Circular No. 8158

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 2003gg IN IC 1321

Further to IAUC 8156, M. Moore, M. Papenkova, and W. Li report
the LOTOSS discovery of an apparent supernova (mag about 18.5) on
unfiltered KAIT images on June 27.4 and 28.4 UT.  SN 2003gg is
located at R.A. = 20h28m10s.68, Decl. = -18o17'32".4 (equinox
2000.0), which is 5".8 west and 2".9 south of the nucleus of IC
1321.  A KAIT image taken on 2002 July 9.4 showed nothing at this
position (limiting mag about 19.0).  A. V. Filippenko and R.
Chornock, University of California, Berkeley, report that
inspection of CCD spectra (range 320-900 nm) obtained on June 29
with the Keck-I telescope (+ LRIS) reveals that SN 2003gg is of
type II, probably 1-2 months after the explosion.  Hydrogen Balmer
lines, Na D, and Fe II lines exhibit well-developed P-Cyg profiles.

Host galaxy info: vel = 6660 km/s, 1.1 x 0.8, 15.18, (R')SB(r)bc

SN type info: II

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