Circular No. 7637

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 2001cg IN IC 3900

W. D. Li, University of California at Berkeley, reports the discovery by LOTOSS (cf. IAUC 7514) of an apparent supernova (mag about 17.8) in unfiltered images taken with the Katzman Automatic Imaging Telescope (KAIT) on May 28.2 and 29.2 UT. The new object is located at R.A. = 12h55m40s.87, Decl. = +27o15'03".9 (equinox 2000.0), which is 6".0 west and 1".5 north of the nucleus of IC 3900. A KAIT image taken on May 15.2 showed nothing at this position (limiting mag about 19.0).

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Host galaxy info: Vel = 7115 km/s, 0.7' x 0.5', 14.98, SB0:

SN type info: Ia-pec

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