Circular No. 7531

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 2000ey IN IC 1481

R. Chornock, W. D. Li and A. V. Filippenko, University of California, Berkeley, 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. 11.2 (mag about 16.2), 20.2 (mag about 15.4) and 28.2 UT (mag about 15.6). The new object is located at R.A. = 23h19m25s.20, Decl. = +5o54'21".1 (equinox 2000.0), which is 0".6 east and 1".2 south of the nucleus of IC 1481. A KAIT image of the same field on Nov. 6.3 showed nothing at the position of the supernova (limiting mag about 18).

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Host galaxy info: V = 6118 km/s; 0.8' x 0.7'; 14.39; S? LINER

SN type info: Ia

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