Circular No. 7530

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 2000ex IN ESO 419-G3

A. B. Aazami and W. D. Li, University of California, Berkeley (UCB), on behalf of LOTOSS (cf. IAUC 7514), report the discovery with the 0.8-m Katzman Automatic Imaging Telescope (KAIT) of an apparent supernova on unfiltered images taken on Nov. 26.4 (mag about 17.6) and 27.3 UT (mag about 17.8). The new object is located at R.A. = 3h42m11s.71, Decl. = -27o51'48".0 (equinox 2000.0), which is 7".6 east and 3".4 north of the nucleus of ESO 419-G3 + MCG -05-09-022. A KAIT image of the same field on Nov. 17.4 also showed the supernova at mag about 17.8, while an image on Oct. 19.4 showed nothing at this position (limiting mag about 19.0). SN 1978C was located in this same galaxy (cf. IAUC 3254).

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Host galaxy info: V = 4093 km/s; 1.7' x 1.0'; 13.58; (R')SAB(rs)c

SN type info: II

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