Circular No. 7392

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 2000bg IN NGC 6240

Y. Sato and W. D. Li, University of California at Berkeley, on behalf of the Lick Observatory Supernova Search (cf. IAUC 6627, 7126), report the discovery with the 0.8-m Katzman Automatic Imaging Telescope (KAIT) of an apparent supernova on unfiltered images taken on Apr. 1.5 and 2.5 UT, both with mag about 17.4. SN 2000bg is located at R.A. = 16h52m58s.13, Decl. = +2 23'50".5 (equinox 2000.0), which is 11".4 west and 12".0 south of the nucleus of NGC 6240. An unfiltered image taken on Mar. 23.5 showed nothing at the position of the new object (limiting mag about 19.0).

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Host galaxy info: V = 7339 km/s, I0: pec;LINER Sy2; 2.1' x 1.1'

SN type info: IIn

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