Electronic Telegram No. 1523 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 2008fx AND 2008fy A. J. Drake, S. G. Djorgovski, A. Mahabal, M. J. Graham, and R. Williams, California Institute of Technology; E. C. Beshore, S. M. Larson, and R. Hill, Lunar and Planetary Laboratory, University of Arizona; and E. Christensen, Gemini Observatory, report the discovery in the course of the Catalina Real-time Transient Survey (CRTS) of two apparent supernovae detected in multiple sequences of unfiltered CCD exposures taken with the 0.7-m f/1.9 Catalina Schmidt telescope (+ 4000x4000 camera): SN 2008 UT R.A. (2000.0) Decl. Mag. Offset 2008fx Sep. 23.32 2 11 33.98 +23 52 49.6 17.7 23".1 E, 17".8 S 2008fy Sep. 30.38 2 24 08.86 +26 40 10.3 19.2 0".6 W, 18".3 N Additional magnitudes for 2008fx, obtained with the Palomar 1.52-m reflector (+ Gunn r filter) unless noted otherwise: Jan. 11.14, [20.5 (CRTS); Sept. 25.19, 17.9; 26.19, 17.9; 27.19, 17.8; 28.18, 17.8. The host galaxy of 2008fx (2MASX J02113233+2353074) has 2MASS magnitudes J = 14.4, H = 13.4, and K = 13.1. Additional CRTS magnitudes for 2008fy: Mar. 10.11 UT, [20.0; Sept. 23.43, 19.4. NOTE: These 'Central Bureau Electronic Telegrams' are sometimes superseded by text appearing later in the printed IAU Circulars. (C) Copyright 2008 CBAT 2008 October 2 (CBET 1523) Daniel W. E. Green