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IAUC 7024: 1998ec; NGC 7582; P/1998 QP_54

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                                                 Circular No. 7024
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)


SUPERNOVA 1998ec IN UGC 3576
     S. Jha, P. Garnavich, P. Challis, and R. Kirshner, Harvard-
Smithsonian Center for Astrophysics, report that a spectrum of SN
1998ec, taken by P. Berlind on Sept. 29.5 UT with the F. L. Whipple
Observatory 1.5-m telescope (+ FAST spectrograph), reveals it to be
of type Ia before maximum light.  The NASA/IPAC Extragalactic
Database recession velocity for UGC 3576 is 5948 km/s, which
implies an expansion velocity of 13 000 km/s for the supernova
atmosphere, derived from the strong Si II 635.5-nm absorption
feature.


NGC 7582
     B. Joguet, European Southern Observatory (ESO); D. Kunth,
Institut d'Astrophysique de Paris; and R. Terlevich, Institute of
Astronomy, Cambridge, report the discovery of a bright flare in the
Seyfert 2 galaxy, NGC 7582, as revealed by spectroscopy
(integration time 2700 s; spectral resolution 0.3 nm; range 370-670
nm) performed on July 11 with the ESO 1.54-m telescope at La Silla:
"The galaxy is located at R.A. = 23h18m23s.50, Decl. = -42o22'14".0
(equinox 2000.0).  From the spectrum, broad line components at
H-alpha and H-beta are seen with a blueshift of about 2500 km/s
with respect to the narrow lines.  The FWZI of the broad H-alpha
component is about 25 000 km/s.  Also, broad Fe II emission lines
can be observed around 440 and 540 nm.  Another spectrum
(integration time 3600 s; spectral resolution 0.2 nm; range 340-540
nm) taken on June 1 with the ESO 1.52-m telescope does not show any
sign of broad lines in the nucleus of this galaxy.  The continuum
brightened by about a factor of two at 540 nm between the June and
July spectra.  The nuclear magnitude computed with the July
spectrum at 540 nm is 14.3."


COMET P/1998 QP_54 (LONEOS-TUCKER)
     Improved orbital elements from MPC 32595:

     T = 1998 Oct.  6.4196 TT         Peri. =  30.1103
     e = 0.551814                     Node  = 341.9272  2000.0
     q = 1.881718 AU                  Incl. =  17.7418
       a =  4.198518 AU    n = 0.1145671    P =   8.603 years

                      (C) Copyright 1998 CBAT
1998 October 6                 (7024)            Daniel W. E. Green

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