Electronic Telegram No. 816

Central Bureau for Astronomical Telegrams INTERNATIONAL ASTRONOMICAL UNION M.S. 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A. IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions) CBAT@CFA.HARVARD.EDU (science) URL http://cfa-www.harvard.edu/iau/cbat.html

SUPERNOVA 2007M IN NGC 4076

     Further to IAUC 8794, N. Lee and W. Li report the LOSS discovery
of a supernova on unfiltered KAIT images taken on Jan. 14.47 (at mag
19.2) and 15.51 UT (mag 19.3).  The new object is located at R.A. =
12h04m34s.17, Decl. = +20o11'30".2 (equinox 2000.0), which is 23".2
east and 47".7 south of NGC 4076.  A KAIT image taken on 2006 Dec.
24.51 also showed 2007M at mag 18.6, while a KAIT image taken on 2006
May 12.19 showed nothing at this position (limiting mag 19.5).

     A. V. Filippenko, R. J. Foley, and J. M. Silverman, University of
California, Berkeley, report that inspection of a CCD spectrum (range
440-900 nm), obtained on Jan. 22 UT with the Keck II 10-m telescope
(+ DEIMOS), reveals that 2007M is a type-Ia supernova, roughly 2 months
past maximum brightness.

Host galaxy info: vel = 6214 km/s; 0.9 x 0.9; 14.35; Sa

SN type info: Ia

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