Electronic Telegram No. 1924

Central Bureau for Astronomical Telegrams
M.S. 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138,
U.S.A. IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
URL http://www.cfa.harvard.edu/iau/cbat.html

J. Maza, M. Hamuy, R. Antezana, L. Gonzalez, P. Gonzalez, P. Lopez, S. Silva, G. Folatelli, D. Iturra, R. Cartier, F. Forster, S. Marchi, and A. Rojas, Universidad de Chile; G. Pignata, Universidad Andres Bello; B. Conuel, Wesleyan University; and D. Reichart, K. Ivarsen, J. Haislip, A. Crain, D. Foster, M. Nysewander, and A. LaCluyze, University of North Carolina at Chapel Hill, on behalf of the CHASE project, report the discovery of an apparent supernova (mag approximately 17.7 +/- 0.3) on an unfiltered CCD image taken on Aug. 21.33 UT with the 0.41-m 'PROMPT 3' telescope located at Cerro Tololo. The new object is located at R.A. = 6h33m52s.66 +/- 0".1, Decl. = -63°00'39".8 +/- 0".1 (equinox 2000.0), which is about 7".8 east and 5".0 south of the center of the apparent host galaxy. Nothing is visible at this position on archival images taken on Mar. 4.09 (limiting mag 18.0) and Feb. 28.12 (limiting mag 18.5). Additional approximate unfiltered magnitudes for 2009il: Aug. 23.32, 17.7; 24.32, 17.6.

NOTE: These 'Central Bureau Electronic Telegrams' are sometimes superseded by text appearing later in the printed IAU Circulars.

2009 August 24
(C) Copyright 2009 CBAT
(CBET 1924)
Daniel W. E. Green