Circular No. 7915

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 2002df IN MCG -01-53-6

M. Papenkova and W. D. Li, University of California at Berkeley, report the LOTOSS (cf. IAUC 7906) discovery of an apparent supernova on unfiltered CCD images taken with the 0.8-m Katzman Automatic Imaging Telescope (KAIT) on June 2.5 (mag about 17.4) and 3.5 UT (mag about 17.1). SN 2002df is located at R.A. = 20h45m39s.33, Decl. = -4 57'04".7 (equinox 2000.0), which is 27".1 west and 4".2 south of the nucleus of MCG -01-53-6. A KAIT image of the same field on May 10.5 showed nothing at this position (limiting mag about 18.5).

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Host galaxy info: 1.3 x 1.3, 15, (R')Sab

SN type info: Ia

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