Electronic Telegram No. 991 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 2007ev, 2007ew, 2007ex, 2007ey, 2007ez, 2007fa The "Nearby Supernova Factory" collaboration (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; P. Antilogus, J. Li, R. Pain, R. Pereira, and C. Wu, Laboratoire de Physique Nucleaire et de Haute Energies de Paris; C. Buton, Y. Copin, E. Gangler, and G. Smadja, Institut de Physique Nucleaire de Lyon; E. Pecontal and G. Rigaudier, Centre de Recherche Astronomique de Lyon; R. Kessler, Kavli Institute for Cosmological Physics, Chicago; J. Holtzman, New Mexico State University, Las Cruces; and C. Baltay, A. Bauer, N. Ellman, D. Rabinowitz, and R. Scalzo, Yale University) anonymously reports the discovery of six supernovae in images obtained during June 27-30 UT using the QUEST-II camera on the Palomar Oschin 1.2-m telescope, operated by the Palomar-QUEST Consortium. Spectra (range 320-1000 nm) obtained on July 2.3 and 2.5 with the SuperNova Integral Field Spectrograph on the University of Hawaii 2.2-m telescope were used to classify each object; 2007ev was then a few days after maximum, 2007ex was a few days before maximum, 2007ey was around maximum, and 2007ez was one month after maximum. R-band discovery magnitudes and astrometry were derived from comparison with the USNO-B1.0 catalogue. The following table summarizes the discovered supernovae. SN 2007 UT R.A. (2000.0) Decl. Mag. z Type 2007ev June 27.3 22 40 06.18 +24 41 57.1 18.1 0.04 Ia 2007ew June 28.2 15 15 59.13 + 4 34 03.3 19.5 0.03 II 2007ex June 28.4 0 26 49.89 +21 10 49.3 19.7 0.10 Ia 2007ey June 29.2 15 12 21.36 +12 30 03.7 19.7 0.11 Ia 2007ez June 30.4 23 29 29.57 +10 31 54.3 18.5 0.04 Ia 2007fa June 30.4 23 42 13.68 +11 04 28.5 19.8 0.06 II Editor's note: the incorrect title on the e-mailed version of CBET 990 has been corrected on the CBET and corresponding index values at the CBAT website. NOTE: These 'Central Bureau Electronic Telegrams' are sometimes superseded by text appearing later in the printed IAU Circulars. (C) Copyright 2007 CBAT 2007 July 2 (CBET 991) Daniel W. E. Green