SIMBAD references

A. J. Drake, S. G. Djorgovski, M. J. Graham, A. Mahabal, and R. Williams, California Institute of Technology; J. L. Prieto, Princeton University; 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 discovery of an apparent supernova in unfiltered Catalina Sky Survey (CSS) images:

---------------------------------------------------------------------------— SN 2012 UT R.A. (2000.0) Decl. Mag. Offset ---------------------------------------------------------------------------— 2012ac Feb. 11.16 3 34 33.42 +18 04 40.3 18.6 1".9 W, 2".1 N ---------------------------------------------------------------------------—

Additional magnitudes for 2012ac were obtained with the Palomar 1.5-m reflector with gunn filters: Jan. 20.18 UT, [20.3 (CSS); Feb. 17.19, g = 18.9, r = 18.9, i = 19.2; Feb. 18.18, g = 19.0, r = 18.8, i = 19.3.