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IAUC 6379: 1996W; 1996V; 48P; 116P

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                                                  Circular No. 6379
Central Bureau for Astronomical Telegrams
Postal Address: Central Bureau for Astronomical Telegrams
Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
Phone 617-495-7244/7440/7444 (for emergency use only)

     W. D. Li, Y. L. Qiu, Q. Y. Qiao, J. Ma, and J. Y. Hu, Beijing
Astronomical Observatory (BAO), report the discovery of a supernova
found on CCD images taken on Apr. 10 and 11 with the 0.60-m
reflector during the BAO supernova survey.  SN 1996W (V about 16)
is located 3" west and 40" north of the center of NGC 4027 (R.A. =
11h59m30s.1, Decl. = -19o16'05", equinox 2000.0).  The object is
not present on an image taken on Mar. 1.
     L. Wang, and J. C. Wheeler, University of Texas at Austin and
McDonald Observatory, report:  "SN 1996W was observed on Apr. 12 UT
at the McDonald Observatory 2.1-m telescope (+ Imaging Grism
Instrument).  Inspections of a fully-reduced spectrum (range 424.7-
813.5 nm, resolution 2.0 nm) show that this is a type-II supernova
prior to optical maximum.  Weak but conspicuous H-alpha and H-beta
P-Cyg profiles are superimposed on a very blue continuum.  The
redshift of the host galaxy is about 1300 km/s as derived from
narrow emission lines of the neighboring H II region.  The
expansion velocity of the supernova ejecta is about 14 300 km/s, as
derived from the H-alpha P-Cyg profile.  The He I/Na I 587.6-nm
feature is also present."

     P. Sicoli reports the following precise position of SN 1996V
obtained at Sormano by V. Giuliani and P. Ghezzi with the 0.5-m
reflector (+ CCD) on Apr. 11.939 UT:  R.A. = 11h21m31s.23, Decl. =
+2o48'40".4 (equinox 2000.0).

    CCD R magnitude estimates by W. Offutt, Cloudcroft, NM (0.6-m
reflector):  Mar. 16.32 UT, 20.9; Apr. 9.23, 20.7.

     Total visual magnitude estimates:  Mar. 8.83 UT, 12.5 (K.
Hornoch, Lelekovice, Czech Republic, 0.35-m reflector); 10.92, 12.2
(T. Vanmunster, Landen, Belgium, 0.35-m reflector); 19.81, 12.1 (V.
Znojil, Brno, Czech Republic, 25x100 binoculars); 24.04, 12.4 (J.
M. San Juan, Teruel, Spain, 0.44-m reflector); Apr. 8.92, 12.6 (J.
Carvajal, Madrid, Spain, 0.21-m reflector); 11.06, 12.1 (G. W.
Kronk, Troy, IL, 33.3-cm reflector).

                      (C) Copyright 1996 CBAT
1996 April 12                  (6379)            Daniel W. E. Green

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