2011CBET.2703....1D

A. J. Drake, S. G. Djorgovski, A. Mahabal, M. J. Graham, and R. Williams, California Institute of Technology; J. L. Prieto, Carnegie Observatories; M. Catelan, Pontificia Universidad Catolica de Chile; E. C. Beshore and S. M. Larson, Lunar and Planetary Laboratory, University of Arizona; and E. Christensen, Gemini Observatory, report the Catalina Real-time Transient Survey's discovery of several apparent supernovae in unfiltered survey images taken at Catalina, Mt. Lemmon, and Siding Spring:

---------------------------------------------------------------------------— SN 2011 UT R.A. (2000.0) Decl. Mag. Offset ---------------------------------------------------------------------------— 2011bs Mar. 27.35 14 36 49.84 +23 01 50.4 18.5 1" W 2011bt Mar. 28.30 12 52 55.22 + 7 46 51.7 19.2 2011bu Mar. 30.26 12 29 31.80 - 7 30 39.1 19.8 2011bv Mar. 30.35 13 02 53.57 - 4 02 36.0 18.8 2011bw Mar. 30.50 15 35 58.75 +21 18 42.8 19.2 2011bx Apr. 2.45 4 42 12.57 -48 44 12.6 17.1 2" W, 1" S 2011by Apr. 8.55 9 58 30.21 -10 53 15.1 19.3 15" E, 2" S ---------------------------------------------------------------------------—

SN 2011bx was given the provisional designation PSN J04421257-4844126 when posted by Drake on the Central Bureau's TOCP webpage. Joseph Brimacombe, Cairns, Australia, reports that he imaged 2011bx remotely using a 41-cm RCOS telescope + U9000 CCD camera at the Macedon Ranges Observatory, near Melbourne, Victoria, on Apr. 6.456 UT, measuring unfiltered mag 16.7 and position end figures 12s.52, 13".8; he has posted his image at the following website URL: http://www.flickr.com/photos/43846774@N02/5596333415/.