Jan. 22.42 UT, 14.7
(J. Griese, Stamford, CT); 23.5, 14.6 (D. Patchick, Culver City,
CA); 24.72, 14.6 (McNaught); 26.75, 14.7 (McNaught); 27.7, 14.6 (R.
O. Evans, Hazelbrook, N.S.W.).


COMET LILLER (1988a)
     The following improved parabolic orbital elements, from MPC
12787, are from 22 observations 1988 Jan. 12-22:

         T = 1988 Mar. 31.187 ET     Peri. =  56.931
                                     Node  =  30.667   1950.0
         q =   0.84842 AU            i     =  73.427

     1988 ET     R. A. (1950) Decl.     Delta      r       m1
     Jan. 20    23 52.66    -22 14.4    1.873    1.506     9.6
          25    23 54.49    -18 48.4
          30    23 56.74    -15 20.3    1.866    1.376     9.2
     Feb.  4    23 59.36    -11 49.9
           9     0 02.29    - 8 16.8    1.853    1.250     8.8
          14     0 05.49    - 4 40.4
          19     0 08.92    - 1 00.1    1.829    1.131     8.3
          24     0 12.57    + 2 44.6
          29     0 16.41    + 6 34.6    1.793    1.024     7.9
     Mar.  5     0 20.45    +10 30.5
          10     0 24.70    +14 33.3    1.739    0.935     7.4
          15     0 29.23    +18 43.9
          20     0 34.11    +23 03.0    1.666    0.874     7.0
          25     0 39.51    +27 31.8
          30     0 45.63    +32 11.1    1.575    0.849     6.8
     Apr.  4     0 52.81    +37 02.2
           9     1 01.59    +42 06.1    1.471    0.864     6.7
          14     1 12.74    +47 23.8
          19     1 27.56    +52 54.9    1.368    0.917     6.8
          24     1 48.29    +58 36.1
          29     2 19.10    +64 18.4    1.284    1.000     7.0


1988 January 28                (4538)            Daniel W. E. Green

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