Electronic Telegram No. 1106 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://www.cfa.harvard.edu/iau/cbat.html SUPERNOVA 2007nq IN UGC 595 R. Quimby, California Institute of Technology; F. Yuan and C. Akerloff, University of Michigan; and J. C. Wheeler, University of Texas, report the discovery of a supernova (mag about 17.6) in unfiltered CCD images taken on Oct. 21.15 UT using the 0.45-m ROTSE-IIIb telescope at the McDonald Observatory. The new object is located at R.A. = 0h57m33s.57, Decl. = -1o23'19".0 (equinox 2000.0), which is 20".2 west and 8".9 north of the center of UGC 595; it was found by subtracting a co-addition of images taken between Aug. 10 and 16 (limiting mag about 19.2). A spectrum (range 420-890 nm) of 2007nq obtained on Oct. 23.19 with the 9.2-m Hobby-Eberly Telescope (+ Marcario Low-Resolution Spectrograph) by M. Shetrone, E. Terrazas, and V. Riley shows it to be a type-Ia supernova, similar to SN 1992A prior to maximum light (Kirshner et al. 1993, Ap.J. 415, 589). Adopting the host-galaxy redshift of z = 0.045, the expansion velocity, derived from the minimum of the Si II (rest 635.5 nm) line, is 12500 km/s. NOTE: These 'Central Bureau Electronic Telegrams' are sometimes superseded by text appearing later in the printed IAU Circulars. (C) Copyright 2007 CBAT 2007 October 23 (CBET 1106) Daniel W. E. Green