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IAUC 7034: N Sco 1998; 1998eh; 1998ei; P/1998 S1

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                                                 Circular No. 7034
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Mailstop 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
BMARSDEN@CFA.HARVARD.EDU or DGREEN@CFA.HARVARD.EDU (science)
URL http://cfa-www.harvard.edu/iau/cbat.html
Phone 617-495-7244/7440/7444 (for emergency use only)


NOVA SCORPII 1998
     W. Liller, Vina del Mar, Chile, reports his discovery of an
apparent nova (mag 6.9) on Technical Pan photographs taken with
PROBLICOM on Oct. 21.0266, 21.0293, and 21.0389 UT with an 85-mm
camera lens (+ orange filter); he gave the location of the new star
as R.A. = 17h55m.4, Decl. = -31o00' (equinox 2000.0).  Nothing
brighter than mag 11.5 apppears at this location on photographs
taken on Oct. 17.  G. Garradd, Loomberah, N.S.W., reports the
following precise position and magnitude from an unfiltered CCD
image obtained on Oct. 22.409 with a 0.45-m f/5.4 reflector:  R.A.
= 17h55m24s.99, Decl. = -31o01'41".5, 7.4.  A. Jones, Nelson, New
Zealand, reports visual magnitude 8.4 on Oct. 22.43.  No star
within 15" of the new star is present in the USNO A1.0 or Guide
Star catalogues.


SUPERNOVA 1998eh IN ESO 74-G9
     J. Maza, Department of Astronomy, University of Chile, reports
the discovery by M. Wischnjewsky, on a T-Max 400 film taken by
L. E. Gonzalez with the Maksutov telescope at Cerro El Roble on
Oct. 15.078 UT, of a supernova (B about 18) located at R.A. =
20h48m57s.82, Decl. = -69o05'05".7 (equinox 2000.0), which is 5".2
east and 25".5 north of the nucleus of the spiral galaxy ESO 74-G9.
The object was confirmed via B and V direct images taken by D.
Gonzalez on Oct. 18.06 using the YALO telescope at Cerro Tololo.
SN 1998eh is not visible on a film obtained with the Cerro El Roble
telescope on Sept. 28.025 (B > 19.5).  The object is 0.5 mag
brighter on Oct. 18 (compared to Oct. 15).


SUPERNOVA 1998ei IN ANONYMOUS GALAXY
     Maza also reports the discovery by Roberto Antezana, taken as
above by L. E. Gonzalez on Oct. 15.201 UT, of a supernova (B about
18.5) located at R.A. = 23h32m03s.75, Decl. = -39o33'18".4 (equinox
2000.0), which is 11".8 west and 10".9 south of the nucleus of the
host spiral galaxy.  The object was confirmed via B and V direct
images taken by D. Gonzalez on Oct. 17 using the YALO telescope at
Cerro Tololo.  SN 1998ei is not visible on a film obtained with the
Cerro El Roble telescope on Sept. 28.223 (B > 19.5).


COMET P/1998 S1
     Visual m_1 estimates by K. Hornoch, Lelekovice, Czech Republic
(0.35-m reflector):  Oct. 20.89 UT, 14.3; 21.82, 14.0.

                      (C) Copyright 1998 CBAT
1998 October 22                (7034)            Daniel W. E. Green

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