Electronic Telegram No. 1011 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 SUPERNOVAE 2007gc AND 2007gd The "Nearby Supernova Factory" collaboration (P. Antilogus, R. Pain, R. Pereira, and C. Wu, Laboratoire de Physique Nucleaire et de Haute Energies de Paris; G. Aldering, C. Aragon, S. Bailey, S. Bongard, M. Childress, S. Loken, P. Nugent, S. Perlmutter, K. Runge, R. C. Thomas, and B. A. Weaver, Lawrence Berkeley National Laboratory, Berkeley; C. Baltay, A. Bauer, D. Rabinowitz, and R. Scalzo, Yale University; G. Rigaudier and E. Pecontal, Centre de Recherche Astronomique de Lyon; C. Buton, Y. Copin, E. Gangler, and G. Smadja, Institut de Physique Nucleaire de Lyon; D. Birchall, Institute for Astronomy, University of Hawaii, Hilo; and J. Holtzman, New Mexico State University, Las Cruces) reports the discovery of two supernovae in images obtained on July 18 UT using the QUEST-II camera on the Palomar Oschin 1.2-m Schmidt telescope, operated by the Palomar-QUEST Consortium. Spectra (range 320-1000 nm) obtained on July 22.3 and 22.4 UT with the SuperNova Integral Field Spectrograph on the University of Hawaii 2.2-m telescope show both objects to be type-Ia supernovae near maximum. The R-band discovery magnitudes and astrometry were derived from comparison with the USNO-B1.0 catalogue. The following table summarizes the discovery information. SN 2007 UT R.A. (2000.0) Decl. Mag. z Type 2007gc July 18.2 14 47 47.32 +30 28 14.5 19.3 0.12 Ia 2007gd July 18.2 15 29 31.48 + 7 59 51.1 19.9 0.13 Ia NOTE: These 'Central Bureau Electronic Telegrams' are sometimes superseded by text appearing later in the printed IAU Circulars. (C) Copyright 2007 CBAT 2007 July 24 (CBET 1011) Daniel W. E. Green