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THE ASTRONOMER Electronic Circular No 1324      1998 Aug 08 19.41UT
Ed:Guy M Hurst, 16,Westminster Close, Kempshott Rise,  Basingstoke,
Hants, RG22 4PP,England.Telephone/FAX(01256)471074Int:+441256471074
INTERNET: GUY@TAHQ.DEMON.CO.UK             GMH at AST.STAR.RL.AC.UK
WORLD WIDE WEB                    http://www.demon.co.uk/astronomer
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COMET 52P/HARRINGTON-ABELL
A. Maury, Observatoire de la Cote d'Azur, found this comet to be
undergoing what is apparently a significant outburst near m_1 =12.2
(m_2 = 14.47) on CCD images on July 21.1 UT (predicted magnitude
about 21; cf. MPC 31833).  The outburst has been confirmed by other
CCD astrometrists (M. Tichy and Z. Moravec at Klet; H. Mikuz and
J. Skvarc at Crni Vrh; and R. Greimel and D. D. Balam at Victoria)
and by visual observers.
IAUC 6975

SUPERNOVA 1998de IN NGC 252
M. Modjaz, E. Halderson, T. Shefler, J. Y. King, W. D. Li,
R.R. Treffers, and A. V. Filippenko, University of California at
Berkeley, report their discovery of an apparent supernova during
the course of the Lick Observatory Supernova Search with the 0.8-m
Katzman Automatic Imaging Telescope (KAIT).  SN 1998de was found
and confirmed in unfiltered CCD images obtained on July 23.5
(mag about 18.4) and 24.5 UT (mag about 17.8).  The object is
located at R.A. = 0h48m06s.88, Decl. = +27o37'28".5 (2000), which
is about 71".9 east and 3".4 north of the nucleus of NGC 252.
IAUC 6977

SUPERNOVA 1998df IN ANONYMOUS GALAXY
J. Maza, Department of Astronomy, University of Chile, reports
the discovery of an apparent supernova (B about 18.5) by R.
Antezana on a T-Max 400 film taken by L. E. Gonzalez using the
Maksutov telescope at Cerro El Roble on July 18.058 UT.  SN 1998df
is located at R.A. = 21h32m30s.57, Decl. = -65o03'32".8 (2000.0),
which is 1".7 west and 6".8 south of the nucleus of the host spiral
galaxy.  SN 1998df is also present on films obtained on July 1.175
(B about 18.0) and June 1.350 (B about 17.5).  Several films
obtained during 1997 show no object at the position of SN 1998df
(B > 20).
IAUC 6978

SUPERNOVA 1998dg IN MCG -3-34-008
Maza also reports the discovery of an apparent supernova (B about
17.5) by Marina Wischnjewsky on a film taken (as above) on July
19.063 UT.  SN 1998dg is at R.A. = 13h10m23s.85, Decl= -16o56'08".1
(2000), which is 17".5 west and 17".1 south of the nucleus of
MCG -3-34-008.  The new star was confirmed on direct CCD images by
E. Costa (University of Chile) on July 24.9 using the 0.91-m
telescope at Cerro Tololo; a preliminary estimate of the magnitude
is B about 16.
IAUC 6978

SUPERNOVA 1998dh IN NGC 7541
W. D. Li, M. Modjaz, E. Halderson, T. Shefler, J. Y. King, R.
R. Treffers, and A. V. Filippenko, University of California at
Berkeley, report their discovery of an apparent supernova during
the course of the Lick Observatory Supernova Search with the 0.8-m
Katzman Automatic Imaging Telescope (KAIT).  SN 1998dh was found
and confirmed in unfiltered CCD images obtained on July 20.5 (mag
about 16.8) and 24.5 UT (mag about 15.3).  The new object is
located at R.A. = 23h14m40s.31, Decl. = +4 32'14".1 (2000), which
is about 53".5 west and 10".4 north of the nucleus of NGC 7541.
IAUC 6978

Guy M Hurst