Circular No. 6981

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)

NOVA IN M31

M. Modjaz, E. Halderson, T. Shefler, J. Y. King, W. D. Li, R. R. Treffers, and A. V. Filippenko, University of California at Berkeley, report their discovery of an apparent nova during the course of the Lick Observatory Supernova Search (cf. IAUC 6627) with the 0.8-m Katzman Automatic Imaging Telescope (KAIT). Available magnitude estimates from unfiltered CCD images: July 23.5 UT, about 16.1; 27.5, about 14.4; 31.5, about 15.6. The object is located at R.A. = 0h42m37s.00, Decl. = +41o16'56".7 (equinox 2000.0), which is about 82".4 west and 47".7 north of the nucleus of NGC 224 (M31). A KAIT image on July 19.5 does not show a star at the position of the apparent nova (limiting mag about 18.0).

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