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IAUC 4447: 1987A; 1987L; N Vul 1984 No. 2; P/ENCKE

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                                                  Circular No. 4447
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 1987A IN THE LARGE MAGELLANIC CLOUD
     F. Makino, Institute of Space and Astrronautical Science,
Tokyo, telexes: "We have been regularly watching SN 1987A with the
GINGA large-area proportional counters since Feb. 25.  In the
scanning observations of Aug. 15 we noted a significant flux
increase over the previous level from the field of view including SN
1987A in the energy range 10-20 keV.  This excess was confirmed by
a following extended observation during Sept. 1-6.  The present
error box is 0 .2 wide and 1  long.  The excess flux is estimated
to be about 2 x 10*-11 erg cm-2 s-1 in the range 10-20 keV.  The
preliminary spectrum above 10 keV is very hard for any of the known
classes of x-ray sources, but there is no evidence for a
statistically significant increase in the last month."
     G. K. Moore, University of Wollongong, provides the following
photometric observations: Sept. 3.7 UT, V = 5.03, B-V = +1.01, V-I
= +1.59, V-R = +1.27.


SUPERNOVA 1987L IN NGC 2336
     J. R. Graham, California Institute of Technology, reports that
a spectrum obtained with the Palomar 5-m reflector on Sept. 3 by
C. Beichman and G. Neugebauer confirms (cf. IAUC 4446) that this
is a type Ia supernova a month or so from maximum.  The measured
offset from the nucleus is 59" east, 70" south.


NOVA VULPECULAE 1984 No. 2
     Visual magnitude estimates: June 26.48 UT, 12.2 (J. Isles,
Akrounda, Cyprus); July 6.02, 11.9 (P. Schmeer, Bischmisheim, W.
Germany); 16.95, 12.3 (R. Monella, Covo, Italy); 28.08, 12.1
(Schmeer); Aug. 15.93, 12.0 (Schmeer); 17.00, 12.2 (Schmeer);
20.93, 12.2 (Schmeer); 30.58, 12.2 (S. Sakuma, Kawasaki, Japan).


PERIODIC COMET ENCKE
     Total visual magnitude estimates: July 25.34 UT, 7.0 (G.
Garradd, Tamworth, N.S.W., 0.15-m reflector); 26.90, 7.1 (V. F. de
Assis Neto, Sao Francisco de Oliveira, Brazil, 10 x 70 binoculars);
28.26, 6.2 (G. W. Wolf, Wellington, N.Z., 0.06-m refractor);
30.36, 7.7 (T. Lovejoy, Shailer Park, Queensland, 15 x 80
binoculars); Aug. 1.31, 8.0 (Wolf); 8.33, 9.0 (Wolf).


1987 September 8               (4447)              Brian G. Marsden

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