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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
Mailstop 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
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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

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."

     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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