Electronic Telegram No. 1924
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


SUPERNOVA 2009il
     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. = -63o00'39".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      superseded by text appearing later in the printed IAU Circulars.

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