Circular No. 7268

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 1999ec IN NGC 2207

Modjaz and Li also report the discovery of an apparent supernova in NGC 2207 by the LOSS on unfiltered KAIT images taken on Oct. 2.5 and 3.5 (both with SN 1999ec at mag about 17.9). SN 1999ec also appeared on an image taken on Sept. 20.5 (mag about 17.5). The new object is located at R.A. = 6h16m16s.16, Decl. = -21 22'09".8 (equinox 2000.0), which is 81".7 west and 12".1 north of the nucleus of NGC 2207. A KAIT image of the same field on 1998 Oct. 14.5 (limiting mag about 19.0) showed nothing at the position of SN 1999ec. SN 1975A also appeared in NGC 2207, which is a galaxy interacting with IC 2613.

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Host galaxy info: V = 2741 km/s, 4.3'x2.8', SAB(rs)bc pec

SN type info: SN Ib

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