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IAUC 6844: 1998V; 1998W; 1998T; 29P

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                                                 Circular No. 6844
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 1998V IN NGC 6627
     S. Jha, P. Garnavich, and R. Kirshner, Harvard-Smithsonian
Center for Astrophysics, report that a spectrum obtained at the
1.5-m Tillinghast telescope at Mount Hopkins on Mar. 19.5 UT by D.
Koranyi and M. Calkins show that SN 1998V (cf. IAUC 6841) is a
type-Ia supernova at maximum.  The strong Si II absorption shows a
photospheric expansion velocity of -10 800 km/s.  Narrow emission
lines from the host galaxy give a redshift of 5280 km/s.


SUPERNOVA 1998W IN NGC 3075
     Jha et al. also report that a spectrum obtained at the 1.5-m
Tillinghast telescope on Mar. 19.4 UT shows that this object (cf.
IAUC 6843) is a type-II supernova.  A broad H-alpha feature with a
P-Cyg profile is clearly seen despite the low-signal-to-noise data.
The photospheric velocity estimated from the minimum of the
absorption is -7200 km/s.  Narrow emission lines from the host
galaxy give a redshift of 3490 km/s.


SUPERNOVA 1998T IN IC 694
     D. Balam, University of Victoria, reports the following
precise position for SN 1998T, obtained with the 1.82-m Plaskett
telescope of the National Research Council of Canada:  R.A. =
11h28m35s.97, Decl. = +58o33'35".9 (equinox 2000.0).  A nearby star
(R = 17.3) has position end figures 34s.00, 31'21".4.
         Visual magnitude estimates:  Mar. 15.795 UT, 14.3 (K.
Hornoch, Lelekovice, Czech Republic); 19.772, 14.3 (Hornoch);
19.776, 14.4 (M. Plsek, Lelekovice, Czech Republic); 20.96, 13.9
(K. Sarneczky, Agasvar, Hungary).


COMET 29P/SCHWASSMANN-WACHMANN 1
     Total visual magnitude estimates:  Feb. 20.37 UT, 13.6 (R.
Keen, Mt. Thorodin, CO, 0.32-m reflector); 28.03, 14.3 (J. Carvajal,
Avila, Spain, 0.45-m reflector); Mar. 20.44, 12.8 (N. Biver,
Honolulu, HI, 0.26-m reflector); 20.96, 12.5 (K. Sarneczky, Agasvar,
Hungary, 0.44-m reflector); 21.05, 12.8 (Carvajal, 0.32-m reflector);
21.06, 12.6 (J. M. San Juan, Avila, Spain, 0.32-m reflector).

                      (C) Copyright 1998 CBAT
1998 March 21                  (6844)            Daniel W. E. Green

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