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IAUC 4355: Poss. COMETS; 1987A; 1986l

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                                                  Circular No. 4355
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


POSSIBLE COMETS
     R. H. McNaught, Siding Spring Observatory, communicates the
discovery by Malcolm Hartley of a possible comet on a single plate
taken with the 1.2-m Schmidt telescope.  The object has a 2' tail
to the northwest.  The direction of motion is uncertain:

       1987 UT            R.A.   (1950)    Decl.       m1
       Jan.  5.66764     9 39 47.43    - 8 29 51.4    17.5
             5.73361     9 39 49.25    - 8 29 34.0

     Carlos Torres, Department of Astronomy, University of Chile,
reports his discovery of a possible comet at Cerro El Roble, with
the following approximate positions available.  The object is
described as diffuse with condensation and with a tail < 1 deg long.

           1987 UT            R.A. (1950) Decl.      m2
           Mar. 28.25972     13 52.5     -49 10      15
                29.07153     13 51.0     -49 02      15


SUPERNOVA 1987A IN THE LARGE MAGELLANIC CLOUD
     J. B. Hearnshaw and J. Haar, University of Canterbury,
Christchurch, telex:  "From Mt. John Observatory spectra, we have
found that the H-alpha emission earlier found to be strongly asymmetric
(IAUC 4352) has, since Mar. 22.32 UT, become double-peaked, with
the shorter-wavelength peak being the more intense.  Emission peak
wavelengths were:  Mar. 22.32, 657 and 669 nm; 24.36, 656 and 668
nm; 25.32, 657 and 668 nm; all +/- 1 nm.  The longer wavelength may
be He I (667.8 nm)."
     Further visual magnitude estimates:  Mar. 25.49 UT, 3.8 (D. A.
J. Seargent, The Entrance, N.S.W.); 26.89, 4.0 (J. Campos, Durban,
R.S.A.); 27.38, 4.1 (G. Garradd, Tamworth, N.S.W.); 27.44, 3.9
(Seargent); 27.74, 3.9 (Campos); 28.81, 3.9 (Campos); 29.42, 3.7
(Garradd); 29.41, 3.8 (Seargent); 29.47, 3.6 (McNaught).


COMET WILSON (1986l)
     Total visual magnitude estimates (B = binoculars):  Mar. 9.73
UT, 7.3 (Garradd, 7x50 B); 13.25, 7.3 (M. Cliverd, Faraday Station,
Antarctica, 7x50 B); 25.08, 6.9 (Campos, 0.13-m refractor); 30.31,
6.9 (V. de Assis Neto, Sao Francisco de Oliveira, Brazil, 10x70 B).


1987 March 31                  (4355)            Daniel W. E. Green

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